ML063530162

Initial Exam - 11/2006 - Final RO Written Exam

ML063530162
Person / Time
Site:	Waterford
Issue date:	05/02/2006
From:	Entergy Corp
To:	NRC Region 4
References
Download: ML063530162 (87)

Text

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 1 R06001 X Question Information Examination Outline Cross-Reference Previous Bank QID 87-N Level RO NRC Exam History N/A Tier/Group 1/1 Tech References TGOP-902-000 K/A 4.1-E7-EK1.02 T.S Bases 3 / 4.1.1.1 Ref Supplied N/A Imp. Rating 3.4 Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPE01 11 Proposed Question The reactor trips from 100% power at MOC. The control room operators verify that the reactor is tripped, BUT immediately note that the turbine has NOT tripped and the generator breakers remain closed.

If left unresolved this malfunction will cause ____________________________, resulting in A an uncontrolled cooldown of the RCS; less shutdown margin.

B main turbine blade heating; damage to the main turbine rotor and shaft.

C a loss of condenser vacuum; loss of steam bypass capability.

D an increase in RCS pressure; pressurizer safety valves lifting.

Answer A Explanation A is correct; heat removal by the generator after the trip would cause a cooldown resulting in the addition of positive reactivity thus reducing shutdown margin.

B is incorrect; the reduced steam flow would NOT result in blade overheating.

C is incorrect; there would be no loss of circ water and vacuum would be maintained.

D is incorrect; the reduced heat input to the RCS would lower pressure.

Comments Page 1 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 2 R06002 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References OP-902-002; K/A 4.2-A8-G2.2.34 TGOP-902-002 Ref Supplied N/A Imp. Rating 2.8 Cognitive Level 2 10 CFR 55.41(b) 1 Learning Objective WLP-OPS-PPE02 18 Proposed Question Plant conditions are as follows:

• A pressurizer safety valve has failed partially open.

• RCS pressure is 1150 psia and slowly dropping.

• All systems have operated per design.

• The crew has entered OP-902-002, Loss of Coolant Accident.

• The procedure directs performing a controlled cooldown to < 350°F using steam bypass or atmospheric dumps valves.

In this situation, a __________________ procedurally directed A SDM calculation is; due to the positive reactivity effects from the cooldown.

B SDM calculation is NOT; because adequate boration is assumed due to the SIAS.

C depressurization is; to provide more Safety Injection flow to the core.

D depressurization is NOT; because break flow is assumed to reduce pressure enough to permit SDC entry.

Answer BA Explanation B is correct; SDM calculation is NOT required by OP-902-002. The Tech Guide states that the effects of the cooldown on core reactivity should be considered, but adequate boration is assumed due to the SIAS.

A is incorrect; SDM calculation is NOT required by OP-902-002.

C and D are incorrect; the Tech Guide states that depressurization may be necessary to permit SDC entry.

Comments - C Following post exam analysis of this question, the correct answer for this question was changed from B to A.

Page 2 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Page 3 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 3 R06003 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References TS and Basis 3.6.1.5 K/A 4.1-E9-EK3.16 Ref Supplied N/A Imp. Rating 3.8 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-CB00 06 Proposed Question The 90°F temperature limit for the Containment applies _________________.

This limit ensures ______________ temperature is maintained within design specifications during a LOCA.

A in Modes 1-4; clad B in Modes 1-4; Containment C above 70% power; clad D above 70% power; Containment Answer C Explanation C is correct; TS 3.6.1.5 limits the low temperature to 90°F only above 70% power, and the basis states this is to ensure peak clad temperature remains < 2200°F.

A and B are incorrect; TS 3.6.1.5 limits the low temperature to 90°F only above 70% power.

D is incorrect; TS 3.6.1.5 basis states this is to ensure peak clad temperature remains < 2200°F.

Comments This limit applies to a SB LOCA because it is based on the difference in the rate ECCS is injecting versus the rate at which the RCS is emptying into the Containment. At lower Containment pressures, this difference is greater than at higher Containment pressures.

Page 4 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 4 R06004 X Question Information Examination Outline Cross-Reference Previous Bank QID 15-A Level RO NRC Exam History 2002 NRC RO Exam Tier/Group 1/1 Tech References OP-902-002 K/A 4.1-E11-EK2.02 Ref Supplied Att.2-F of OP-902-009 Imp. Rating 2.6 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-PPE02 16 Proposed Question Following a Large Break LOCA, Reactor Coolant System pressure is 125 psia, and temperature is 345°F.

Select the MINIMUM flow required to meet acceptable Low Pressure Safety Injection (LPSI) System performance.

A LPSI flow is 2000 gpm from Train A or B B LPSI flow is 2500 gpm from Train A or B C LPSI Train A flow is 1000 gpm, LPSI Train B flow is 1000 gpm D LPSI Train A flow is 1250 gpm, LPSI Train B flow is 1250 gpm Answer B Explanation B is correct; minimum acceptable LPSI flow for RCS pressure of 125 psia is 2500 from Train A or B.

A is incorrect; 2000 gpm from train A or B is in the unacceptable region of Curve 2-F.

C and D are incorrect; neither meets the 2500 gpm per Train A or B flow.

Comments Old Q modified to force student to distinguish BOTH Train flow vs single train flow.

Old Q answer C was correct.

Page 5 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 5 R06005 X Question Information Examination Outline Cross-Reference Previous Bank QID 3491-B OPS bank Level RO NRC Exam History N/A Tier/Group 1/1 Tech References OP-901-130 K/A 4.2-A15/17-AA2.02 Ref Supplied N/A Imp. Rating 2.8 Cognitive Level 2 10 CFR 55.41(b) 14 Learning Objective WLP-OPS-PP010 04 Proposed Question The following plant conditions exist:

• Mode 1, 100% power

• RCP 2B THRUST BRNG TEMPERATURE HI annunciator is in alarm

• RCP 2B Motor Lube Oil Reservoir temperature is 185°F and stable

• RCP 2B Upper Thrust Bearing Temperature indicates 206°F and stable What is required by OP-901-130, Reactor Coolant Pump Malfunction, as a result of the PRESENT indications?

A Trip the reactor and secure RCP 2B.

B Commence a plant shutdown.

C Start ACCW Pumps and WCT Fans.

D Start one RCP 2B lift oil pump.

Answer C Following post exam analysis this question was deleted.

Explanation C is correct; when bearing temperatures exceed 205°F, Duty Plant Manager and System Engineer are notified and attempt to lower bearing temperature(s) by EITHER of the following:

• Start Dry Cooling Tower Fans.

• Start Auxiliary Component Cooling Water Pump(s) AND associated Wet Cooling Tower Fans.

A is incorrect; Reactor and RCP are required to be tripped when bearing temperatures exceed 225°F.

B is incorrect; if any bearing temperature exceeds 212°F, then commence Rapid Plant power reduction.

D is incorrect; Oil Lift pump is required to be started only if the ARD has a high temperature condition.

Page 6 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Comments Old question matched K/A AA2.08 for RCP trip conditions on high bearing temperature.

RCP 2B THRUST BRNG TEMPERATURE HI annunciator F-9 setpoint is 203°F for upper bearing, per ARP OP-500-008 Rev 17.

Page 7 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 6 R06006 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References Dwg. G-168 Sheet 1 K/A 4.2-A22-G2.1.24 Ref Supplied Dwg. G-168 Sheet 1 Imp. Rating 2.8 Cognitive Level 2 10 CFR 55.41(b) 3 Learning Objective WLP-OPS-PID00 03 WLP-OPS-CVC00 03 Proposed Question Plant conditions are as follows:

• Plant is at 100% power.

• First standby Charging Pump has started; Charging flow is ~88 gpm.

• Containment Liquid Leakage Rate Recorder has risen to maximum flow (20 gpm).

• Letdown Containment Isolation valve CVC-101 has automatically closed on high temperature.

• Pressurizer level has dropped to 53% and is NOT recovering.

The crew secures Charging and Letdown, and Containment Liquid Leakage Rate Recorder slowly drops to < 0.5 gpm.

Using flow diagram G-168 Sheet 1; identify which ONE of the listed pipe lines is the MOST LIKELY leakage location for the above conditions.

A 2CH2-56A B 2CH2-191A/B C 1RC2-42RL2 D 1CH2-58A/B Answer B Explanation B is correct; At this location, cooling from incoming Charging flow will be lost to the Regenerative HX and Letdown will auto isolated on high temperature, and the source of leakage will be stopped.

A is incorrect; At this location, letdown will NOT auto isolate on high temperature.

C is incorrect; At this location, the leak location would NOT be isolated from the RCS.

D is incorrect; At this location, Letdown flow indication would have been 0 because the leak would have been upstream of the flow transmitter (which is NOT shown on the provided reference).

Page 8 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Comments 55.6 % is 100% PZR level, 1st backup Charging pump starts at -2.5%, 53% is below that value.

Page 9 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 7 R06007 X Question Information Examination Outline Cross-Reference Previous Bank QID 4130-O Level RO NRC Exam History 2002 NRC RO Exam Tier/Group 1/1 Tech References OP-901-131 K/A 4.2-A25-AA1.01 Ref Supplied Att. 2 from OP-901-131 Imp. Rating 3.6 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-REQ21 03 Proposed Question The plant is shutdown and the Reactor Cooling System is being drained to mid-loop for replacing Reactor Coolant Pump seals. The time of shutdown was 10/31/06 at 0300.

At 0300 on 11/4/06, a complete loss of Shutdown Cooling occurred due to draining below the minimum level for Shutdown Cooling operations.

Estimate the MINIMUM time before MODE 4 conditions exist if initial RCS temperature is 110°F.

A 25 Minutes B 20 Minutes C 15 Minutes D 10 Minutes Answer C Explanation C is correct; 4 days after shutdown heatup rate would be 6°F/ min. Initial temp = 110°F, Mode 4 = 200°F, Delta T = 90°F, 90°F / 6°F/min = 15 minutes.

D is incorrect; 10 minute RCS temp would be 170°F < mode 4.

A and B are incorrect; Mode 4 would be exceeded before 20 and 25 minutes.

Comments Page 10 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 8 R06008 X Question Information Examination Outline Cross-Reference Previous Bank QID 6905-A OPS bank Level RO NRC Exam History N/A Tier/Group 1/1 Tech References OP-901-510 K/A 4.2-A26-AA1.07 Ref Supplied Att. 1 of OP-901-510 Imp. Rating 2.9 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-PP05 03 Proposed Question A Steam line break outside of containment has occurred. The crew manually initiated SIAS, CIAS and MSIS. The closure of the MSIVs isolated the break. CCW Surge Tank level switch, CC-ILS-7013A, fails low. The CRS directs entry into OP-901-510, Component Cooling Water System Malfunction.

Based on the above events, the crew should A secure all Reactor Coolant Pumps within 3 minutes.

B isolate the CCW Surge Tank makeup path.

C pull the overspeed trip on EDG A.

D start CCW Pump A/B.

Answer A Explanation A is correct; SIAS will isolate AB header from B train, the level switch will isolate AB header from the A Train. CCW flow lost to the RCPs will require securing RCP if flow is lost for 3 minutes.

B is incorrect; no guidance for isolating makeup path. Makeup pump will run for 3 minutes, then secure.

C is incorrect; EDGs are supplied from the safety headers and are NOT affected by loss of the AB header.

D is incorrect; no guidance for starting AB pump, and it does NOT directly supply the AB Header.

Comments Page 11 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 9 R06009 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References SD-PLC K/A 4.2-A27-AK1.01 Ref Supplied N/A Imp. Rating 3.1 Cognitive Level 2 10 CFR 55.41(b) 14 Learning Objective WLP-OPS-PLC00 07 Proposed Question Which ONE of the following will cause saturation temperature to rise in the Pressurizer?

A Pressurizer Spray Controller input fails high.

B Pressurizer Spray Controller output fails high.

C Pressurizer Pressure Controller output fails low.

D Pressurizer Pressure Controller setpoint fails low.

Answer C Explanation C is correct. Failing the output low sends a signal to energize the heaters, causing temperature/pressure to rise. As pressure rises, saturation temperature rises.

A and B are incorrect. These failures both cause the spray valves to open and lower pressure (saturation temperature drops).

D is incorrect. This failure would cause the current pressure to appear high, causing the controller output to rise and send a signal to open the spray valves.

Comments Page 12 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 10 R06010 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References SD-ATS00 K/A 4.1-E29-EK2.06 Ref Supplied N/A Imp. Rating 2.9 Cognitive Level 1 10 CFR 55.41(b) 6 Learning Objective WLP-OPS-ATS00 03 Proposed Question The Diversified Reactor Trip System performs its diversified trip function by opening the A Reactor Protection System trip relay backup contacts.

B Reactor Trip Breaker shunt trip contacts.

C CEDM MG supply breakers D CEDM MG set load contactors.

Answer D Explanation D is correct; SD-ATS00 states that DRTS opens the CEDM MG set load contactors.

A is incorrect; This is a plausible answer, but there are no back up RPS contacts.

B and C are incorrect; these actions would result in a reactor trip; however, SD-ATS00 states that DRTS opens the CEDM MG set load contactors.

Comments Page 13 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 11 R06011 X Question Information Examination Outline Cross-Reference Previous Bank QID 6043-A Level RO NRC Exam History 2003 NRC SRO Exam Tier/Group 1/1 Tech References OP-902-007; K/A 4.1-E38-EK1.01 Steam Tables Ref Supplied Steam Tables Imp. Rating 3.1 Cognitive Level 2 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPE07 09 Proposed Question A Steam Generator Tube Rupture has occurred in S/G 1, with a concurrent Loss Of Offsite Power (LOOP).

S/G 1 has been isolated at 550 psia. The CRS orders an RCS pressure reduction to 50 psi above S/G 1 pressure.

Assuming the ruptured S/G remains at 550 psia, what is the HIGHEST RCS temperature allowed, in order to maintain 28°F subcooled margin AND meet the CRS' instructions?

A 449°F using T-hot Loop 1.

B 449°F using Representative CET Temperature.

C 458°F using T-hot Loop 1.

D 458°F using Representative CET Temperature.

Answer D Explanation D is correct; 550 psia + 50 = 600 psia sat temp = 486°F, 486°F - 28°F = 458°F.

Representative CET temperature is used versus the affected loop T-hot.

A and B are incorrect; 449°F was determined by NOT adding the 50 psia to SG 1 pressure.

(550 psia = 477°F, 477°F - 28°F = 449°F)

C is incorrect; T-hot loop 1 is the affected loop.

Comments Old Q had the SG at 600 psia. Correct answer was 466°F.

Page 14 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 12 R06012 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References OP-902-004 K/A 4.4-E5-EK3.3 TG-OP-902-004 OI-038-000 Ref Supplied N/A Imp. Rating 3.8 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PPE04 07 Proposed Question OP-902-004, Excess Steam Demand Recovery, directs the operator to verify all available Charging Pumps are operating. Following an SIAS, starting the third Charging Pump A is NOT necessary and may actually complicate the event following steam generator dryout.

B protects the plant from a passive failure due to loss of one Charging Pump.

C provides necessary boric acid to prevent a loss of Shutdown Margin during a rapid cool down.

D provides necessary makeup to the RCS to restore inventory lost due to leakage or cool down.

Answer A Explanation A is correct; the Tech Guide confirms that this is NOT necessary. After SG dryout, the 3rd Charging Pump will add excessive inventory and complicate the crews control of Pressurizer level.

B and D are incorrect; after SG dryout, the 3rd Charging Pump will add excessive inventory and complicate the crews control of Pressurizer level.

C is incorrect; previous revisions of OP-902-004, starting the 3rd Charging Pump was desired (this was changed several years ago).

Comments Page 15 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 13 R06013 X Question Information Examination Outline Cross-Reference Previous Bank QID 2335-A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References SD-EFW K/A 4.4-E6-EK2.1 Ref Supplied N/A Imp. Rating 3.3 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-EFW00 05 Proposed Question An EFAS 1 signal will be present for which ONE of the following?

A S/G 1 is 20% NR, S/G 2 is 26.5% NR, S/G 1& 2 are 600 psia B S/G 1 is 30% NR, S/G 2 is 25% NR, S/G 1 is 700 psia, S/G 2 is 680 psia C S/G 1 is 15% NR, S/G 2 is 20% NR, S/G 1 is 200 psia, S/G 2 is 400 psia D S/G 1 is 5% NR, S/G 2 is 10% NR, S/G 1 is 500 psia, S/G 2 is 370 psia Answer D Explanation D is correct; S/G 1 level low (27.4% NR) AND S/G 1 pressure NOT low (>666psia) OR S/G1 level low (27.4% NR) AND DP between both S/Gs > 123psid with the higher pressure in S/G1 is a valid EFAS 1 signal.

A and C are incorrect; pressures are below 666 psia.

B is incorrect; EFAS 2 signal valid - NOT EFAS 1.

Comments Page 16 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 14 R06014 X Question Information Examination Outline Cross-Reference Previous Bank QID 5659-A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References OP-902-005 K/A 4.1-E55-G2.4.12 Ref Supplied N/A Imp. Rating 3.4 Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPE05 06 Proposed Question The following plant conditions exist:

• EDG B OOS for maintenance, due to ground in generator.

• Reactor trip due to Loss Of Offsite Power (LOOP).

• EDG A started, but immediately tripped on overspeed.

In accordance with OP-902-005, Station Blackout, if AC power is not expected to be restored within

_______ minutes, then __________ and __________.

A 15 / open Control Room and PAC doors / verify proper battery operation B 15 / replenish EDG air start receivers / reduce battery loads C 30 / open Control Room and PAC doors / reduce battery loads D 30 / verify proper battery operation / replenish EDG air start receivers Answer C Explanation C is correct. OP-902-005 steps 13 and 14 specify 30 minutes to verify ventilation and reduce battery loads.

A and B are incorrect. 30 minutes are allowed prior to steps, steps require verifying ventilation and reducing battery loads.

D is incorrect. Plausible due to Station Mod which added a portable generator to allow charging EDG air start receivers. No time limit in Step 12, plus 1 start should NOT deplete the receiver.

Comments Page 17 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 15 R06015 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References SD-EDG K/A 4.2-A56-AA2.38 Ref Supplied N/A Imp. Rating 3.7 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-SEQ00 02 Proposed Question Given the following conditions:

• A Loss of Offsite Power occurred 210 seconds ago.

• The A EDG sequencer Lockout light is illuminated; all A Train Sequencer load block lights are extinguished.

• The B EDG sequencer Lockout light is extinguished; all B Train Sequencer load block lights are illuminated.

All A train sequencers loads are ____________. All B train sequencer loads are _____________.

A energized; energized.

B de-energized; de-energized.

C energized; de-energized.

D de-energized; energized.

Answer D Explanation D is correct; the A sequencer lockout light illuminated indicates that all loads loaded prior to the 17 sec load block were stripped and the timer was reset which prevented loads from being sequenced on. All load blocks illuminated indicate loads sequenced on.

A and C are incorrect; the A sequencer failed to load due to a sequencer lockout.

B is incorrect; B sequencer loads loaded per design.

Comments Page 18 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 16 R06016 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References TGOP-902-008 K/A 4.2-A57-AK3.01 Ref Supplied N/A Imp. Rating 4.1 Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPE08 02 Proposed Question The main objective of the OP-902-008 Success Path MVA-DC-1, Battery Chargers/Station Batteries, is to maintain power to at least one DC train and ______ 120 VAC instrument bus(es) powered from

__________ side electrical distribution system.

A one; the same B one; any C two; the same D two; any Answer A Explanation A is correct; TGOP-902-008 identifies this in the Objective and Criteria for MVA-DC-1.

B is incorrect; the Criteria for MVA-DC-1 states that the electrical buses must be powered from the same side.

C is incorrect; the Objective for MVA-DC-1 states that one of each is the minimum required.

D is incorrect; the Objective for MVA-DC-1 states that one of each is the minimum required; the Criteria for MVA-DC-1 states that the electrical buses must be powered from the same side.

Comments Page 19 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 17 R06017 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/1 Tech References OP-901-313 K/A 4.2-A58-AA1.03 Ref Supplied N/A Imp. Rating 3.1 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-PPO30 04 Proposed Question Which of the following components may be operated from CP-1 following a loss of the TGB-DC Bus?

A Steam Bypass Control Valves B 2A(B) to 3A(B) Tie Breakers C Condensate Pumps D Main Feedwater Pumps Answer D Explanation D is correct; Stated in OP-901-313 p 31step 9 and in the preceding Caution.

A is incorrect; Stated in OP-901-313 p 30 Caution 4.

B and C are incorrect; OP-901-313 p 16 step C.4 states that all on the 7KV and 4KV TGB switchgear have no control power and are disabled.

Comments Original Q was a NOT question.

Page 20 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 18 R06018 X Question Information Examination Outline Cross-Reference Previous Bank QID 3318-B Level RO NRC Exam History 2002 NRC Reactor Tier/Group 1/1 Operator Makeup Exam Tech References OP-901-511 K/A 4.2-A65-AA2.06 Ref Supplied N/A Imp. Rating 3.6*

Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPO50 04 Proposed Question Given the following:

• The plant is at 100 % power.

• On CP-1, IA pressure is reading 60 psig and dropping slowly.

• The crew is implementing OP-901-511, Instrument Air Malfunction.

What action should be taken?

A Trip the main turbine and perform OP-901-101, Reactor Power Cutback, concurrently with this procedure.

B Trip the reactor and perform OP-902-000, Standard Post Trip Actions, concurrently with this procedure.

C Perform a rapid plant shutdown per OP-901-212, Rapid Plant Downpower.

D Perform a normal plant shutdown per OP-010-005, Plant Shutdown.

Answer B Explanation B is correct: OP-901-511 step E1, trip Rx if IA drops to 65 psig.

A, C and D are procedurally incorrect; all are valid methods for reducing power or shutting down the plant, making them valid distractors.

Comments Page 21 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 19 R06019 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References TS 1.28, TS 3.1.3.1, K/A 4.2-A5-AK3.04 TS & Bases 3.1.1 Ref Supplied N/A Imp. Rating 3.4 Cognitive Level 1 10 CFR 55.41(b) 2 Learning Objective WLP-OPS-CED00 07 Proposed Question Technical Specifications requires a prompt Shutdown Margin calculation for a Control Element Assembly (CEA) that is A mechanically bound because another CEA is assumed to be mechanically bound.

B mechanically bound to ensure that fuel performance and offsite dose criteria are satisfied.

C misaligned by 15 inches because another CEA is assumed to be mechanically bound.

D misaligned by 15 inches to ensure that fuel performance and offsite dose criteria are satisfied.

Answer A Explanation A is correct. Basis for 3.1.3.1 relates a stuck CEA to a loss of SDM. The TS definition for SDM assumes one CEA stuck fully withdrawn.

B is incorrect. Basis for 3.1.1.1 relates this to fuel depletion and RCS temperature.

C is incorrect. 3.1.3.1 requires CEA misaligned >19 inches.

D is incorrect. Basis for 3.1.1.1 relates this to fuel depletion and RCS temperature.

Comments Page 22 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 20 R06020 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References OP-901-103, SD-CVC K/A 4.2-A24-AK2.04 Ref Supplied N/A Imp. Rating 2.6 Cognitive Level 2 10 CFR 55.41(b) 8 Learning Objective WLP-OPS-PPE01 10 Proposed Question Plant conditions are as follows:

• Emergency Boration has been manually initiated due to NOT meeting Shutdown Margin.

• The operator has chosen to use Boric Acid Makeup Pump B as the borated water source.

• All 3 Charging Pumps are in operation.

Emergency Boration flowrate to the Reactor Coolant System will be LEAST affected by a complete loss of the ____ 4.16 KV Safety Bus with the AB Buses aligned to the ____ side.

A A; A B A; B C B; B D B; A Answer D Explanation D is correct. The A and AB Charging Pumps will remain energized (88 gpm flow). BAMP B will remain energized (A train power) to provide a suction path.

A and B are incorrect. BAMP B will lose power (A train power). With BAMP B de-energized under the above conditions, the Charging Pumps will NOT have a suction path.

C is incorrect. Only the A Charging Pump will remain energized (44 gpm flow). BAMP B will remain energized (A train power) to provide a suction path.

Comments Page 23 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 21 R06021 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References SD-ENI K/A 4.2-A33 AK1.01 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 2 Learning Objective WLP-OPS-ENI00 06 Proposed Question Following maintenance on Excore Nuclear Instrumentation C Log Safety Channel, the pulse height discriminator voltage was left at too high a setting, causing a higher discriminator threshold level.

Following a reactor trip, this condition will automatically bypass the Channel C ____________ at an actual reactor power level __________ than designed.

A High Log Power Trip; higher B High Log Power Trip; lower C CPC-generated CWP; higher D CPC-generated CWP; lower Answer C Explanation C is correct. See SD pages 15 & 26, CPC-generated CWP is automatically bypassed as power lowers below 10-4% power. Raising discriminator voltage causes indicated power to be lower than actual power; therefore, the 10-4% bistable will be reached sooner.

A and B are incorrect. High Log Power Trip bypass is removed as power lowers below 10-4% power.

D is incorrect. Actual power will be higher - NOT lower.

Comments Page 24 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 22 R06022 X Question Information Examination Outline Cross-Reference Previous Bank QID 4645-A Level RO NRC Exam History 2002 Tier/Group 1/2 Tech References OP-002-010 K/A 4.2-A36-AA1.01 Ref Supplied N/A Imp. Rating 3.3 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-HVR00 03 Proposed Question Given the following:

• The plant is in MODE 6 with fuel shuffle in progress in both the Fuel Handling Building and Containment.

• Containment Purge is in the Refueling Mode.

• A fuel bundle is dropped from the Refueling Machine Fuel Hoist.

Which ONE of the following radiation monitors can detect the event AND terminate the radioactive gas release?

A Containment High Radiation Area Monitor, ARM-IRE-5400A.

B Containment Purge Area Radiation Monitor, ARM-IRE-5024.

C Refueling Machine Area Radiation Monitor, ARM-IRE-5013.

D Fuel Handling Building Isolation Monitor, ARM-IRE-0300.1.

Answer B Explanation B is correct. SD-RMS states that this monitor will isolate Containment Purge on high radiation.

A is incorrect. SD-RMS states that this monitor provides annunciation in the Containment and Control Room, but no automatic functions.

C is incorrect. This monitor has no automatic functions, and will NOT terminate the release.

D is incorrect. SD-RMS states that this monitor will isolate Fuel Handling Building (FHB) ventilation on high radiation. With a fuel bundle dropped from the Refueling Machine Fuel Hoist, the high radiation will be in the Containment and NOT the FHB.

Comments Page 25 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 23 R06023 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References CE-003-514 K/A 4.2-A59-AA2.02 Ref Supplied N/A Imp. Rating 2.9 Cognitive Level 1 10 CFR 55.41(b) 13 Learning Objective WLP-OPS-RMS00 04 Proposed Question The plant is at 100% power with 3 Circulating Water pumps running. The liquid release permit below is for the batch release currently in progress.

Assuming the release is NOT terminated, which ONE of the following conditions constitutes an accidental liquid release?

A Dry Cooling Tower Sump #2 pumps to Circ Water.

B One Circ Water pumps trips.

C The Boric Acid Condensate Discharge radiation reading indicates 6.4 e-07 ci/ml and then returns to 5.3 e-06 ci/ml after two minutes.

D The Boric Acid Condensate Discharge radiation reading indicates 6.4 e-04 ci/ml and then returns to 5.3 e-05 ci/ml after two minutes.

Page 26 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Answer D Explanation D is correct. Radiation level rises above the High Alarm setpoint of 3.41 e-05 ci/ml.

A is incorrect. This release permit may be run with the 3 others listed.

B is incorrect. The number of Circ Water pumps drops to 2, which meets the limit set by this permit.

C is incorrect. The radiation level remains below the High Alarm setpoint of 3.41 e-05 ci/ml.

Comments Page 27 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 24 R06024 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References TS 3.6.1.1, 3.6.1.3, and K/A 4.2-A69-AA2.01 3.6.3 Ref Supplied N/A Imp. Rating 3.7 Cognitive Level 1 10 CFR 55.41(b) 9 Learning Objective WLP-OPS-CB00 07 Proposed Question With the plant at 100%, the STA performed leakage rate testing of the Personnel Air Locks and determined that the inner door seal exceeded the allowable leakage requirements.

The pre-job brief to the investigation/repair team should include the following discussion:

The investigation/repair team has A one hour from the time of discovery to repair the inner door to prevent a forced plant shutdown.

B four hours from the time of discovery to repair the inner door to prevent a forced plant shutdown.

C one hour from the time they open the outer door to re-close the outer door to prevent a forced plant shutdown.

D four hours from the time they open the outer door to re-close the outer door to prevent a forced plant shutdown.

Answer C Explanation C is correct. This requirement is consistent with the combined actions of TS 3.6.1.1 and 3.6.1.3.

A is incorrect; but plausible due to similarities with TS 3.6.1.1.

B and D are incorrect; but plausible due to similarities with TS 3.6.3.

Comments Page 28 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 25 R06025 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References OP-902-005; K/A 4.1-E74-EK2.06 TG-OP-902-005 Ref Supplied N/A Imp. Rating 3.5

• Cognitive Level 1 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PPE05 02 Proposed Question During a Station Blackout the __________________________________ ensure that Inadequate Core Cooling conditions are avoided.

A Atmospheric Dump Valves and the Main Steam Safety Valves.

B Atmospheric Dump Valves and the Pressurizer Safety Valves.

C Steam Bypass Valves and the Main Steam Safety Valves.

D Steam Bypass Valves and the Pressurizer Safety Valves.

Answer A Explanation A is correct. Steps 7-9 of OP-902-005.

B is incorrect. Pressurizer Safety Valves will protect RCS integrity, but will NOT provide cooling to the core.

C and D are incorrect. Steam Bypass Valves are NOT available during a SBO.

Comments Page 29 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 26 R06026 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References SD-SDC K/A 4.4-A16-G2.4.10 OP-500-011, A-7 OP-500-012, A-17 & K-20 Ref Supplied N/A Imp. Rating 3.0 Cognitive Level 2 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-SDC00 01 Proposed Question Plant conditions are as follows:

• RCS temperature is 340°F.

• RCS pressure is 380 PSIA.

• SDC Train A is in service.

• Low Temperature Overpressure Protection Relief Valve, SI-406B, is isolated for repairs (SI-401B, SI-405B, and SI-407B are closed).

Of the following Annunciators, which will you receive following an inadvertent re-pressurization of the RCS that causes Low Temperature Overpressure Protection Relief Valve, SI-406A, to lift?

A. LOOP 1 SDC RELIEF VLV ACTIVE (Cabinet N, A-17)

B. LOOP 2 SDC RELIEF VLV ACTIVE (Cabinet M, A-7)

C. CONTAINMENT WATER LEAKAGE HI-HI (Cabinet N, K-20)

A A only B B only C A and C D B and C Answer B Explanation B is correct. SI-406A is on Loop 2 SDC and it relieves directly to the Containment Sump bypassing the Containment Water Leakage detector.

A is incorrect. Loop 1 actuates if SI-406B lifts.

C and D are incorrect. K-20 is NOT actuated since the flow bypasses the detector.

Comments Page 30 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Page 31 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 27 R06027 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 1/2 Tech References OP-902-008, K/A 4.4-E9-EK3.2 TGOP-902-008 Ref Supplied N/A Imp. Rating 3.0 Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPE08 02 Proposed Question OP-902-008 Success Path IC-2, RCS Inventory Control with Safety Injection, provides instructions to makeup to _______ if an RAS has occurred due to a possible A the RWSP; Safety Injection Sump blockage.

B the RWSP; high radiation level in the RWSP.

C a BAMT; need for Auxiliary Spray.

D a BAMT; need for Emergency Boration.

Answer A Explanation A is correct; TGOP-902-008 for step 10 of OP-902-008 Success Path IC-2, RCS Inventory Control with Safety Injection.

B is incorrect; step 12 of the Tech Guide lists this as the reason for closing the SI Pump Recirc Valves.

C and D are incorrect; step 2 of OP-902-008 includes verifying ALL available Charging Pumps operating, but no instruction to refill BAMTs is mentioned.

Comments Page 32 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 28 R06028 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-901-130 K/A 3.4-003-A1.09 WLP-OPS-PPO10 Ref Supplied N/A Imp. Rating 2.8 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-RCP00 05 Proposed Question The plant is operating at 100% power when the ATC observes the following RCP 2A seal parameters:

• Vapor Seal pressure: 70 psia

• Upper Seal pressure: 70 psia

• Middle Seal pressure: 1250 psia

• RCP controlled bleed-off: 2.2 gpm Using the above parameters, determine which seal has failed.

A Lower seal B Middle seal C Upper seal D Vapor seal Answer C Explanation C is correct. Middle seal pressure approximately equal to upper seal pressure indicates upper seal failure. RCP Seal pressure and Control Bleedoff temperature and flow are normally: Vapor Seal pressure

- 25 to 45 PSIG; Upper Seal pressure - 585 to 915 PSIG; Middle Seal pressure - 1237 to 1815 PSIG CBO temperature - 135° to 190°F; CBO flow - 1.2 to 1.8 GPM A, B, and D are incorrect; middle seal pressure approximately equal to upper seal pressure indicates upper seal failure.

Comments Page 33 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 29 R06029 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-CVC, OP-002-005 K/A 3.2-004-K6.05 Ref Supplied N/A Imp. Rating 2.5 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-CVC00 03 Proposed Question The plant is operating at 90% power when CVC-ITIC-0223, temperature input to Letdown TCV CC-636, fails high. What effect will this malfunction have?

A VCT boron concentration lowers.

B Ion exchangers will be bypassed.

C Flashing will occur upstream of the Letdown heat exchanger.

D CCW flow through the Letdown Heat Exchanger will exceed 1300 gpm.

Answer A Explanation A is correct; High failure will send signal to raise CCW flow through the Letdown Heat Exchanger, causing letdown temperature to lower causing a dilution of the RCS.

B is incorrect; Ion exchanger bypass signal is generated from CVC ITE-0224 (separate from 0223) lower letdown temperature will NOT result in demineralizer bypass.

C is incorrect; Flashing upstream of the Letdown Heat Exchanger will result from a malfunction of the Letdown pressure control valve.

D is incorrect; CC-636 is gagged to limit CCW flow to 1200 gpm Comments Page 34 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 30 R06030 X Question Information Examination Outline Cross-Reference Previous Bank QID 5695-N Level RO NRC Exam History 1999/2002 NRC exam Tier/Group 2/1 Tech References SD-RCS K/A 3.4-005-K5.05 Ref Supplied N/A Imp. Rating 2.7*

Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-RCP00 12 Proposed Question The following conditions exist:

• RCS is filled and vented and the PZR is solid

• RCS pressure is being controlled by both letdown backpressure control valves

• RCS pressure = 370 psia

• CET temperature = 130°F

• Steam Generator 1 water temperature = 220°F

• All RCPs are secured When starting RCP 1A under these conditions A RCS pressure will rise above the setpoint of the LTOP reliefs; the combined capacity of BOTH LTOP reliefs is required to protect the RCS from overpressure.

B RCS pressure will lower but be controlled by the letdown backpressure control valves above the minimum pressure for running the RCP.

C RCS pressure will rise above the setpoint of the LTOP reliefs; the RCS is protected from overpressurization by the capacity of ONE LTOP relief.

D RCS pressure will lower below the pressure for operating a RCP causing cavitation of the RCP and possible damage to the impeller and seals.

Answer C Page 35 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Explanation C is correct; one LTOP capacity is designed to relieve the pressure transient caused by the start of an idle RCP with secondary water temperature of the steam generator less than or equal to 100 °F above RCS cold leg temperatures.

A is incorrect; only one LTOP required.

B and D are incorrect; S/G temp above RCS would result in an RCS temp and press rise.

Comments Page 36 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 31 R06031 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-901-112 K/A 3.2-006-K1.08 Ref Supplied N/A Imp. Rating 3.6 Cognitive Level 2 10 CFR 55.41(b) 6 Learning Objective WLP-OPS-SI00 02 Proposed Question Given the following conditions:

• The plant is at 100% power.

• A rupture of the charging line has occurred.

• Charging Pumps Header Isolation Valve (CVC 209) is isolated

• Letdown is isolated.

• Pressurizer level is 48% and lowering slowly.

The CRS should direct aligning charging pump discharge to.

A HPSI Header B and use Hot Leg Injection.

B HPSI Header B and use Cold Leg Injection.

C HPSI Header A and use Hot Leg Injection.

D HPSI Header A and use Cold Leg Injection.

Answer D Explanation D is correct; OP-901-112 directs if normal charging path can NOT be re-established to align charging pump discharge to HPSI Header A and use Cold Leg Injection.

A, B are incorrect; no procedural guidance exists for raising PZR level using Aux spray and RCP seal injection.

C is incorrect; CVCS system interconnection is through HPSI Header A.

Comments Page 37 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 32 R06032 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-902-002 K/A 3.2-006-A3.05 TG-OP-902-002 Ref Supplied N/A Imp. Rating 4.2 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-PPE02 18 Proposed Question Plant conditions are as follows:

• A Large Break LOCA has occurred

• An RAS has occurred two hours ago

• HPSI Pump A Header Pressure is fluctuating between 500 and 700 psia

• HPSI Pump B Header Pressure is fluctuating between 650 and 700 psia Based on these conditions, the operator should A throttle down on ONE HPSI flow control valve at a time until pressure fluctuations subside.

B throttle down on ALL HPSI flow control valves until pressure fluctuations subside.

C secure HPSI Pump A.

D secure HPSI Pump B.

Answer C Explanation C is correct; Step 45 of OP-902-002 directs verifying no more than one HPSI pump operating with fluctuating parameters. The TG for Step 45 directs securing the most affected pump.

A and B are incorrect; throttling FCVs could reduce fluctuations; however, Step 45 of OP-902-002 directs verifying no more than one HPSI pump operating with fluctuating parameters.

D is incorrect; the TG for Step 45 directs securing the most affected pump.

Comments Page 38 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 33 R06033 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-902-002, K/A 3.2-013 A1.01 OP-902-009 Att. 3-B SD-SI Ref Supplied OP-902-009 Att. 3-B Imp. Rating 4.0 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PPE02 17 Proposed Question Plant conditions are as follows:

• A Small Break LOCA has occurred outside Containment

• The LOCA has been isolated

• SIAS/CIAS have been reset

• A controlled plant cooldown is in progress to establish shutdown cooling conditions

• RCS Temperature is 430°F

• RCS Pressure is 950 psia The Safety Injection Tanks should _______________ in order to A remain aligned for injection; ensure availability of a borated water source.

B remain aligned for injection; protect the plant against a Large Break LOCA.

C be isolated; ensure that the steam generators remain effective heat sinks.

D be isolated; protect the plant against pressurized thermal shock.

Answer C Explanation C is correct. Step 46 of OP-902-002 directs isolating the SITs when < 1000 psia under controlled conditions. The TG for this step states that it is to avoid gas binding the SGs.

A and B are incorrect. The SD states that SITs are used to supply borated water to the reactor vessel during the blowdown phase of a LB LOCA. The TG for this step states that this protection is NOT required below 1000 psia.

D is incorrect. The SITs would inject a large volume of cold water into the RCS if pressure were reduced far enough, but this is NOT mentioned as a major concern in the TG.

Comments Page 39 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Page 40 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 34 R06034 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-CC K/A 3.8-008-K2.02 Ref Supplied N/A Imp. Rating 3.0*

Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-CC00 03 Proposed Question Plant conditions are as follow:

• Plant is at 100% power.

• CCW Pumps A and AB are operating.

• CCW Pump AB is replacing B with AB assignment switch in the "B" position.

• CCW Pump B is in standby

• AB bus is powered from the A train.

• A loss of the 2A electrical bus occurs.

• All equipment responds per design.

What is the status of the CCW pumps one minute later, assuming NO operator actions are taken?

A Only CCW pump A is running B Only CCW pump B is running C CCW Pumps A and B are running D CCW Pumps A and AB are running Answer A Explanation A is correct; the 3A bus normally receives power from the 2A bus and will lose power in this case. EDG A will start and restore power to the 3A and 3AB buses (AB bus is aligned to A). The A CCW will atuo start when the 3A bus is restored, but the 3AB CCW Pump will NOT auto start since its assignment switch is in the B position.

B and C are incorrect; B CCW pump will NOT auto start with AB assignment switch in the B position D is incorrect; The A CCW will auto start when the 3A bus is restored, but the 3AB CCW Pump will NOT auto start since its assignment switch is in the B position.

Page 41 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Comments Page 42 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 35 R06035 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-PLC, OP-901-120 K/A 3.3-010-K3.03 Ref Supplied N/A Imp. Rating 4.0 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-PLC00 07 Proposed Question Selected Pressurizer pressure controller INPUT has failed to 2500 psia.

Assuming NO operator actions, Pressurizer pressure will________; resulting in __________

A Rise, a CPC RCS Pressure Aux Trip.

B Lower, Safety Injection Actuation Signal.

C Rise, a Pressurizer Pressure HI Reactor Trip.

D Lower, ALL Pressurizer Heaters energizing.

Answer B Explanation B is correct; pressure control input failing to 2500 psia will result in heaters being de-energized and spray valves opening. If left unchecked, pressure will lower until the SIAS setpoint is reached.

A and C are incorrect; RCS pressure will lower.

D is incorrect; pressurizer heaters will NOT energize.

Comments Page 43 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 36 R06036 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-PPS Figure 04 K/A 3.7-012-A3.04 Ref Supplied N/A Imp. Rating 2.8*

Cognitive Level 2 10 CFR 55.41(b) 6 Learning Objective WLP-OPS-PPS00 01 Proposed Question Which combination of Reactor Trip Circuit Breakers (TCBs) being OPEN will DIRECTLY result in the full insertion of ALL CEAs?

A TCB-2, TCB-3, TCB-6, TCB-8 B TCB-3, TCB-4, TCB-5, TCB-6 C TCB-3, TCB-4, TCB-7, TCB-8 D TCB-5, TCB-6, TCB-7, TCB-8 Answer A Explanation A is correct. TCBs-2 & 8 de-energize half the CEAs and TCBs-3&6 de-energize the other half.

B is incorrect. De-energizes half of the CEAs.

C and D are incorrect. Both halves remain energized.

Comments Page 44 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 37 R06037 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-CPC K/A 3.7-012-K6.09 Ref Supplied N/A Imp. Rating 3.6 Cognitive Level 2 10 CFR 55.41(b) 6 Learning Objective WLP-OPS-CPC00 07 Proposed Question With the plant at 100% power, which ONE of the following conditions will result in an immediate reactor trip?

A CEANOP 2 is entered on all CPCs and CEAC 1 fails.

B CEANOP 3 is entered on all CPCs and CEAC 1 fails.

C CEANOP 2 is entered on all CPCs and RG 5 CEAs are at 100 withdrawn and RG 6 CEAs are at 102 withdrawn.

D CEANOP 3 is entered on all CPCs and RG 5 CEAs are at 100 withdrawn and RG 6 CEAs are at 102 withdrawn.

Answer C Explanation C is correct. CEANOP 2 is a manual input that tells CPCs that CEAC 2 is inoperable. CEAC 1 is in operation and will send an out-of-sequence penalty factor of 8, which will result in CPC DNBR & LPD trip signals to RPS.

A is incorrect. CEAC 2 is inoperable. CEAC 1 failing will send a large penalty factor of 7 to the LPD &

DNBR trips, but it has a 90 minute time delay.

B is incorrect. CEANOP 3 tells CPCs that both CEAC 1 and 2 are inoperable. CEAC 1 failing is inconsequential.

D is incorrect. When CEANOP 3 is entered into CPCs, the CPCs sets all target CEA positions to ARO.

Comments Page 45 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 38 R06038 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References WLP-OPS-MCD03 K/A 3.2-013-K3.01 Ref Supplied N/A Imp. Rating 4.4 Cognitive Level 1 10 CFR 55.41(b) 2 Learning Objective WLP-OPS-MCD03 01 Proposed Question Following a large break LOCA with a failure of ESFAS to automatically initiate SIAS, the ________

temperature could exceed its melting threshold of __________ without operator intervention.

A clad; 2200°F B clad; 3350°F C fuel; 2750°F D fuel; 3350°F Answer B Explanation B is correct; 3350°F is the melting temperature of the zircaloy clad.

A is incorrect; 2200°F is the temperature when zirc hydriding becomes self-sustaining.

C is incorrect; 2750°F is the temperature when zirc hydriding is 5 times that at 2200°F.

D is incorrect; 3350°F is the melting temperature of the zircaloy clad (fuel melts at 5080°F).

Comments Page 46 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 39 R06039 X Question Information Examination Outline Cross-Reference Previous Bank QID 2508-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References T.S 3.6.2.2, 3.0.3 K/A 3.5-022-A2.01 Ref Supplied TS 3.6.2.2 Imp. Rating 2.5 Cognitive Level 1 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-CCS00 07 Proposed Question The following initial conditions exist:

• Plant is in MODE 1.

• CFC B is out of service for breaker maintenance.

• CFC D has just tripped on overcurrent.

What Technical Specification action is required?

A NO Tech Spec action required.

B Restore at least ONE of the inoperable fans to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

C Restore BOTH of the inoperable fans to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

D Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, action shall be initiated to place the unit in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

Answer B Explanation B is correct; with B and D CFC inoperable, TS 3.6.2.2 action statement is NOT met - no operable containment fan for that train.

A is incorrect; action must be taken to restore one train to operable within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, C and D are incorrect; only one fan per train is required for operability. TS 3.0.3 is NOT required, A train of containment cooling is operable.

Comments Page 47 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 40 R06040 X Question Information Examination Outline Cross-Reference Previous Bank QID 5982-A Level RO NRC Exam History 2002 NRC RO Makeup Tier/Group 2/1 Tech References SD-CC K/A 3.5-022-A4.04 Ref Supplied N/A Imp. Rating 3.1 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS- CCS00 04 Proposed Question Containment Fan Coolers B, C, and D are running in Fast.

Panel B Annunciator F-1, TRN A CNTMT COOLER VLV POWER LOST, goes into alarm.

The BOP reports Containment Fan Cooler A and C CCW Containment Isolation Valves (all four) indicate no power. The RAB watch reports breaker CCS-EBKR-60A-17 is in the trip-free position.

Actual valve position for CFC A is ______; actual valve position for CFC C is_______.

A Closed; Closed B Open. Closed C Closed; Open D Open; Open Answer D Explanation D is correct; CFC TCV CC-835A and the 4 CFC Train A isolation valves for CFC A and CFC C are energized to close from circuit 17 of PDP-60A. (CC-835A position is only available on the PMC.)

A is incorrect; plausible, if fail-close AOV.

B is incorrect; sequence makes this choice plausible.

C is incorrect; plausible, if fail as-is MOV.

Comments Original Q asked for expected flow. K/A is for monitoring CCS valves.

Page 48 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 41 R06041 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-CC K/A 3.5-026-K1.02 Ref Supplied N/A Imp. Rating 4.1 Cognitive Level 1 10 CFR 55.41(b) 8 Learning Objective WLP-OPS-CC00 05 Proposed Question A CSAS has occurred; CC-963-A, SHUTDOWN HEAT EXCHANGER A CCW FLOW CONTROL will

________ and can be overridden to ____________.

A OPEN, STPT B OPEN, CLOSE C CLOSE, STPT D CLOSE, OPEN Answer A Explanation A is correct; CC-963A goes full open in response to a CSAS actuation, and can be overridden by taking C/S to open then to setpoint.

B is incorrect; Close can NOT be used until CSAS is reset.

C and D are incorrect; CC-963A goes full open in response to a CSAS actuation.

Comments Page 49 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 42 R06042 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-005-004 K/A 3.4-039-K5.01 Ref Supplied N/A Imp. Rating 2.9 Cognitive Level 2 10 CFR 55.41(b) 14 Learning Objective WLP-OPS-MS00 08 Proposed Question A pressure surge resulting from a rapid change in fluid momentum in the Main Steam system can be prevented by which ONE of the following?

A Ensuring < 250 psid across MS-124A, Main Steam Isolation Valve, prior to opening.

B MS-119A, MSIV 1 Upstream Drip Pot Startup Drain, is cycled during startup of the Main Steam system.

C Locally throttling Open MS-1246A, MSIV 1 Bypass Line Downstream Isolation valves, after MSIVs are opened.

D Verifying SBCS control switches are in manual with setpoint adjusted to zero prior to pressurizing main steam system.

Answer B Explanation B is correct; upstream drip pot startup drain is cycled during startup to remove condensate from main steam system.

A is incorrect; OP-005-004 requires <100 psid prior to opening MSIV.

C is incorrect; bypass line drains are opened prior to MSIVS opened.

D is incorrect; SBCS are verified to be in AUTO prior to pressurizing main steam system.

Comments Page 50 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 43 R06043 X Question Information Examination Outline Cross-Reference Previous Bank QID 5648-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-901-201, SD-FWC K/A 3.4-059-A2.03 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PPO20 03 Proposed Question The plant is at 12% power when a S/G level control channel deviation occurs due to a failed level instrument on the #1 S/G.

In accordance with OP-901-201 "Steam Generator Level Control System Malfunction", the BOP will manually adjust the A _______________ to maintain #1 S/G level in the program band.

A Startup Feedwater Regulating Valve Controller.

B Main Feedwater Regulating Valve Controller.

C Main Feedwater Pump Speed Controller.

D FWCS Master Controller.

Answer A Explanation A is correct; At low power, OP-901-201 directs manually adjusting S/U reg valve controller to maintain S/G water level.

B is incorrect; MFW reg valve would NOT be used due to finer control being within capacity of S/U reg valve to maintain S/G level at 12% power.

C and D are incorrect; OP-901-201 directs manually adjusting feed reg valve position to control S/G level, adjusting speed controller(s) would affect level on both S/Gs.

Comments Page 51 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 44 R06044 X Question Information Examination Outline Cross-Reference Previous Bank QID 2338-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-902-006, SD-EFW K/A 3.4-061-K1.03 Ref Supplied N/A Imp. Rating 3.5 Cognitive Level 2 10 CFR 55.41(b) 4 Learning Objective WLP-OPS-EFW00 05 Proposed Question EFW Pump AB has tripped due to mechanical overspeed.

Which ONE of the following actions will allow the Stop Valve to be reopened from the Control Room, without causing another overspeed?

A Close both MS-401A and MS-401B, depressurize the steam header, then close and reopen MS-416.

B Close MS-416 to remotely reset the overspeed trip, reopen MS-416 slowly.

C Close MS-401A, MS-401B, and MS-416, depressurize the steam header, reset the trip locally, and then reopen MS-416.

D Close Governor Valve MS-417 locally, reset the overspeed trip locally, then reopen MS-416.

Answer C Explanation C is correct; Must reset mechanical trip locally, and must isolate steam or overspeed may reoccur.

A and B are incorrect: Must reset mechanical trip locally. Electrical trip IS reset by closing MS-416.

D is incorrect; the governor valve is hydraulically operated and closes as turbine speed rises.

Comments Page 52 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 45 R06045 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-ID K/A 3.6-062-K4.10 Ref Supplied N/A Imp. Rating 3.1 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-ID00 04 Proposed Question Given the following:

• SUPS A Manual Bypass Switch is in the NORMAL position.

• An overcurrent condition occurs on the inverter and clears.

SUPS A loads are being supplied by ____________ input and will be supplied by ____________ input 30 seconds from now A BYPASS, BYPASS B BYPASS, NORMAL C EMERGENCY, NORMAL D EMERGENCY, EMERGENCY Answer B Explanation B is correct; Static transfer switch will transfer to BYPASS on an Overcurrent condition and transfer back to NORMAL when the overcurrent condition clears with a 30 second time delay.

A is incorrect; transfer switch will transfer back in 30 seconds.

C is incorrect; SUPS will transfer to BYPASS on overcurrent condition.

D is incorrect; EMERGENCY is only aligned in the event NORMAL and BYPASS are unavailable.

Comments Page 53 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 46 R06046 X Question Information Examination Outline Cross-Reference Previous Bank QID 82-B Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-500-003, SD-DC K/A 3.6-063-K4.04 Ref Supplied N/A Imp. Rating 2.6?

Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-DC00 06 Proposed Question The following conditions exist in the plant:

• 100% power, steady-state operations.

• The AB bus is aligned to the A side.

• No equipment is Out Of Service.

• The BATTERY CHGR SA1 TROUBLE annunciator comes in on CP-35 in the Control Room.

• The RAB Watch is sent to the A Switchgear to investigate.

Which ONE of the following could be a source of the annunciator?

A The Hi Voltage light is lit with output voltage indicating 134 VDC.

B A Low Voltage Shutdown occurred at 124 VDC.

C The Lo Voltage light is lit with output voltage indicating 134 VDC.

D A High Voltage Shutdown occurred at 144 VDC.

Answer D Explanation D is correct; the high voltage shutdown occurs at 144 VDC which will generate annunciator alarm.

A is incorrect; setpoint for hi voltage is 142 VDC.

B is incorrect; Low voltage generates an alarm but NOT a shutdown.

C is incorrect; low voltage alarm setpoint is 128 VDC which is below current voltage.

Comments Page 54 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 47 R06047 X Question Information Examination Outline Cross-Reference Previous Bank QID 35-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-SDC K/A 3.4-005-A4.01 Ref Supplied N/A Imp. Rating 3.6*

Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-REQ13 01 Proposed Question The Low Pressure Safety Injection (LPSI) Pump Minimum Flow Recirculation Stop Check Valve

[SI-116A(B)] must be _______ prior to placing the Shutdown Cooling System in service to A open; ensure minimum flow through the LPSI Pump to the Chemical and Volume Control System.

B open; ensure minimum flow through the LPSI Pump to the Refueling Water Storage Pool.

C closed; prevent loss of Reactor Coolant System inventory to the Chemical and Volume Control System.

D closed; prevent loss of Reactor Coolant System inventory to the Refueling Water Storage Pool.

Answer D Explanation D is correct. SD-SDC p 8 confirms this.

B is incorrect. SD-SDC p 9 confirms that the Minimum Flow Recirculation Valve is closed when aligned to RWSP.

A and C are incorrect; Recirc valve flows to the RWSP, NOT the VCT.

Comments Page 55 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 48 R06048 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-EDG, OP-009-002 K/A 3.6-064-K4.02 Ref Supplied N/A Imp. Rating 3.9 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-EDG00 02 Proposed Question Given the following conditions:

• EDG A is currently running loaded IAW OP-903-068, Emergency Diesel Generator and Subgroup Relay Operability Verification.

• EDG B is in standby

• A SIAS has occurred with NO Loss of offsite power A(n) _________________ trip signal will trip..

A low engine lube oil pressure; neither EDG A nor EDG B B low engine lube oil pressure; EDG A but NOT EDG B C engine overspeed; neither EDG A nor EDG B D engine overspeed; EDG A but NOT EDG B Answer A Explanation A is correct; SIAS signal will shift both EDGs to emergency mode, and block low oil pressure trip.

B is incorrect; valid trip for normal mode but defeated in emergency mode.

C and D are incorrect; Engine overspeed will cause an automatic shutdown in all modes.

Comments Page 56 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 49 R06049 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-901-401 K/A 3.7-073-A2.02 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 11 Learning Objective WLP-OPS-PPO40 03 Proposed Question During normal operations, CROAI 'B' South (0200.6) goes into high alarm. All other CROAI radiation monitors indicate normal readings.

Under this condition, __________ CR Emergency Filtration Unit(s) should start. The investigation reveals that the high alarm is due to a detector failure and cannot be repaired for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. The operating crew may use OP-901-401, Airborne Activity in Control Room, to supply outside air to the Control Room through

_____________ Outside Air Intake valves.

A one; any of the B one; only the North C both; any of the D both; only the North Answer A Explanation A is correct; OP-901-401 step C.2 indicates that the B CR EFU will start, and Caution prior to step 8 states that you must establish positive pressure w/in 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of initiation of an actual event.

B is incorrect; Caution prior to step 8 states that you must establish positive pressure w/in 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of initiation of an actual event.

C and D are incorrect; only the B CR EFU will start.

Comments Page 57 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 50 R06050 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-CCW Figs 2, 3, 12 K/A 3.7-073-G2.4.48 SD-SDC, Fig 2 Ref Supplied N/A Imp. Rating 4.0 Cognitive Level 2 10 CFR 55.41(b) 12 Learning Objective WLP-OPS-PPO40 03 Proposed Question The following plant conditions exist:

• Plant is in Mode 5

• Shutdown Cooling (SDC) Trains A and B are service

• SDC Purification is in service from SDC Train A

• Reactor Coolant Pump 1A is in service

• Fuel Pool Cooling is in service through the Primary Heat Exchanger

• CCW Surge Tank is at 100%

• Waste Tank A level is rising

• CCW Radiation Monitor A is in High Alarm and rising

• CCW Radiation Monitor B is in Alert Alarm and rising

• CCW Radiation Monitor AB is rising within the normal band In order to stop the inleakage into the Component Cooling Water System the CRS should direct securing and isolating A SDC Train A B SDC Purification C Reactor Coolant Pump 1A D Fuel Pool Cooling Answer A Page 58 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Explanation A is correct; SDC Train A is in the A Safety Header, which will provide the highest reading in the A CCW RM.

B and D are incorrect; these heat exchangers are in the AB Header downstream of the AB CCW RM. A leak into these heat exchangers should have similar effects in both the A and B CCW RMs.

C is incorrect; CCW from the RCPs is directed to the AB CCW RM. An RCP seal leak will be indicated by a high reading in this RM.

Comments Page 59 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 51 R06051 X Question Information Examination Outline Cross-Reference Previous Bank QID 7045-A OPS Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-TCW K/A 3.4-076-A1.02 Ref Supplied N/A Imp. Rating 2.6*

Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-TC00 04 Proposed Question As the Plant ramps to 100% power, the operator maintains TCW temperature and pressure constant by throttling the TCV___________ and throttling the PCV __________.

A OPEN, OPEN.

B CLOSED, CLOSED.

C OPEN, CLOSED.

D CLOSED, OPEN.

Answer C Explanation C is correct: ramping up raises heat load. TCV will have to open which will raise pressure requiring PCV to be throttled closed.

A, B and D are incorrect; opening PCV will raise pressure, closing TCV will raise temperature, Comments Page 60 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 52 R06052 X Question Information Examination Outline Cross-Reference Previous Bank QID 2291-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References OP-003-016 K/A 3.8-078-K2.01 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-AIR00 03 Proposed Question Which ONE of the following is the power supply to IA Compressor A?

A 21A Bus B 22A Bus C 31A Bus D 32A Bus Answer C Explanation C is correct; IA compressor A is powered from 31A.

A, B and C are incorrect. Station Air A is powered by the 21 bus. 22A and 32A busses exist but do NOT power IA compressors.

Comments Page 61 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 53 R06053 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-AIR K/A 3.8-078-G2.1.28 Ref Supplied N/A Imp. Rating 3.2 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-AIR00 04 Proposed Question The Instrument Air System and its supported components are designed such that A Instrument Air to Containment receives an isolation signal from an SIAS.

B all safety-related components using Instrument Air are designed to fail-closed.

C Containment isolation valves required to be closed can be maintained closed for a maximum of 10 days.

D Nitrogen Backup accumulators on selected valves will provide for 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> of operation following a SBO.

Answer D Explanation D is correct; Nitrogen accumulators provide for 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> of operation following a LOCA concurrent with Loss of all AC to allow for natural circ cooldown.

A is incorrect; CIAS isolates instrument air to containment.

B is incorrect; safety related valves with go to FAIL SAFE condition on a loss of instrument air.

C is incorrect; essential air maintains a 30-day backup supply.

Comments Page 62 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 54 R06054 X Question Information Examination Outline Cross-Reference Previous Bank QID 2542-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References TS 1.9, TS 3.9.4, K/A 3.5-103-K3.01 TS 3.6.1.1, OP-010-006 Ref Supplied N/A Imp. Rating 3.3*

Cognitive Level 2 10 CFR 55.41(b) 9 Learning Objective WLP-OPS-REQ04 01 Proposed Question Initial Conditions are as follows:

• Plant is in MODE 6

• Core Alterations are in progress, a fuel bundle is currently being lowered into the core

• S/G #1 upper manways are removed for inspections

• While making a plant tour, an NAO reports that one of the #1 S/G safety valves has been removed by maintenance and taken back to the shop. A Containment closure impairment has NOT been written for this condition.

Based on the above information, required response to this condition is:

A Install S/G #1 safety valve within one hour.

B Install S/G #1 upper manways within one hour.

C Immediately suspend core alterations, place fuel bundle into the core.

D Immediately suspend core alterations, leave fuel bundle in its current position.

Answer C Explanation C is correct; with S/G manways and safety removed pathway exist from containment to atmosphere with no closure impairment identified. LCO action is to immediately suspend core alterations this does NOT preclude placing bundle in safe location of which Reactor vessel is the preferred location.

A and B are incorrect; while this action may be operationally valid and is directed for modes 1-4 per TS 3.6.1.1, it is NOT required in mode 6 and is overridden by suspending core alterations to minimize the possibility of a release.

D is incorrect; immediately suspending core alterations is required BUT leaving a bundle suspended is nonconservative.

Page 63 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Comments Page 64 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 55 R06055 X Question Information Examination Outline Cross-Reference Previous Bank QID 1316-A Level RO NRC Exam History N/A Tier/Group 2/1 Tech References SD-CB K/A 3.5-103-G2.1.27 Ref Supplied N/A Imp. Rating 2.8 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-CB00 04 Proposed Question The purpose of the Containment Vacuum Relief System is to:

A Minimize external pressure on Containment during an inadvertent actuation of the Containment Spray system.

B Minimize external pressure on the Shield Building during an inadvertent actuation of the Containment Spray system.

C Minimize internal pressure on Containment by venting the annulus space to containment.

D Minimize internal pressure on the Shield Building by venting the annulus space to containment.

Answer A Explanation A is correct; the containment vacuum relief system allows venting annulus between the shield building and the containment vessel to reduce pressure differential across containment vessel that would result from inadvertent actuation of containment spray.

B and D are incorrect; the shield building external pressure is at atmospheric pressure, by venting pressure from the annulus DP across shield building would increase. Annulus negative pressure system maintains annulus at a vacuum within limits.

C is incorrect; containment pressure is reduced by periodic venting to maintain limits Comments Page 65 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 56 R06056 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/2 Tech References SD-CED K/A 3.1-001-K3.02 Ref Supplied N/A Imp. Rating 3.4*

Cognitive Level 2 10 CFR 55.41(b) 6 Learning Objective WLP-OPS-CED00 01 Proposed Question Plant conditions are as follows:

• A reactor startup is in progress.

• Reactor Power is approaching the Point of Adding Heat.

• The High Log Power Trip has been bypassed.

• Regulating Group CEAs are being withdrawn in Manual Sequential.

Which automatic protective feature will actuate FIRST in response to a continuous withdrawal of the CEA groups?

A Automatic CEA Withdrawal Prohibit (AWP)

B CEA Withdrawal Prohibit (CWP)

C High Linear Power Trip D High Pressurizer Pressure Trip Answer B Explanation B is correct. A continuous withdrawal of a CEA group would cause RCS pressure to rise. 2 of 4 High Pressurizer Pressure Pre-Trips (actuate below 2350 PSIA) cause a CWP.

A is incorrect. AWPs only affect CEAs when in the Auto Sequential mode. This mode is only used for a short while following a Reactor Power Cutback.

C is incorrect. High Linear Power Trip actuates at 108% power.

D is incorrect. High Pressurizer Pressure Trip actuates at 2350 PSIA.

Comments Page 66 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 57 R06057 X Question Information Examination Outline Cross-Reference Previous Bank QID 2631A Level RO NRC Exam History N/A Tier/Group 2/2 Tech References OP-902-003 K/A 3.2-002-A4.02 Ref Supplied N/A Imp. Rating 4.3 Cognitive Level 1 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PPE05 4 Proposed Question ALL offsite power was lost one hour ago causing a trip from extended full power operations. Offsite power has NOT been regained.

Which ONE of the following is an indication of Inadequate Natural Circulation in this condition?

A Loop delta-T is 65°F B RCS hot and cold leg temperatures are decreasing C RCS subcooling is 30°F as sensed on Representative CET D Representative CET temperature indicate 545°F and RCS hot leg temperature indicates 539°F Answer A Explanation A is correct; Adequate natural circulation criteria is Core delta T < 58°F.

B is incorrect; hot leg and cold leg temperatures ARE stable or trending down.

C is incorrect; RCS minimum subcooling IS > 28°F.

D is incorrect; TH and CET delta t IS <10°F.

Comments Page 67 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 58 R06058 X Question Information Examination Outline Cross-Reference Previous Bank QID 60-A Level RO NRC Exam History 2004 NRC SRO/ RO Tier/Group 2/2 Tech References PDP Vol. 2 Fig 1 & Fig 3 K/A 3.2-011-A1.04 Ref Supplied PDP Vol. 2 Fig 1 & Fig 3 Imp. Rating 3.1 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PLC00 09 Proposed Question Plant conditions are as follows:

• The plant is operating steady state at 75% power.

• Tavg is being maintained on the program.

• A Pressurizer Level Control system malfunction has occurred, requiring Pressurizer Level Control to be placed in Manual.

The CRS wants Pzr level to be restored to program level prior to placing the pressurizer level controller back in Auto. What is your target level?

A 45.0%

B 46.5%

C 49.0%

D 51.5%

Answer C Explanation C is correct; 75% power corresponds to 564°F Tave On Fig 1. Corresponds to 49% PZR level on Fig 3.

A is incorrect; 45% corresponds to Tave of 559.5°F.

C is incorrect; 46.5% corresponds to Tave of 561°F.

D is incorrect; 51.5% corresponds to Tave of 567°F.

Comments Original had power at 55%. 43% was correct answer.

Page 68 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 59 R06059 X Question Information Examination Outline Cross-Reference Previous Bank QID 4148-B Level RO NRC Exam History N/A Tier/Group 2/2 Tech References SD-COL; OP-901-501 K/A 3.7-015-K6.03 Ref Supplied N/A Imp. Rating 2.6 Cognitive Level 1 10 CFR 55.41(b) 2 Learning Objective WLP-OPS-COL00 05 Proposed Question The following plant conditions exist:

• Plant is at 100% power

• A loss of the Plant Monitoring Computer (PMC) and COLSS has occurred.

• All Incore detector points on the Control Room CRTs indicate BAD.

Which of the following core indications will be lost?

A Azimuthal Power Tilt B Local Power Density C Departure From Nucleate Boiling Margin D Axial Shape Index Answer A Explanation A is correct; Azimuthal tilt is continuously calculated based on fixed incore detectors. In the event of a loss of PMC/COLSS Azimuthal tilt is determined by STA using NE-005-102.

B, C and D are incorrect; LPD, DNBR and ASI can be determined using Core Protection Calculators.

Comments Page 69 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 60 R06060 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/2 Tech References T.S. 3.4.8.1 K/A 3.7-016-G2.1.33 Ref Supplied N/A Imp. Rating 3.4 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-TS04 01 Proposed Question Assuming Heatup/Cooldown rates remain constant, which conditions result in a Technical Specification entry?

08:45 09:00 09:15 09:30

1. RCS Cold Leg Temperature 350°F 360°F 370 °F 380°F

2. RCS Cold Leg Temperature 350°F 370°F 390 °F 410°F

3. RCS Cold Leg Temperature 500°F 480°F 460 °F 440°F

4. RCS Cold Leg Temperature 500°F 470°F 440 °F 410°F A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4 Answer C Explanation C is correct; 2 and 4 BOTH exceed the 60°F and 100 °F/hr limits.

A, B, and D are incorrect; 1 will NOT exceed the heatup limit, 3 will NOT exceed the cooldown.

Comments Page 70 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 61 R06061 X Question Information Examination Outline Cross-Reference Previous Bank QID 6067-A Level RO NRC Exam History 2003 NRC Exam Tier/Group 2/2 Tech References OP-901-102 K/A 3.1-014-A2.07 TS 3.1.3.3; TS 3.1.3.2 Ref Supplied N/A Imp. Rating 2.6 Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPO10 03 Proposed Question Given the following conditions;

• The Plant is in MODE 3

• Shutdown Bank A is being withdrawn.

• CEA Pulse Counter for CEA 28 reads 22 inches

• Reed Switch Position Transmitter 1 (RSPT 1) for CEA 28 is Out Of Service

• Reed Switch Position Transmitter 2 (RSPT 2) for CEA 28 reads 22 inches If RSPT 2 were to fail for CEA 28, OP-901-102, CEA or CEDMCS Malfunction, would direct the crew to A immediately insert CEAs in Shutdown Bank A to their fully inserted positions.

B immediately open the Reactor Trip Breakers.

C within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> insert CEAs in Shutdown Bank A to their fully inserted positions.

D within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> open the Reactor Trip Breakers.

Answer B Explanation B is correct; this complies with OP-901-102 step 6, which also complies with TS 3.1.3.3.

A is incorrect; fully inserting the CEAs is plausible since it mirrors TS 3.1.3.2, which allows fully withdrawing the CEA with only one position indicator.

C and D are incorrect; neither TS 3.1.3.2 nor TS 3.1.3.3 has a 1-hour allowance.

Comments Page 71 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 62 R06062 X Question Information Examination Outline Cross-Reference Previous Bank QID 1367-B Level RO NRC Exam History N/A Tier/Group 2/2 Tech References SD-FS K/A 3.8-033-K4.04 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-FS00 03 Proposed Question Which ONE of the following design features limits inadvertent draining of the Spent Fuel Pool?

A The Fuel Pool Cooling return line has holes drilled in the piping that act as an anti-siphon device.

B The Fuel Pool Cooling pumps suction piping has holes drilled in the piping that act as an anti-siphon device.

C All Fuel Pool piping systems, including pumps and valves, are located at or above the normal operating water level.

D The Spent Fuel Pool CMU makeup valve automatically opens on a Spent Fuel Pool Low Level alarm.

Answer A Explanation A is correct; Fuel Pool cooling lines have siphon breaker holes drilled into the return line to prevent inadvertent draining of the SFP.

B is incorrect; FP cooling suction piping is cut at the 406 elevation.

C is incorrect; Fuel pool cooling return pipe extends to the 366 elevation.

D is incorrect; CMU makeup to SFP is a manual valve.

Comments Page 72 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 63 R06063 X Question Information Examination Outline Cross-Reference Previous Bank QID 1235-A Level RO NRC Exam History N/A Tier/Group 2/2 Tech References SD-SBC K/A 3.4-041-A3.02 Ref Supplied N/A Imp. Rating 3.3 Cognitive Level 2 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-SBC00 05 Proposed Question The following plant conditions exist:

• Plant is at 100% power.

• Tavg at 573°F.

• RCS pressure is 2250 psia.

• Reactor Cutback is out of service.

• Reactor trip on turbine trip is enabled.

• A Turbine Trip occurs.

The response of the steam bypass control system immediately following generation of the turbine trip signal will be: (assume all SBCS valves available)

A All valves will quick open.

B Only Valves 1 through 5 will quick open.

C Only Valves 1 through 3 will quick open.

D No valves will quick open.

Answer B Explanation B is correct; with cutback out of service a turbine trip will result in a reactor trip which will generate a quick open signal to SBC valves. #6 bypass valve quick open signal will be blocked on a reactor trip.

A, C, and D are incorrect; valves 1-5 will quick open on a trip from 100% and # 6 quick open will be blocked.

Comments Page 73 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Page 74 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 64 R06064 X Question Information Examination Outline Cross-Reference Previous Bank QID 3058-A Level RO NRC Exam History N/A Tier/Group 2/2 Tech References T.S 3.11.2.5 K/A 3.9-071-K5.04 Ref Supplied N/A Imp. Rating 2.5 Cognitive Level 1 10 CFR 55.41(b) 13 Learning Objective WLP-OPS-GWM00 07 Proposed Question Chemistry has informed the Control Room that the in service Gas Decay Tank Oxygen concentration is reading 4.7% and the Hydrogen concentration is reading 57.7%.

Per Technical Specifications, we must ___________ suspend all additions of waste gas, and _________

reduce the concentration of Oxygen to < 4%.

A Immediately / Immediately B Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> / Within 1 Hour C Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> / Immediately D Immediately / Within 1 Hour Answer A Explanation A is correct; TS Action b - with Oxygen concentration >4% and Hydrogen >4%, immediately suspend all additions of waste gases to the system and immediately reduce Oxygen level <4%.

B, C, and D are incorrect; but plausible combinations.

Comments Old Q only addressed time of TS, old values were 8, 24, and 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />.

Page 75 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 65 R06065 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 2/2 Tech References SD-RMS K/A 3.7-072-K1.05 Ref Supplied N/A Imp. Rating 2.8*

Cognitive Level 1 10 CFR 55.41(b) 11 Learning Objective WLP-OPS-RMS00 01 Proposed Question The Main Steam Line N-16 Radiation Monitor provides accurate leakrate indication between ______ gpd and ______ gpd and will alarm if leakrate exceeds ________ gpd/hr.

A 15 / 300 / 15 B 30/ 300 / 15 C 15 / 150 / 30 D 30 / 150 / 30 Answer D Explanation D is correct; effective range of N-16 radmonitor is between 30-150 GPD and 30 GPD/hr change will generate an alarm.

A, B, and C are incorrect; but plausible permutations of the correct answer.

Comments Page 76 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 66 R06066 X Question Information Examination Outline Cross-Reference Previous Bank QID 1369-B Level RO NRC Exam History N/A Tier/Group 3 Tech References OI-024-000 K/A 2.1.10 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-TS04 01 Proposed Question A licensee has NOT stood the required number of proficiency watches prior to the end of the calendar quarter. Which one of the following correctly describes the 10CFR55 provision for the licensee to perform licensed duties during the next quarter?

A The license must become inactive. 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> of under instruction watches shall be stood to return the license to active status.

B The license must become inactive. Seven 8-hour or five 12-hour under instruction watches shall be stood to return the license to active status C Active status may be continued provided the remaining proficiency watches are stood during the first week of the following calendar quarter (2 watches maximum)

D Active status may be continued provided the remaining proficiency watches are stood during the first week of the following calendar quarter (3 watches maximum)

Answer A Explanation A is correct; failure to complete the required number of proficiency watches will result in inactivation of the license, which will require 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> under instruction to reactivate.

B, C, and D are incorrect; five 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> watches are the required number of proficiency watches to maintain active status. There is no provision for reactivating a license in the first week of the quarter.

Comments Page 77 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 67 R06067 X Question Information Examination Outline Cross-Reference Previous Bank QID WF3-NRC-1607-A Level RO NRC Exam History N/A Tier/Group 3 Tech References OP-010-004 K/A 2.1.25 Ref Supplied Plant Data Book, Vol 2, Imp. Rating 2.8 Generator Capability Curve Cognitive Level 2 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPN01 Proposed Question The following plant conditions exist:

• Hydrogen pressure is 45 psig.

• Generator load is 1180 MW.

• Generator excitation is 300 MVAR lagging (overexcited).

Refer to the attached Generator Capability Curve. Which ONE of the following statements describes your MINIMUM REQUIRED action, if any?

A You must lower excitation by 20 MVAR.

B You must lower generator load by 30 MW.

C You must lower load by 60 MW, and lower excitation by 30 MVAR.

D You may continue operation since the OP-010-004 admin limit is 400 MVAR out.

Answer B Explanation B is correct; Reducing load by 30 MW will place the generator just below the 300 MVAR limit for 45 psig (1160 MW).

A is incorrect; At 1180 MW, excitation must be lowered by at least 80 MVAR.

C is incorrect; this is excessive power reduction.

D is incorrect; OP-010-004 Admin limit is the more limiting of 400 MVAR out or the Curve limit. In this case the curve limit is more limiting.

Page 78 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Comments Page 79 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 68 R06068 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 3 Tech References OP-009-007 K/A 2.1.32 Ref Supplied N/A Imp. Rating 3.4 Cognitive Level 1 10 CFR 55.41(b) 5 Learning Objective WLP-OPS-PPS00 10 Proposed Question What feature described in the Limitations of OP-009-007, Plant Protection System, is designed to prevent operator misuse during uncontrolled transients?

A Low Steam Generator Pressure trip setpoint cannot be lowered below 100 psia.

B Low Steam Generator Pressure trip setpoint cannot be reset twice within 20 seconds C Low Pressurizer Pressure trip setpoint cannot be lowered below 400 psia.

D Low Pressurizer Pressure trip setpoint cannot be reset twice within 10 seconds.

Answer D Explanation D is correct; this 10-second feature is described in Limitation 5 of OP-009-007, and the reasoning is described in the NOTE for step 6.3.

A is incorrect; the lesson plan states that the Low Steam Generator Pressure trip setpoint can be lowered to 0 psia.

B is incorrect; the Low Steam Generator Pressure trip setpoint has the same 10-second feature as the Low Pressurizer Pressure trip setpoint (Limitation 4, and the NOTE for step 6.3).

C is incorrect; Limitation 5 states that the minimum Low Pressurizer Pressure trip setpoint is 100 psia, and it may be bypassed when below 400 psia.

Comments Page 80 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 69 R06069 X Question Information Examination Outline Cross-Reference Previous Bank QID 3484-A Level RO NRC Exam History N/A Tier/Group 3 Tech References TS 3.9.8.2 K/A 2.2.27 Ref Supplied N/A Imp. Rating 2.6 Cognitive Level 1 10 CFR 55.41(b) 13 Learning Objective WLP-OPS-REQ04 02 Proposed Question During refueling operations, shutdown cooling flow is allowed to be stopped for up to one hour in an eight-hour period in order to A improve visibility.

B install reactor vessel internals.

C seat fuel assemblies near the hot legs.

D keep unsupported fuel assemblies from falling.

Answer C Explanation C is correct; this statement complies with the asterisk (*) for TS 3.9.8.2.

A is incorrect; the asterisk (*) for TS 3.9.8.2 only allows for securing SDC to seat assemblies near the hot legs. This answer is plausible because the turbulence of SDC flow affects visibility.

B is incorrect; the asterisk (*) for TS 3.9.8.2 only allows for securing SDC to seat assemblies near the hot legs. This answer is plausible because SDC flow travels up through fuel assemblies, which could make it more difficult to install internals.

D is incorrect; the asterisk (*) for TS 3.9.8.2 only allows for securing SDC to seat assemblies near the hot legs. This answer is plausible because SDC flow creates turbulence around fuel assemblies, and center assemblies are unsupported on their sides in the early stages of core loading.

Comments Page 81 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 70 R06070 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 3 Tech References TS 3.1.2 .8, TS Fig 3.1-1 K/A 2.2.22 and 3.1-2 Ref Supplied TS 3.1.2 .8, TS Fig 3.1-1 Imp. Rating 3.4 and 3.1-2 Cognitive Level 2 10 CFR 55.41(b) 8 Learning Objective WLP-OPS-TS04 02 Proposed Question The Borated Water Operability requirement in MODE 1 is satisfied by A BAMT B Tagged out / BAMT A 5100 ppm, 80% / RWSP 2600 ppm.

B BAMT A Tagged out / BAMT B 5300 ppm, 83% / RWSP 2300 ppm.

C BAMT A 5400 ppm, 30% / BAMT B 5400 ppm, 51% / RWSP 2300 ppm.

D BAMT A 5200 ppm, 40% / BAMT B 5200 ppm, 37% / RWSP 2600 ppm.

Answer B Explanation B is correct; BAMT B 5300 ppm @83 % figure 3.1-1 is in the acceptable region of the curve.

A, is incorrect; BAMT A 80% @ 5100 ppm lies in the unacceptable region of curve 3.1-1 C and D are incorrect; combined BAMTs of 81% and 77% @ 5400 ppm and 5300 ppm lie in the unacceptable region of curve 3.1-2 Comments Page 82 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 71 R06071 X Question Information Examination Outline Cross-Reference Previous Bank QID NRC-6105-A Level RO NRC Exam History 2004 NRC Exam Tier/Group 3 Tech References ENS-RP-110 K/A 2.3.2 Ref Supplied N/A Imp. Rating 2.5 Cognitive Level 2 10 CFR 55.41(b) 12 Learning Objective WLP-OPS-RAD02 07 Proposed Question A valve must be worked in the RCA. The dose rate in the area is 40 mrem/hr.

Two options exist to complete the work.

• Option 1: Operator X can perform the assignment in seventy five (75) minutes alone.

• Option 2: Operators Y and Z, can perform the assignment in forty five (45) minutes together.

Which ONE of the following options is preferable and consistent with the ALARA program?

A Option 2 since the exposure per person is 18 mrem.

B Option 2 since the exposure per person is 30 mrem.

C Option 1 since Operator X exposure is 46 mrem.

D Option 1 since Operator X exposure is 50 mrem.

Answer D Explanation D is correct. 40 X 1.25 = 50 mrem total exposure.

A is incorrect. 40 X 0.45 = 18 mrem. This represents a logical math error.

B is incorrect. 40 X 0.75 = 30 mrem. Total exposure is 60 mrem, which is inconsistent with the ALARA program.

C is incorrect. 40 X 1.15 = 46 mrem. This represents a logical math error.

Comments Page 83 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 72 R06072 X Question Information Examination Outline Cross-Reference Previous Bank QID NRC-5913-A Level RO NRC Exam History 2002 NRC Exam Tier/Group 3 Tech References ENS-RP-207 K/A 2.3.4 Ref Supplied N/A Imp. Rating 2.5 Cognitive Level 1 10 CFR 55.41(b) 12 Learning Objective WLP-OPS-RAD02 06 Proposed Question A valve is to be locally operated under the Planned Special Exposure (PSE) limits of ENS-RP-207. The radiation dose on contact at the valve is 25 rem/hour.

The operator assigned to operate the valve has never had any radiation exposure beyond normal annual limits.

Shielding will be used to prevent TEDE dose in excess of Waterford 3 administrative limits.

Considering only the exposure to the individual's hands, the maximum amount of time the person may be permitted to work on the valve is ________ minutes; and, in addition to Radiation Protection Manager and General Manager authorization, ___________________ authorization is required.

A 60; Operations Manager B 60; Site Vice President C 120; Operations Manager D 120; Site Vice President Answer D Explanation D is correct. 25 r/hr x 2 hr = 50 rem. 50 rem is the extremity limit for PSEs (step 5.3.2). Site Vice President is required (step 5.2.1).

A and B are incorrect. 60 minutes is only 25 rem. 50 rem is the extremity limit for PSEs.

C is incorrect. Site Vice President is required (step 5.2.1). The Operations Manager is not mentioned in this step.

Comments Page 84 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 73 R06073 X Question Information Examination Outline Cross-Reference Previous Bank QID 5723-N Level RO NRC Exam History 2003 SRO Tier/Group 3 Tech References OP-901-414 K/A 2.3.11 Ref Supplied N/A Imp. Rating 2.7 Cognitive Level 1 10 CFR 55.41(b) 13 Learning Objective WLP-OPS-PPO40 03 Proposed Question Given the following conditions:

• SG 1 is in wet layup conditions after a Steam Generator Tube Rupture in SG 1

• SG 2 is being discharged to Circ Water through the Blowdown system

• SG 1 will be discharged to Circ Water following completion of SG 2 discharge

• SG 1 discharge permit has NOT been prepared and samples have NOT been taken of SG 1 contents During the release the ATC notices that SG 1 level is lowering, Blowdown Containment Isolation Valves, BD-102A and BD-103A, S/G 1 Blowdown Containment Isolation Valves, are open.

Which of the following actions complies with OP-901-414, Effluent Discharge High Radiation, for securing the radiation release to Circ Water?

A Close BD-303, BD to CW or Waste Pond Isolation, to secure the release from BOTH SGs.

B Close BD-102A(B), BD-103A(B), S/G 1(2) Blowdown Containment Isolation Valves, to secure the release from BOTH SGs.

C Close BD-109A, S/G 1 Blowdown Flow Control Valve, to secure the release of S/G 1.

D Close BD-102A and BD-103A, S/G 1 Blowdown Containment Isolations, to secure the release of S/G 1.

Answer A Explanation A is correct. This is the isolation valve for the release path per OP-901-414.

B is incorrect. This is NOT mentioned in OP-901-414.

C is incorrect. OP-901-414 states to verify BD-103 closed and close BOTH BD-109A and B.

D is incorrect. OP-901-414 isolates the release path prior to sampling.

Page 85 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Comments Page 86 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 74 R06074 X Question Information Examination Outline Cross-Reference Previous Bank QID NRC-2909-A Level RO NRC Exam History N/A Tier/Group 3 Tech References OP-100-017 K/A 2.4.17 Ref Supplied N/A Imp. Rating 3.1 Cognitive Level 1 10 CFR 55.41(b) 10 Learning Objective WLP-OPS-PPE01 13 Proposed Question When used in the EOPs, continuously applicable steps should be monitored at all times and ONLY performed A after completing applicable hold point steps.

B when the instruction step can NOT be completed C after having been presented in the EOP.

D when a specific plant condition is met.

Answer D Explanation D is correct. Meets conditions of step 5.8.1.

A is incorrect. Step 5.8.2 allows taking continuously applicable steps prior to completing hold points.

B is incorrect. This is a contingency action (step 5.9.1).

C is incorrect. Allowed to bypass this condition for continuously applicable steps (step 5.8.1).

Comments Page 87 of 88

ES-401 SAMPLE WRITTEN EXAMINATION Form ES-401-5 QUESTION WORKSHEET Q# QID New Modified Direct from Bank 75 R06075 X Question Information Examination Outline Cross-Reference Previous Bank QID N/A Level RO NRC Exam History N/A Tier/Group 3 Tech References OP 500-011 K/A 2.4.45 OP-500-010 OP-901-520 Ref Supplied N/A Imp. Rating 3.3 Cognitive Level 2 10 CFR 55.41(b) 7 Learning Objective WLP-OPS-PPO20 04 Proposed Question Assume each of the following alarms are valid with the plant at 100% power:

• TOXIC GAS DETECTED CHANNEL 1 (Cabinet L, C-9)

• SG 1 FW ISOL VLV AIR RSVR PRESS LO (Cabinet M, N-3)

Of these alarms ________________ should be addressed FIRST because A TOXIC GAS DETECTED CHANNEL 1; Control Room Isolation must be manually initiated.

B TOXIC GAS DETECTED CHANNEL 1; Control Room Habitability is in question.

C SG 1 FW ISOL VLV AIR RSVR PRESS LO, FW-184A fails closed.

D SG 1 FW ISOL VLV AIR RSVR PRESS LO, FW-184A fails as-is.

Answer B Explanation B is correct. TOXIC GAS DETECTED CHANNEL is an entry condition for TOXIC chemical release which has immediate operator actions due to control room Habitability.

A is incorrect. Control room isolation will occur automatically from BRGM exceeding their setpoint.

C is incorrect. Loss of IA will cause FW184A to fail as-is.

D is incorrect; Loss of IA will cause FW184A to fail as-is, which is a true statement, but should have no immediate affect on plant operations. OP-901-520 requires immediate action to protect personnel in the Control Room.

Comments Page 88 of 88