ML051250409

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Final As-Administered RO Written Examination for the Duane Arnold Initial Examination - Jan/Feb 2005
ML051250409
Person / Time
Site: Duane Arnold NextEra Energy icon.png
Issue date: 01/31/2005
From: Hironori Peterson
NRC/RGN-III/DRS/OLB
To:
Nuclear Management Co
References
50-331/05-301 50-331/05-301
Download: ML051250409 (92)
v • d • e


Text

QF-1030-03 Rev. 3 (FP-T-SAT-30)

Retention: Life of plant insurance policy + 10 yr.

Retain in: Training Records 57_05-ILC-RO-NRC-written_xm_Rev2.doc Rev. 2

QF-1030-02 Rev. 3 (FP-T-SAT-30)

WRITTEN EXAMINATION COVERSHEET Trainee Name:

Employee Number: Site:

Examination Number/Title: 57_05-ILC-RO-NRC-Written Training Program: Operations Course/Lesson Plan Number(s): Reactor Operator, 50007 GRADE:

Total Points Possible: 75 PASS CRITERIA: 80% Grade: /75=  %

Graded by: Date:

Co-graded by (not required if Scantron graded): Date:

EXAMINATION RULES

1. References may not be used during this examination, unless otherwise stated.
2. Read each question carefully before answering. If you have any questions or need clarification during the examination, contact the examination proctor.
3. Conversation with other trainees during the examination is prohibited.
4. Partial credit will not be considered, unless otherwise stated. Show all work and state all assumptions when partial credit may be given.
5. Rest room trips are limited and only one examinee at a time may leave.
6. For exams with time limits, you have minutes to complete the examination.
7. Feedback on this exam may be documented on QF-1040-13, Exam Feedback Form. Contact Instructor to obtain a copy of the form.

EXAMINATION INTEGRITY STATEMENT Cheating or compromising the exam will result in disciplinary actions up to and including termination.

I acknowledge that I am aware of the Examination Rules stated above, Further, I have not given, received, or observed any aid or information regarding this examination prior to or during its administration that could compromise this examination.

Examinees Signature: Date:

REVIEW ACKNOWLEDGEMENT I acknowledge that the correct answers to the exam questions were indicated to me following the completion of the exam. I have had the opportunity to review the examination questions with the instructor to ensure my understanding.

Examinees Signature: Date:

Retention: 6 years Retain in: Training Records 57_05-ILC-RO-NRC-written_xm_Rev2.doc Rev. 2

QF-1030-02 Rev. 3 (FP-T-SAT-30)

WRITTEN EXAMINATION COVERSHEET Training program: Operations Course/lesson plan Number(s):

Reactor Operator, 50007 Examination Number/Title: 57_05-ILC-RO-NRC-Written Retention: 6 years Retain in: Training Records 57_05-ILC-RO-NRC-written_xm_Rev2.doc Rev. 2

1 Point

1. The plant was operating at 93% thermal power when the following occurred:
  • 1P201A, A RECIRC PUMP, tripped
  • Power has stabilized at approximately 60% thermal power What is the Tech. Spec. SAFETY LIMIT for MCPR in this condition?
a. 1.10
b. 1.12
c. 1.40
d. 1.70 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 1 Written Exam

1 Point

2. The following plant conditions exist:
  • A Loss of Offsite Power has occurred
  • Drywell pressure is 3.6 psig and rising slowly
  • The A and B Standby Diesel Generators (SBDG) have successfully reenergized the respective essential busses
  • A large lube oil leak on the A SBDG Based on the above conditions the Control Room Supervisor (CRS) directs you to secure the A SBDG. If possible, how can you secure the A SBDG, other than tripping the fuel racks locally?
a. Tripping the fuel racks locally is the ONLY way to secure the A SBDG under the above conditions.
b. At 1C-93, SBDG 1G-21 CONTROL PANEL, using the appropriate key, HS-3232A, DIESEL GEN 1G-31 LOCAL HAND SWITCH, can be taken to LOCKOUT/STOP to secure the A SBDG.
c. At 1C08, HS-3231A, SWITCH, HAND, REMOTE, EDG/AG031, can be taken to STOP and held in that position for 5-10 seconds before returning to AUTO to secure the A SBDG.
d. At 1C08, HS-3231A, SWITCH, HAND, REMOTE, EDG/AG031, can be taken to PULL TO LOCK to secure the A SBDG.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 2 Written Exam

1 Point

3. Given the following conditions:
  • 1D20, 125 VDC DIVISION 2 DISTRIBUTION PANEL, is totally de-energized
  • All 4160 VAC Buses are aligned to the Start-up Transformer
  • EOP-1, RPV Control, has been entered to control RPV level
  • CRS has directed the crew to Restore and maintain RPV level between +170 and +211 inches with one or more of the Preferred Injection Systems Which ONE of the Preferred Injection Systems from EOP-1, Table 1A, from the list below is available for MANUAL injection into the RPV when initiated from the Control Room?
a. LPCI injection using 1P-229B, B RHR PUMP
b. Startup and injection of the HPCI System
c. Core Spray injection using 1P-211B, B CORE SPRAY PUMP
d. Startup and injection of the RCIC System Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 3 Written Exam

1 Point

4. The plant was operating at 35% thermal power when the following occurs:
  • 1455: Main Generator load is 24% and stable Reactor power is approximately 36% thermal power Bypass Valve #1 is 90% open Main Generator Stator water cooling outlet temp is 88ºC Which of the following statements is CORRECT?
a. The Main Generator will still be running back.
b. This event would have resulted in a Turbine Trip.
c. The plant will continue to operate in this condition.
d. This event would have resulted in a trip of the Main Generator Primary Lock-out.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 4 Written Exam

1 Point

5. The following occurred:
  • A reactor scram from 93% thermal power has occurred due to nuclear instrument failure
  • The Feed Pumps restored RPV level and tripped on a High RPV level signal
  • RPV level swelled 10 more inches due to heat up.
  • RPV level can be determined on the Flood-up range indicator on 1C04 in this plant condition Which other, if any, Control Room indicators could be used to monitor and trend RPV level?
a. The Flood-up indicator is the only indicator
b. The Narrow Range GEMAC (LI-4559, LI-4560 & LI-4561) on 1C05
c. The Wide Range Yarways (LI 4539 & LI-4540) on 1C05
d. The Fuel Zone indicators (LI-4565B & LI-4565C) on 1C03 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 5 Written Exam

1 Point

6. (Refer to AOP-915, Attachment 5 on the following page)

Given the following conditions:

  • 1230: Entered AOP 915, Shutdown Outside the Control Room
  • 1230: Manually scrammed the reactor from 93% Thermal Power and a normal operating pressure of 1020 psig
  • 1232: All rods were verified full in prior to evacuating the Control Room
  • 1245: All Outboard MSIVs close during the transfer to 1C388
  • 1300: Lowest set SRV started cycling between 1100 psig to 1040 psig
  • 1300: Commenced a cooldown of the RPV using AOP-915, Attachment 5 Instructions for Plotting Cooldown Without exceeding the Technical Specification Limiting Condition for Operation (LCO) for Cooldown Rate, attaining _______ psig at 1400 will remove the most energy.
a. 500
b. 480
c. 460
d. 440 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 6 Written Exam

1 Point

7. The plant is operating 93% thermal power in the middle of the summer. All systems are in their normal lineups with the exception of the D Well pump is tagged out of service.

Of the following systems, which one WILL NOT be immediately affected or require operator action to stabilize if the B Well pump trips?

a. The Offgas System
b. The Control Building HVAC System
c. The Reactor Building HVAC System
d. The Instrument and Service Air System Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 7 Written Exam

1 Point

8. HPCI is running in the CST to CST mode.

If the plant were to completely lose Instrument Air header pressure, HPCI air-operated valves fail

a. OPEN to allow HPCI operation independent of outside energy sources.
b. AS-IS and are provided a back-up air supply from two accumulator tanks.
c. CLOSED to allow HPCI to operate only in the RPV injection mode of operation.
d. CLOSED EXCEPT CV-2315, HPCI CST TEST RETURN ISOLATION, has a back-up air supply.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 8 Written Exam

1 Point

9. IPOI-8, Outage and Refueling Operations, lists system heat removal capacities based on the following assumptions:
  • RPV Temp 140°F
a. Reactor Water Cleanup
b. Feed and Bleed at 200 gpm
c. Fuel Pool Cooling with one (1) pump in service
d. Shutdown cooling with one (1) RHR pump and one (1) RHRSW pump in service Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 9 Written Exam

1 Point

10. A refueling outage is in progress.
  • The first fuel shuffle has been completed
  • Operator stationed at 1C05 for fuel movement has been secured
  • Technicians are performing in vessel inspections
  • There is continuous Health Physics coverage on the Refuel Floor
  • In this condition, 1Y11, DIVISION 1 INSTRUMENT AC, was lost
  • All four (4) Area Radiation Monitors (ARMs) on the Refuel Floor became deenergized What compensatory measure(s) is/are required in this plant condition?
a. Install two (2) alternate monitors with audible alarms.
b. Secure In Vessel Inspections and perform shiftly area radiation surveys.
c. Verify and maintain continuous Health Physics coverage on the refuel floor.
d. Station an operator at 1C05 to monitor SRMs and install one (1) alternate monitor with an audible alarm.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 10 Written Exam

1 Point

11. The plant was operating at 93% thermal power when a loss of Well Water occurred. Conditions are as follows:
  • An air purge of the Drywell is in progress
  • A SBGT is in operation to support Drywell air purge
  • Core flow has been reduced to 27 Mlbs/hr, and a plant shutdown has commenced Which of the following equipment becoming INOPERABLE would prevent continuing the air purge of the Drywell?
a. 1V-SGT-001B, B SBGT train
b. 1C-219A, A CONTAINMENT H2-O2 MONITOR
c. RIS-4131A, A FUEL POOL EXHAUST RAD MONITOR
d. 1C-333/334, OFFGAS STACK ACCIDENT/NORMAL RANGE KAMAN SKIDS Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 11 Written Exam

1 Point

12. (Refer to the picture on the following page of LR/PR-4563/64 & LRS-4559/60, REACTOR PRESSURE / REACTOR WATER LEVEL RECORDER)

The plant was at 93% thermal power when a transient occurred. Interpret the picture of LR/PR-4563/64 & LRS-4559/60, REACTOR PRESSURE / REACTOR WATER LEVEL RECORDER, to diagnose the details of the transient. Note: the chart paper was advanced approximately two inches to allow viewing of the trends.

The plant underwent a transient that contained which set of the following?

a. Manual Reactor Scram, Pressure control by RCIC
b. 1 SRV Opens, Reactor Scram, Pressure controlled by open SRV
c. Group 1 Isolation, Reactor Scram, Pressure control by SRVs operating in LLS mode
d. Turbine Trip, Reactor Scram, Pressure control by BPVs operating in Pressure Set mode Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 12 Written Exam

1 Point

13. There was a grid disturbance and the plant suffered a LOOP:
  • 1G-21 and 1G-31, Standby Diesel Generators, are carrying 1A3 and 1A4
  • RHR is running in Torus Cooling mode with B and D RHR Pumps and B RHRSW pump
  • A RHR system flow is 0 gpm
  • B RHR system flow is 7000 gpm
  • B RHRSW system flow is 2600 gpm Which of the following would be appropriate per procedure to raise the rate of heat rejection from the Torus?
a. Start 1P-22D, D RHRSW PUMP.
b. Start an additional River Water Supply pump.
c. Throttle open MO-1934, TORUS COOLING/TEST valve.
d. Throttle open MO-1947, B RHR HX SERVICE WATER OUTLET valve.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 13 Written Exam

1 Point

14. As a result of a transient the following conditions exist:
  • An Emergency Depressurization was performed
  • Drywell Temperature and Reactor Pressure are in the Action is required area of Graph 1, RPV Saturation Temperature of the EOP Which one of the following describes the relationship between INDICATED RPV water level on the Fuel Zone and GEMAC instruments, and ACTUAL RPV water level?

All of the instruments...

a. read lower than ACTUAL.
b. read higher than ACTUAL.
c. EXCEPT the Fuel Zones read lower than ACTUAL.
d. EXCEPT the Fuel Zones read higher than ACTUAL.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 14 Written Exam

1 Point

15. The Torus Level Control Leg of EOP 2 directs the operators to maintain Torus level above 7.1 feet, and if it cant be, the reactor shall be scrammed.

The bases of this is to prevent

a. over pressurizing the Torus with HPCI running.
b. over pressurizing the Torus with an SRV open.
c. a loss of Torus level indication by maintaining the lower level instrument tap adequately submerged.
d. a loss of the pressure suppression function of the Torus by maintaining the Drywell-to-Torus downcomers adequately submerged.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 15 Written Exam

1 Point

16. A transient is in progress and EOP-1, RPV Control and ALC, Alternate Level Control, are entered. Emergency Depressurization (ED) has been initiated due to the inability to maintain level with high-pressure systems.

Which of the following RPV injection line-ups / level indications would be appropriate in this situation to maintain adequate core cooling?

a. One CS pump injecting at 2000 gpm, RPV level at -30 inches.
b. Two CS pumps injecting at 3100 gpm each, RPV level at -42 inches.
c. One CS pump injecting at 3100 gpm, one RHR pump injecting at 4000 gpm, and RPV level at

-36 inches and steady.

d. One CS pump injecting at 3100 gpm, three RHR pumps injecting at 14,400 gpm, and RPV level at -42 inches and steady.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 16 Written Exam

1 Point

17. The plant tripped from 93% thermal power. The following conditions exist:
  • There has been a complete LOSS OF RPS caused by a fire in 1Y30, RPS 120VAC DISTRIBUTION PANEL
  • On panel 1C05, Full Core Display, all the individual HCU blue scram indicating lights are ON
  • SDV Vent and Drain Valves are CLOSED Which of the following RIPs will be effective for the given conditions?
a. RIP-101.3, Vent the Scram Air Header
b. RIP-102.1, Repeated Manual Scram
c. RIP-103.1, Individual Scram Test Switches
d. RIP-103.3, Manually Drive Control Rods Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 17 Written Exam

1 Point

18. Given the following conditions:
  • Battery Room Exhaust Fans are lined up with 1V-EF-30A&C in ON-AUTO and 1V-EF-30B in OFF-AUTO
  • EOP-4, Radioactivity Release Control was entered
  • Annunciator 1C26A (C-2), CONTROL BLDG INTAKE AIR RAD MON RM-6101A TROUBLE, activated Battery Room Exhaust Fan(s) __________(1)__________ would be running to support maintaining the Control Room at a ______(2)______ pressure.
a. (1) 1V-EF-30A, 1V-EF-30B, & 1V-EF-30C (2) NEGATIVE
b. (1) 1V-EF-30A and 1V-EF-30C (2) NEGATIVE
c. (1) 1V-EF-30A (2) POSITIVE
d. (1) 1V-EF-30B (2) POSITIVE Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 18 Written Exam

1 Point

19. Conditions are as follows:
  • AOP-915, Shutdown Outside the Control Room, has been entered due to a fire in the control room
  • Operators have been directed to Establish Switchgear Ventilation Control per AOP-915, Tab 8
  • There are two fans that must be started to accomplish this task Where would one operate these fans?
a. The Battery Room Corridor
b. The 1A3 switchgear room
c. The 1A4 Switchgear room
d. 1C-388 Remote Shutdown Panel Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 19 Written Exam

1 Point

20. The plant was operating at steady state 93% thermal power when:
  • Annunciator 1C07B (B-2), TURBINE HI VIBRATION, activated
  • Bearing #3 vibration was 7.5 mils and rising at a rate of 1 mil per minute
  • The crew entered AOP-693, Main Turbine/EHC Failures, Turbine Vibration section Per AOP-693, in the current condition, the Main Turbine will be tripped
a. immediately after exceeding 8 mils.
b. immediately after exceeding 10 mils.
c. 2 minutes after exceeding 10 mils or immediately if 14 mils is exceeded.
d. 15 minutes after exceeding 10 mils or immediately if 12 mils is exceeded.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 20 Written Exam

1 Point

21. Which of the following is the basis for the automatic Main Steam Isolation Valve (MSIV) closure when a Main Condenser High Backpressure transient occurs while operating at 93% thermal power?

The MSIVs are designed to automatically close at 19 Hg Abs to prevent

a. over pressurizing the Main Condenser.
b. over pressurizing the Low Pressure Turbine Exhaust Hoods.
c. damaging the turbine final stages due to aerodynamic buffeting.
d. High exhaust hood temperatures and moisture caused erosion of the last stage buckets.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 21 Written Exam

1 Point

22. What is the reason Reactor pressure is lowered as low as practical and verified to be 120 psig prior to placing RHR Shutdown Cooling in service?

Pressure is lowered to

a. ensure design net positive suction head available to the RHR Pumps 1P-229A/B/C/D by providing lower temperature water.
b. not exceed the differential temperature limitation of the RHR Heat Exchangers 1E-201A/B tube to shell interface.
c. minimize the potential for an isolation of the Shutdown Cooling suction header valves (MO-1908/MO-1909) from spurious pressure spikes.
d. avoid exceeding the Reactor Pressure Vessel cooldown rate administrative or Technical Specification limits.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 22 Written Exam

1 Point

23. Complete the following statement on the bases for the Recirc pump runback.

The __(1)__ Recirc runback ___________________(2)___________________.

a. (1) 20%

(2) prevents cavitation of the jet pumps

b. (1) 20%

(2) prevents damage to the Recirc pump thrust bearing due to increased axial thrust when the Recirc Pump Discharge Bypass Valve is CLOSED

c. (1) 45%

(2) ensures the 170 scram on RVP level will not occur from rated full power.

d. (1) 45%

(2) minimizes the amount of time the remaining Reactor Feed Pump is operated at run-out conditions.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 23 Written Exam

1 Point

24. The Main Plant Well Water Supply Header has developed a major leak. Well Water Total Flow to the Reactor Building has lowered from 1580 gpm to 200 gpm.

Of the following sets of alarms & indications, which one set by itself is a Tech. Spec. Limiting Condition of Operation (LCO) entry condition?

a. 1C26A (B-5), A CHILLER 1V-CH-1A TROUBLE, annunciator activated The NSPEO reports A Chiller Fast Unloaded
b. 1C25A (B-3), DRYWELL COOLING LOOP A CRD AREA HI TEMP, annunciator activated Plant Process Computer point SPDS006 AVG DRYWELL AIR TEMP (AVG OF 8) reads 138°F rising slowly
c. 1C05B (B-1), PRIMARY CONTAINMENT HI/LO PRESSURE, annunciator activated PI-4398A, NR DRYWELL PRESSURE reads 1.55 psig and steady
d. 1C24A (A-2), A SBGT RUNNING, annunciator activated A SBGT running to vent the Drywell per AOP-408, Well Water System Abnormal Operation Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 24 Written Exam

1 Point

25. The plant had been running for 240 days with several Control Rod Drive Mechanisms (CRDMs) operating with high temperature alarms activated.

During an ATWS situation, which of the following CRDM failures by itself may be attributed to this lack of cooling?

a. Collet Finger Spring relaxation preventing Collet Fingers from engaging
b. Position Indicator Probe expansion creating binding with Index tube
c. Insert Line Ball Check Valve expanding and not repositioning
d. Drive Piston Seals degradation Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 25 Written Exam

1 Point

26. What is the basis for the isolation of secondary containment ventilation due to a Fuel Pool Exhaust high radiation?
a. Ensures any release from the Rad Waste building is treated and monitored.
b. Prevents the release of unfiltered radioactivity, and provides an elevated release point.
c. Maintains the dose to an individual within the Power Block to less than 1.2 Rem TEDE for the first 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> of the Design Bases Accident.
d. Provides a Reactor Building atmosphere that is recirculated by normal ventilation systems during the Refuel Floor Design Bases Accident.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 26 Written Exam

1 Point

27. Main Plant Exhaust Plenum pressure is rising.

Which of the following will AUTOMATICALLY initiate to provide the indicated protective function?

a. The Main Plant Exhaust Fans sequentially SHIFT to High Speed to prevent collapsing the Main Plant Exhaust Plenum.
b. The Reactor Building Exhaust Fans START to prevent Refuel Floor blow out panels from lifting.
c. The Reactor Building Supply fans TRIP to prevent over pressurizing Secondary Containment.
d. SBGT STARTS to draw at least a -.25 inch WG in the Reactor building.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 27 Written Exam

1 Point

28. (Refer to current 1C03 conditions provided on the next page.)

The plant has experienced a LOCA.

  • Torus cooling is maximized
  • LPCI Loop Select has selected the B Loop of RHR
  • The CRS has directed an Emergency Depressurization (ED), which is in progress
  • As RPV pressure lowers, the operator at panel 1C-03 takes some actions on the vertical section of 1C-03, but NO ACTIONS yet on the benchboard section Evaluate the 1C-03 vertical board conditions provided. Based on these conditions what is the expected:
1) status of MO-1904, B LPCI OUTBOARD INJECT VALVE
2) status of LPCI injection flow AT THIS TIME
3) response or action of MO-1904
a. 1) MO-1904 would be CLOSED
2) LPCI would NOT be injecting
3) MO-1904 would NOT automatically open
b. 1) MO-1904 would be OPEN
2) LPCI would NOT be injecting
3) If an operator closed MO-1904 it would NOT automatically re-open
c. 1) MO-1904 would be OPEN
2) LPCI would be injecting
3) If an operator closed MO-1904 it would automatically re-open
d. 1) MO-1904 would be OPEN
2) LPCI would be injecting
3) If an operator closed MO-1904 it would NOT automatically re-open Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 28 Written Exam

1 Point

29. 1P-99B, B ESW pump, is running to support Bromine Injection. Annunciator 1C06A (C-2), B ESW PUMP 1P-99B TRIP OR LO DISCHARGE PRESSURE, activates and 1P-99B indicates tripped.

Which of the following operations would need to be secured and why? (Consider each operation individually, not occurring at the same time.)

a. 1V-CH-001B, B CONTROL BUILDING CHILLER, running in a normal line-up.

Impending trip of the B Chiller on high discharge pressure due to a loss of condenser cooling.

b. HPCI system running CST to CST for pressure control after a reactor scram.

Loss of cooling to HPCI lube oil cooler.

c. 1P-211B, B CORE SPRAY PUMP running for STP 3.5.1-01, Core Spray System Operability Test.

Loss of cooling for the B Core spray pump seal cooler.

d. RHR running in Shutdown Cooling mode with 1P-229B, B RHR PUMP, and 1P-229D, D RHR PUMP injecting in B side.

Loss of cooling to 1P-229B and 1P-229D pumps seal coolers.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 29 Written Exam

1 Point

30. With HPCI in standby readiness, what is the power supply to the HPCI Flow Controller?

The HPCI Flow controller uses 120 VAC from

a. a 250 VDC inverter.
b. a 125 VDC inverter.
c. Instrument AC.
d. Uninterruptible power supply.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 30 Written Exam

1 Point

31. Which combination of MCCs, if de-energized, would prevent the operation of BOTH of the Core Spray Systems Inboard Injection Valves from the control room?
a. 1B32 / 1B42
b. 1B33 / 1B45
c. 1B34 / 1B44
d. 1B35 / 1B43 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 31 Written Exam

1 Point

32. (Refer to the picture on the following page of Standby Liquid Control System 1C-05 indications.)

Which of the following operations would be consistent with the indications provided?

a. One SBLC pump was started from Rx Building 4th Floor and is NOT injecting.
b. Only one SBLC pump was selected to start from 1C05 and is NOT injecting.
c. The SBLC system was started from 1C05 and is injecting, but one pump has lost power.
d. The SBLC system was started from 1C05, it injected, and when it was secured, only one pump stopped.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 32 Written Exam

1 Point

33. Given the following conditions:
  • RPV level lowered to 110 during the initial transient but has been restored to the normal operating band for two minutes.
  • The scram has NOT been reset.

Both Backup Scram valves are ______(1)_______ and _____(2)_____.

a. (1) energized (2) venting
b. (1) deenergized (2) venting
c. (1) energized (2) NOT venting
d. (1) deenergized (2) NOT venting Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 33 Written Exam

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34. The plant is nearing the end of a refueling outage with the following conditions:
  • The C IRM detector drive has been replaced
  • No IRMs are bypassed
  • All IRMs are reading 2/40 on Range 1
  • The CRS has given you post testing for C IRM Detector Drive, which requires the detector to be fully withdrawn and then fully inserted
  • The SRM/IRM Drive Panel is ON and IRMC is selected With the current conditions if you were to DEPRESS AND HOLD the DRIVE OUT pushbutton on the SRM/IRM Drive Control Panel the C IRM would
a. NOT drive out.
b. drive out until the OUT light came on.
c. drive out until the Rod Block activated.
d. drive out until the INOP light for C IRM came on.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 34 Written Exam

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35. Which of the following plant electrical systems supplies power to the detector and auxiliary trip units of the Source Range Monitoring (SRM) System?
a. 24 VDC station batteries
b. 125 VDC station batteries
c. 120 VAC Instrument AC
d. 120 VAC Reactor Protection System Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 35 Written Exam

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36. The plant is operating at 93% thermal power.
  • One D level LPRM assigned to the F APRM fails upscale Which of the following describes the affect of this failure on the value of computer point C179, NSSS1 CORE THERMAL POWER (MWTH)?
a. F APRM reading will increase causing C179 to INCREASE.
b. F APRM reading will increase, however, since it is bypassed C179 will REMAIN THE SAME.
c. LPRMs do NOT input into the Reactor Heat Balance Equation and therefore C179 will REMAIN THE SAME.
d. F APRM readings will decrease because the D Level LPRM upscale reading is automatically rejected causing C179 to DECREASE.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 36 Written Exam

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37. The plant was operating at 93% thermal power when a FEED LINE BREAK occurred.
  • RPV level is 110 and steady.
  • 1A1 and 1A2 open circuit transferred to 1X3, Start-up transformer.
  • The NSPEO reported that the leak was on the RPV side of MO-4442, RX FEEDWATER LOOP B INLET STOP CHECK.
  • Based on the report from the NSPEO, the control room operators closed MO-4442 in an attempt to isolate the B Feedwater header.
  • The NSPEO reports that the leak has slowed but is still in progress.

Which of the following systems could be supplying the leak?

a. HPCI
b. RCIC
c. RWCU
d. A RFP Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 37 Written Exam

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38. After an accident with no operator action, which one of the following describes the response of the ADS system to depressurize the reactor and allow injection?
a. As soon as any low pressure ECCS pump breaker is CLOSED AND reactor water level reaches low-low-low, the ADS valves will open.
b. With any ECCS pump breaker CLOSED AND two minutes after reactor water level reaches low-low-low level, the ADS valves will open.
c. As soon as any low pressure ECCS pump reaches normal discharge pressure AND reactor water level reaches low-low-low, the ADS valves will open.
d. With any low pressure ECCS pump at normal discharge pressure AND two minutes after reactor water level reaches low-low-low level, the ADS valves will open.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 38 Written Exam

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39. The plant is operating at 93% thermal power when RIM-7606A, REACTOR BUILDING VENT SHAFT RAD MONITOR, fails causing a complete PCIS Group 3 isolation on the A side.

How many of the following units are isolated, and what is the MINIMUM number of keys required to restore all monitors to service?

a. 2 isolated 2 keys
b. 2 isolated 4 keys
c. 4 isolated 2 keys
d. 4 isolated 4 keys Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 39 Written Exam

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40. Which of the following describes how power is provided to the solenoids on the Safety Relief Valves (SRVs)?
a. ADS SRV solenoids can only be supplied by Division 1 125 VDC power and LLS SRV solenoids can only be supplied by Division 2 125 VDC power.
b. LLS SRV solenoids can only be supplied by Division 1 125 VDC power and ADS SRV solenoids can only be supplied by Division 2 125 VDC power.
c. Division 1 SRV solenoids can only be supplied by Division 1 125 VDC power and Division 2 SRV solenoids can only be supplied by Division 2 125 VDC power.
d. All SRV solenoids can be supplied by either division of 125 VDC.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 40 Written Exam

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41. The plant is in Mode 5 with the cavity flooded to 340 and the RPV Head removed.

The loss of which of the following will affect the ACCURATE INDICATION of RPV water level?

a. CRD system
b. Instrument Air
c. A FEEDWATER INVERTER
d. 1Y23, UNITERUPTABLE AC POWER Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 41 Written Exam

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42. (Refer to the picture on the following page of FIC-5828A, INLET AIR FLOW CONTROLLER) 1V-SGT-001A, A SBGT TRAIN, has been started per OI-170, Standby Gas Treatment System, Section 5.2, Manual Initiation of the SBGT System Using Test Pushbuttons to support a Troubleshooting Instruction Form (TIF) that allows the System Engineer to observe system valve response.

The TIF directs the operator to adjust system flow, so the operator has dialed the thumbwheel on FIC-5828A, INLET AIR FLOW CONTROLLER, down in AUTO to observe current system flow

1) What action can the operator take to raise A SBGT flow rate?
2) And how will this action affect FIC-5828A indications?
a. 1) Open AV-7604U, REFUEL POOL TO SBGT INLET VALVE.
2) FIC-5828A controller output will DECREASE as flow indication INCREASES.
b. 1) Dial the thumbwheel (setpoint) FIC-5828A, INLET AIR FLOW CONTROLLER, up in AUTO.
2) FIC-5828A controller output will DECREASE as flow indication INCREASES
c. 1) Direct the Second Assistant to secure 1V-EF-13A/B, AIR EJECTOR ROOM EXHAUST FANS, at Panel 1C-140.
2) FIC-5828A flow indication will INCREASE and controller output will REMAIN THE SAME.
d. 1) Start a second 1V-EF-18A/B, OFFGAS STACK FAN, at Panel 1C-24.
2) FIC-5828A flow indication will INCREASE and controller output will REMAIN THE SAME.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 42 Written Exam

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43. The plant was operating at 50% thermal power when 1C08A (A-2), BUS 1A1 LOCKOUT TRIP OR LOSS OF VOLTAGE, annunciator activates.

Which of the following would cause bus 1A1 to be LOCKED OUT?

a. 1A1 Bus voltage at 800 VAC
b. 1X2, AUXILIARY TRANSFORMER, secondary ground
c. 1D11 Ckt 5, 1A1 CONTROL POWER, tripped
d. 1X3, START-UP TRANSFORMER, secondary output voltage 2500 VAC Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 43 Written Exam

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44. Given the following:
  • Uninterruptible AC (UPS) is being powered from 1Y2, INSTRUMENT AC TRANSFORMER
  • 1D45, UPS AC INVERTER, is energized and in a normal line up
  • 1Y4, UPS AC REGULATING TRANSFORMER, is energized and in a normal line up
  • An operator has been sent to restore UPS to the preferred power supply Which of the following alarms could be expected simultaneously with 1C08A (A-8),

UNINTERUPTABLE AC 1Y23 UNDERVOLTAGE OR INVERTER TROUBLE during restoration?

(There is no failure in the system operation.)

a. 1C04B (A-9), RWCU PUMP LOW FLOW
b. 1C04A (C-5), A RECIRC MG SCOOP TUBE LOCK
c. 1C23 (D-4), WELL WATER CONTROLLER(S) SIGNAL LOSS
d. 1C03C (D-3), CST A/B LO LEVEL HPCI/RCIC SUCTION TRANSFER INITIATE Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 44 Written Exam

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45. Are any PUMP MOTORS in the Turbine Building powered by 250 VDC? If yes, how many are there?
a. There are NO 250 VDC pump motors in the Turbine Building.
b. There is a total of one (1) 250 VDC pump motor in the Turbine Building.
c. There are a total of two (2) 250 VDC pump motors in the Turbine Building.
d. There are a total of three (3) 250 VDC pump motors in the Turbine Building.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 45 Written Exam

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46. The plant is preparing for a startup.
  • STP 3.8.1-06, Standby Diesel Generator Operability Test (Fast Start), is in progress for 1G-31, A SBDG
  • The next step of the STP is When the synchroscope is at the 12 oclock position, momentarily place the 4KV BREAKER 1A311 A DIESEL GENERATOR 1G-31 control switch in CLOSE
  • BEFORE 1A311 is taken to CLOSE, 1C08A (A-5), 1A3 BUS LOCKOUT, activates Which of the following is the correct action for the Diesel and 1A3 for this situation?
a. Shutdown 1G-31 to prevent overheating.
b. Return 1G-31 to Standby Readiness because 1G-31 tripped on the 1A3 Lockout.
c. Allow 1G-31 to run until one attempt to reset the 1A3 Lockout has been made.
d. Allow 1G-31 to run and cross-connect ESW IAW OI-454, Emergency Service Water.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 46 Written Exam

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47. (Refer to the picture of 1K3 on the following page for the following question.)

What is a function of the compressor pictured on the next page?

This compressor provides

a. a BACKUP source of Instrument Air to the T-Ring Seal on CV-4301, OUTBOARD TORUS VENT ISOLATION VALVE.
b. a BACKUP source of Instrument Air to the air operator on CV-4371A, CONTAINMENT NITROGEN SUPPLY ISOLATION.
c. the NORMAL source of Instrument Air to the A Standby Gas Treatment Train Fan 1V-EF-15A flow control vanes.
d. the NORMAL source of Instrument Air to LE-2901, INTAKE STRUCTURE RIVER WATER LEVEL DETECTOR.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 47 Written Exam

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48. How many Liquid Process Radiation Monitors are installed for the Residual Heat Removal Service Water (RHRSW) and Emergency Service Water (ESW) systems and what points do they monitor?
a. One (1) Process Radiation Monitor It monitors the combined RHRSW/ESW return flow to the Cooling Towers.
b. Two (2) Process Radiation Monitors One monitors the combined RHRSW/ESW return flow to the Cooling Towers.

One monitors the combined RHRSW/ESW return flow to the Discharge Canal.

c. Three (3) Process Radiation Monitors One monitors RHRSW return flow to the Cooling Towers.

One monitors ESW return flow to the Cooling Towers.

One monitors the combined RHRSW/ESW return flow to the Discharge Canal.

d. Four (4) Process Radiation Monitors One monitors RHRSW return flow to the Cooling Towers.

One monitors RHRSW return flow to the Discharge Canal.

One monitors ESW return flow to the Cooling Towers.

One monitors ESW return flow to the Discharge Canal.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 48 Written Exam

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49. The plant was scrammed from 93% thermal power. The following conditions now exist:
  • Reactor thermal power is currently 6%
  • Torus water temp is 130°F and rising
  • RPV pressure is 1000 psig and being controlled by LLS
  • The CRS directs you to inject SBLC The bases for injecting with SBLC before exceeding the Boron Injection Initiation Temperature (BIIT) curve in this plant condition is to ensure
a. sufficient boron is injected to mitigate the effects of cooldown of the reactor coolant on reactivity.
b. Hot Shutdown Boron Weight is injected before Torus temperature exceeds the Heat Capacity Limit curve.
c. boron injection is started prior to reaching the Torus temperature that requires the reactor to be manually scrammed.
d. the least amount of soluble boron is injected to maintain the reactor shutdown under all conditions before Torus temperature exceeds the Heat Capacity Limit Curve.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 49 Written Exam

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50. (Refer to the picture on the following page of 1C03, RCIC section)

The operating crew is responding to a plant transient. The 1C05 operator has manually started RCIC in the CST to CST mode.

While acknowledging annunciators, the BOP operator notices that RCIC is pumping at 400 gpm and that annunciator 1C04C (B-6), RCIC VACUUM TANK LO LEVEL, is alarming. He then observes the control panel indications provided.

Which of the following actions, if any, will be necessary?

a. The BOP operator will have to stop 1P-227, GLAND SEAL VACUUM PUMP.
b. The BOP operator will have to start 1P-228, RCIC CONDENSER CONDENSATE PUMP.
c. The BOP operator will have to open MO-2426, RCIC CONDENSER/LUBE OIL COOLER SUPPLY.
d. No actions will be necessary because RCIC continues to operate satisfactorily.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 50 Written Exam

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51. The following conditions exist:
  • The plant is being cooled down with the Main Condenser unavailable per IPOI-4, Shutdown
  • RHR and RHRSW flows are maximized in the Torus Cooling mode
a. Alternate all six SRVs to avoid overheating of any one SRV pilot assembly.
b. Alternate all six SRVs to avoid overheating any localized areas of the Torus.
c. Operate one SRV for the entire process to restrict the thermal stresses to one tailpipe.
d. Operate one SRV for the entire process to achieve a more predictable rate in the rise of Torus water temperature.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 51 Written Exam

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52. The plant is operating at 93% thermal power with the following conditions:
  • 1K90A in LEAD, 1K90B in LAG, 1K90C in LAG-LAG
  • 1XR2 deenergized due to an insulator failure
  • 1BR91/1BR92 failed to crosstie due to a failure of Instrument Air Bus AUTO TRANSFER control circuit
  • 1BR91/1BR92 will be MANUALLY cross tied
  • 1BR9-200, 1BR92 SUPPLY BREAKER, has been manually opened Which of the following correctly describes the impact of manually closing 1BR9-300, 1BR91/1BR92 CROSSTIE, on 1K90B?
a. 1K90B will remain idle and return to standby readiness.
b. 1K90B must be selected to Lag-Lag prior to this cross-connect so it will NOT automatically start.
c. 1K90B will automatically start and run unloaded until it automatically shuts down after approximately 20 minutes.
d. 1K90B will automatically start and run unloaded until it is manually secured by depressing the RESET-START pushbutton.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 52 Written Exam

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53. The plant is operating at 35% thermal power with 1P-4A, A CIRC WATER PUMP and A Cooling Tower in operation.

Which of the following conditions would cause 1P-4A to trip?

a. Circ Water Pit level lowering to 13 ft
b. Losing 1Y11, Instrument AC Division 1
c. Losing 1Y23, 120 VAC Uninterruptible power supply
d. Closing MO-4208, HP CONDENSER 1E-7B SOUTH WATER BOX OUTLET Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 53 Written Exam

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54. During a reactor startup, a single notch rod withdrawal is initiated. The following indications are observed at 1C05:
  • ROD IN light momentarily illuminates followed by the ROD OUT light illuminating then the SETTLE light illuminating. The ROD OUT light de-energizes followed by the SETTLE light de-energizing.
  • Drive water flow indicated approximately 4 gpm when the ROD IN light was illuminated then dropped to approximately 2 gpm when the ROD OUT light illuminated.
  • Drive water differential pressure went from initially indicating 260 psid to 200 psid during the rod out portion of the rod movement, then stabilized at 260 psid approximately 1 minute after the rod movement was completed Are these indications correct for the above stated task?
a. These are the expected indications during a rod withdrawal.
b. These are abnormal indications since the ROD IN light would NOT illuminate during a rod withdrawal.
c. These are abnormal indications due to the drive water flow being too low during the ROD OUT portion of the sequence.
d. These are abnormal indications due to the drive water differential pressure fluctuation during the rod movement.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 54 Written Exam

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55. (Refer to the picture on the following page of the Rod Worth Minimizer.)

A reactor shutdown is in progress with the following conditions:

  • rod sequence step 16
  • Insert limit of 00 and a Withdrawal limit of 12
  • at position 12
  • rod sequence step 15
  • Insert limit of 00 and a Withdrawal limit of 12
a. Figure A
b. Figure B
c. Figure C
d. Figure D Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 55 Written Exam

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56. Which ordered list below is the correct configuration to describe the electrical power supply 1P-201A, A REACTOR RECIRCULATION PUMP?
a. Non-Essential Bus 1A1, Drive Motor, Generator, RPT Breaker 1A501, RPT Breaker 1A601, 1P-201A Recirc Pump Motor
b. Non-Essential Bus 1A1, RPT Breaker 1A501, RPT Breaker 1A601, Drive Motor, Generator, 1P-201A Recirc Pump Motor
c. Essential Bus 1A3, RPT Breaker 1A501, RPT Breaker 1A601, Drive Motor, Generator, 1P-201A Recirc Pump Motor
d. Essential Bus 1A3, Drive Motor, Generator, RPT Breaker 1A501, RPT Breaker 1A601, 1P-201A Recirc Pump Motor Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 56 Written Exam

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57. A plant start-up is in progress with the following conditions:
  • Reactor pressure has been raised from 200 psig to 400 psig over the last 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />
  • A RWCU pump is running with both Filter Demineralizers (F/D) in service
  • RWCU NRHX Outlet Temperature is 129°F and stable
  • RWCU pressure is 400 psig
  • A RWCU F/D flow is 63 gpm
  • B RWCU F/D flow is 66 gpm Which operator action is appropriate per OI-261, Reactor Water Cleanup System, to establish normal RWCU system parameters?
a. Throttle open MO-2723, CLEANUP DEMIN BYPASS
b. Throttle open MO-2701, OUTBD CLEANUP SUCTION ISOL
c. Throttle open MO-2740, RWCU RETURN HEADER OUTBOARD ISOLATION
d. Throttle open CV-2729, CLEANUP SYSTEM DRAIN HEADER CONTROL VALVE Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 57 Written Exam

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58. (Refer to the pictures on the following page)

A TIP trace was being performed for only channel C-7 at the request of the Reactor Engineer.

While the TIP traverse was in progress, a spurious PCIS Group 2 Isolation signal has initiated, and the CRS has directed the operators to verify that the isolation is complete.

Which of the indications are consistent with a COMPLETE Group 2 isolation of the TIP system PCIS isolation valves?

a. Figure A
b. Figure B
c. Figure C
d. Figure D Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 58 Written Exam

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59. (Refer to the picture on the following page of Channel A RBM)

The reactor was at 70% core thermal power with a control rod sequence exchange in progress with the following conditions:

  • APRMs B and C are bypassed
  • No anticipated alarms were briefed
  • Control rod 22-19 was being withdrawn from position 00 to position 12 using single notch withdrawal When the operators withdrew control rod 22-19 from position 8 to position 10 the following actions occurred:
  • The Reactor Engineer confirmed that the proper withdrawal sequence was being used and the correct rod was withdrawn
  • The OFFICIAL 3D CASE showed expected values for all thermal limits
  • Channel A Rod Block Monitor (RBM) indications provided on the next page Based on these indications, what action(s) will be needed in regards to the A RBM in order to continue the sequence exchange?
a. Unbypass C APRM
b. Select another rod and then re-select rod 22-19
c. Bypass the A RBM and write a Work Request Card
d. Re-insert rod 22-19 until 1C05B (B-6), RBM UPSCALE OR INOP, clears Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 59 Written Exam

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60. A plant startup is in progress and conditions have been met for placing the Moisture Separator Reheater (MSR) 2nd Stage Reheat in service.

At 1C105, MSR AUTO LOADING PANEL, TIC-1097A and B, LOW LOAD VALVE CONTROLLERS, are in MANUAL.

In accordance with OI-646, Extraction Steam System, what is the PREFERRED heat-up rate for the MSR 2nd Stage Reheater tubes in this situation?

a. 25°F/15 min
b. 25°F /30 min
c. 80°F/hour
d. 125°F/hour Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 60 Written Exam

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61. (Refer to the drawing of EHC logic on the following page)

The plant is at 93% thermal power.

Using the schematic provided, identify how the SIGNAL VALUES at the points marked A and B would change if one Safety Relief Valve were to FAIL OPEN in this situation.

a. Signal Value A Lower Signal Value B Lower
b. Signal Value A Lower Signal Value B Higher
c. Signal Value A Higher Signal Value B Lower
d. Signal Value A Higher Signal Value B Higher Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 61 Written Exam

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62. (Refer to the Estimated Capabilities curve on the following page)

The Main Generator is operating with the following parameters:

  • 600 MWE
  • 0 MVARS
  • Generator H2 Pressure is 45 psig
  • All Main Generator controls are in a normal line up The maximum LEADING MVARS that could be picked up are ____(1)____, however if H2 Pressure were to lower to 30 psig then the maximum LEADING MVARS would be _____(2)_____.
a. (1) 115 MVARs (2) 20 MVARs
b. (1) 105 MVARs (2) 105 MVARs
c. (1) 250 MVARs (2) 170 MVARs
d. (1) 290 MVARs (2) 170 MVARs Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 62 Written Exam

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63. (Refer to the picture on the following page)

The plant is steady state, operating at 25% thermal power with three (3) Condensate Filter Demineralizer beds in service. There are no evolutions in progress.

What is WRONG with operating in the configuration as shown in the picture?

a. MO-1708, Condensate Filter Demineralizer (Filter Demin) Bypass Valve should be CLOSED.
b. MO-1546, LP Feedwater Heater Bypass Isolation (LP Heater 3, 4, 5 Bypass) Valve should be throttled OPEN.
c. MO-1631, Feedwater Start-Up Isolation (Start-Up Feed Reg. Isolation) Valve should be OPEN.
d. MO-1636, Feedwater Heater 1E-6A Outlet To Reactor (B Feedline Block) Valve should be CLOSED.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 63 Written Exam

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64. The plant is operating at 70% thermal power with two Reactor Feed Pumps in operation.

In this lineup, one of the Feed Reg valves starts to fail closed.

  • RPV level is LOWERING
  • Final Feedwater Temperature has NOT CHANGED YET
  • The associated Feed Pump Recirc Valve has NOT OPENED YET Which of the following correctly describes the effect of this malfunction on Core Inlet Subcooling for this short period of time?
a. There will be NO EFFECT on Core Inlet Subcooling until Final Feedwater Temperature starts to change.
b. There will be NO EFFECT on Core Inlet Subcooling until the associated Feed Pump Recirc Valve comes OPEN.
c. There is LESS Core Inlet Subcooling at this time because there is less Feed flow to the RPV.
d. There is MORE Core Inlet Subcooling at this time because RPV level is already lower.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 64 Written Exam

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65. (Refer to the picture on the following page for initial conditions)

The plant was operating at 93% thermal power with the selected Offgas system parameters shown on the following page.

Some time later the following occurred:

  • 1C-34 (C-3), OFFGAS JET COMPRESSOR LO STEAM FLOW, activated
  • NSPEO reports Jet Compressor Motive Steam Flow is 3950 lbm/hr
  • NSPEO reports Jet Compressor Motive Steam Pressure is 265 psig Predict the effects on the following HWC and Offgas flows for these conditions:
1) (HWC) FIC-8920, OFFGAS O2 FLOW CONTROLLER
2) (Offgas) FR-1374, SJAE FLOW TO OFFGAS (Channel 1, Red Pen)
a. 1) 3 scfm and steady
2) 32.8 scfm
b. 1) <3 scfm and ramping down
2) 0 scfm
c. 1) 0 scfm
2) 32.8 scfm
d. 1) 0 scfm
2) 0 scfm Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 65 Written Exam

1 Point

66. There is a reactor start up in progress with the reactor near criticality. The ANSOEs relief enters the Control Room for turnover.

Is the ANSOE allowed to perform a shift turnover without higher authorization?

If YES, correctly identify the governing procedure for such a turnover.

If NO, correctly identify who must authorize the ANSOE to perform the shift turnover.

a. Yes; The Bargaining Unit Contract directs union workers to turnover after 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
b. Yes; ACP 101.4, Overtime Limits and Requirements, directs station employees to turnover after 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
c. No; The off-going and on-coming Shift Supervision determines when the plant or watchstation are stable enough for shift turnover.
d. No; The off-going NSOE determines when the plant is stable enough for shift turnover.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 66 Written Exam

1 Point

67. Per ACP 110.1, Conduct of Operations, in which of the following in-plant scenarios shall the associated Annunciator(s) be reported to the Control Room operators and relayed to the CRS as an UNEXPECTED alarm(s)?
a. 1C80 (C-1 through C-5), FILTER DEMINERALIZER 1T-13(A-E) LOW FLOW, activates immediately following a reactor scram from 93% power
b. 1C417 (B-4), SULFITE SOLUTION TANK LEVEL LOW, activates 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> into the Circ Water Chlorination procedure
c. 1C136 (B-2), LOW FLOW B, activates while taking the B Fuel Pool Demineralizer Bed from FILTER to HOLD
d. 1C94 (A-1), ENGINE OVERSPEED, annunciator activates after tripping the fuel racks to roll 1G-21, B SBDG, when returning it to standby readiness Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 67 Written Exam

1 Point

68. In accordance with OI-416, RHR Service Water, which of the following parameters is used to declare a RHRSW subsystem INOPERABLE as conditions degrade due to bio-fouling?

During bio-fouling problems, an RHRSW subsystem is declared INOPERABLE when

a. 1S-90A/B, RHRSW STRAINERS, auto backwash feature fails.
b. there is a high P reading across 1S-90A/B, RHRSW STRAINERS.
c. V-46-28[V-46-16], A[B] RHRSW STRAINERS BYPASS VALVE, is opened.
d. there is a high P reading across 1E-201A/B, RHR HEAT EXCHANGER.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 68 Written Exam

1 Point

69. Instrument Techs are going to perform a Surveillance Test Procedure (STP). They will need the assistance of the following operators:
  • A Control Room Operator to acknowledge annunciators and computer alarm points
  • An In-Plant operator to open a valve to connect a test gage to the system
  • A Senior Reactor Operator from the Work Control Center to serve as the Test Conductor The Instrument Techs have read the briefing material and Special Precautions and signed on the STP Authorization Sheet.

Is this adequate? If not, identify who else is required to read the briefing material and Special Precautions and sign on the STP Authorization Sheet.

a. This is adequate. The Instrument Techs are responsible for this STP.
b. The Test Conductor and the In-Plant Operator must also be briefed and sign on the STP.
c. The Test Conductor and the Control Room Operator must also be briefed and sign on the STP.
d. The Test Conductor, Control Room Operator and the In-Plant Operator must also be briefed and sign on the STP.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 69 Written Exam

1 Point

70. The initial plant conditions are as follows:
  • Refueling is in progress with the Reactor Refueling Cavity filled
  • The Fuel Pool Gates are removed
  • Fuel Pool Cooling is in service with one Demineralizer at 450 gpm
  • The Main Condenser and Condensate Storage Tanks are available In this condition a protective relay fails causing an isolation of RWCU, which causes the Skimmer Surge Tank level to begin to rise.

Do the operators who are supporting refueling have another method of stabilizing refueling water inventory from the Control Room WITHOUT securing CRD?

If yes, identify the method.

If no, identify how inventory can be stabilized from outside the Control Room.

a. Yes; Control Room Operators can drain from RHR by verifying that Radwaste is lined up and opening MO-1936 and MO-1937, RHR DRAIN TO RADWASTE ISOLATION valves.
b. Yes; Control Room Operators can drain from the Main Steam System by opening MO-4423 and MO-4424, MAIN STEAM LINE DRAIN valves, and draining through MO-1043, MSL HEADER DRAINS BYPASS, to the Main Condenser.
c. No; but in-plant operators can drain from the Fuel Pool Cooling System by lining up to either the CSTs or the Waste Surge Tank and opening MO-3425, FUEL POOL DRAIN.
d. No; but in-plant operators can drain from the Fuel Pool Cooling System by clearing the Section Tag and reopening V-34-49, REACTOR SEAL CAVITY & FUEL POOL GATE DRAIN LINE ISOLATION valve, (in the RB 3rd Floor Cage) to drain to the Reactor Building Equipment Drain Sump.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 70 Written Exam

1 Point

71. Which of the following is NOT an example of SOURCE TERM REDUCTION as defined by ACP-1411.1, The ALARA Emphasis Program?
a. The Scram Discharge Volume was wrapped with lead blankets.
b. The area around the CRD Discharge Filter was decontaminated.
c. The floor drain of the CRD Repair Room was flushed to remove a hot spot.
d. The stellite rollers on the control rods were replaced to reduce cobalt in the reactor coolant system.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 71 Written Exam

1 Point

72. An area is posted Locked High Radiation Area when radiation levels are GREATER THAN

________(1)________. An area is posted Highly Contaminated Area when contamination levels are GREATER THAN ____________(2)____________.

a. (1) 500 Rads (2) 20 dpm/100 cm2 Alpha
b. (1) 1000 mR/Hr (2) 1000 dpm/100 cm2 Beta-Gamma
c. (1) 1000 mR/Hr (2) 1000 dpm/100 cm2 Alpha
d. (1) 500 Rads (2) 50,000 dpm/100 cm2 Beta-Gamma Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 72 Written Exam

1 Point

73. To place the Reactor subcritical with reactor power below the heating range, reduce RPV temperature, and maintain RPV water level above the top of active fuel is the bases of which EOP?
a. EOP 1
b. EOP 2
c. EOP 4
d. ALC Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 73 Written Exam

1 Point

74. The plant was operating at 93% thermal power when:
  • The Torus developed an unisolable leak
  • EOP-1, RPV Control, was entered due to RPV level lowering below 170 just after the scram
  • RPV level has since been restored to 190
  • RPV pressure is 920 psig and being controlled by EHC Pressure Set As the Balance of Plant operator you overhear the CRS consulting the OSM for concurrence to transition to Emergency Depressurization (ED) because Torus water level continues to lower.
1) Would it be appropriate to recommend SEP 307, Rapid Depressurization with Bypass Valves, in anticipation of ED for this particular transient?
2) If only one SRV could be opened during the ED, would it be appropriate to recommend SEP 307 as an Alternate Depressurization System after ED was attempted?
a. 1) APPROPRIATE before ED
2) APPROPRIATE after ED
b. 1) APPROPRIATE before ED
2) NOT APPROPRIATE after ED
c. 1) NOT APPROPRIATE before ED
2) APPROPRIATE after ED
d. 1) NOT APPROPRIATE before ED
2) NOT APPROPRIATE after ED Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 74 Written Exam

1 Point

75. During transient conditions, after the CRS has announced entry into AOPs or EOPs, operators are then allowed to announce only those significant alarms needed to implement those procedures.

Given the following postulated scenario:

  • Head vents are open
  • Shortly after that, a Group 4 Isolation occurred due to lowering RPV level
  • CRS assigned you to panel 1C05
a. No; all significant annunciators have either a blue or red lens.
b. No; all annunciators on this panel are associated with manual installation of EOP Defeats.
c. Yes; the annunciator could be a high area WATER LEVEL EOP-3 entry condition.
d. Yes; the annunciator could be a high area TEMPERATURE EOP-3 entry condition.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm_Rev2.doc Page 75 Written Exam

Figure for Question # 63

a. b. c.

d.

Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 63A_Rev2.doc Page 63A Written Exam

Figure for Question # 6 AOP-915 SHUTDOWN OUTSIDE THE CONTROL ROOM ATTACHMENT 5 INSTRUCTIONS FOR PLOTTING COOLDOWN

1. Read RPV pressure at 1C388 to the nearest 20 psig increment on PI-4564.
2. Find the corresponding saturation temperature in the table below.
3. Record on Attachment 6 the saturation pressure, temperature and elapsed time since cooldown was initiated.

Table of RPV Pressure Versus Saturation Temperature psig Temp (°F) psig Temp (°F) psig Temp (°F) 1100 558 680 502 280 415 1080 556 660 499 260 409 1060 553 640 495 240 402 1040 551 620 492 220 395 1020 549 600 488 200 387 1000 546 580 485 180 380 980 542 560 481 160 371 960 541 540 477 140 361 940 539 520 474 120 350 920 536 500 470 100 338 900 534 480 466 80 324 880 531 460 461 60 307 860 528 440 457 40 287 840 526 420 452 20 259 820 523 400 448 0 212 800 520 380 443 780 517 360 438 760 514 340 431 740 511 320 427 720 508 300 421 700 505 AOP 915 Page 69 of 78 Rev. 29 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 6A_Rev2.doc Page 6A Written Exam

Figure for Question # 12 T=0 T=0 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 12A_Rev2.doc Page 12A Written Exam

Figure for Question # 28 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 28A_Rev2.doc Page 28A Written Exam

Figure for Question # 32 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 32A_Rev2.doc Page 32A Written Exam

Figure for Question # 42 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 42A_Rev2.doc Page 42A Written Exam

Figure for Question # 47 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 47A_Rev2.doc Page 47A Written Exam

Figure for Question # 50 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 50A_Rev2.doc Page 50A Written Exam

Figure for Question # 55 SELF-TEST: OK SEQUENCE: A1 MODE: OPERATE BLOCKS: INSERT WITHDRAW STEP: 016 POWER: BELOW LPSP SR 10-11:12 SE IB WB IE 02-19:00 A1-016 WE 10-11:00 HELP DISPLAY OFF ETC Figure A SELF-TEST: OK SEQUENCE: A1 MODE: OPERATE BLOCKS: INSERT WITHDRAW STEP: 016 POWER: BELOW LPSP SR 02-19:12 SE IB WB IE 02-19:00 A1-016 HELP DISPLAY OFF ETC Figure B SELF-TEST: OK SEQUENCE: A1 MODE: OPERATE BLOCKS: INSERT WITHDRAW STEP: 016 POWER: BELOW LPSP SR 10-11:12 SE IB WB A1-016 HELP DISPLAY OFF ETC Figure C SELF-TEST: OK SEQUENCE: A1 MODE: OPERATE BLOCKS: INSERT STEP: 016 POWER: BELOW LPSP SR 10-11:12 SE IB WB A1-016 HELP DISPLAY OFF ETC Figure D Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 55A_Rev2.doc Page 55A Written Exam

Figure A ZIC-4574C TIP CHANNEL C DRIVE CONTROL UNIT Figure C PCIS Figure B Channel MIMIC C Valve Control Figure D PCIS STATUS BOARD Reactor Operator, 50007 Topic 05-ILC-RO-NRC

-ILC-RO-NRC-written_xm-Attchmnt 58A.ppt Page 58A Written Exam

Figure for Question # 59 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 59A_Rev2.doc Page 59A Written Exam

Figure for Question # 61 Signal Value A Signal Value B Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 61A_Rev2.doc Page 61A Written Exam

Figure for Question # 62 APPENDIX 1 ESTIMATED CAPABILITY CURVES GENERATOR REACTIVE CAPABILITY CURVE ATB 4 POLE 715225 KVA 1800 RPM 22000 VOLTS 0.95 PF 0.58 SCR 45 PSIG HYDROGEN PRESSURE 485 VOLTS EXCITATION 800 600 0.60

  • A 45 PSIG LAG 0.70 *

(OUT) 0.80

  • 0.90
  • B 200 B 0.98

100 MEGAVARS B

0 0 200 400 600 800 e

MEGAWATTS L Lin URA

-100 C C

-200 C 0.95

  • D 0.90
  • 0.85
  • 0.80
  • 0.60
  • 0.70 *

-400 LEAD (IN)

-600

  • PF (power factors)

CURVE AB LIMITED BY FIELD HEATING CURVE BC LIMITED BY ARMATURE HEATING CURVE CD LIMITED BY ARMATURE CORE END HEATING Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 62A_Rev2.doc Page 62A Written Exam

Figure for Question # 65 Reactor Operator, 50007 Rev. 2 Topic 05-ILC-RO-NRC 57_05-ILC-RO-NRC-written_xm-Attchmnt 65A_Rev2.doc Page 65A Written Exam

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