ML24005A103
| ML24005A103 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 01/05/2024 |
| From: | NRC/RGN-II |
| To: | |
| References | |
| Download: ML24005A103 (1) | |
Text
Form 4.2-3 Reactor Operator Written Examination Cover Sheet U.S. Nuclear Regulatory Commission Reactor Operator Written Examination Applicant Information Name:
Date:
Facility/Unit Region:
I II III IV Reactor Vendor/Type:
Start Time:
Finish Time:
Instructions Use the answer sheets provided to document your answers. Staple this cover sheet on top of the answer sheets. To pass the examination, you must achieve a final grade of at least 80 percent. You have 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> to complete this portion of the examination.
Applicant Certification All work done on this examination is my own. I have neither given nor received aid.
Applicants Signature Results Examination Points
________ Points Applicants Points
________ Points Applicants Grade
________ Percent ML24005A103
Name: ________________________________
MASTER ILT-15 NRC RO EXAM (75QS)
Form: 0 Version: 0
- 1.
Which ONE of the choices below identifies the power supply to the Unit 2 RWM Operator Display on panel 2H11-P603?
Vital AC, 2R25-S063 Instrument Bus 2A, 2R25-S064 Instrument Bus 2B, 2R25-S065 208/120V AC Power Cab, 2R25-S101 A.
B.
C.
D.
Monday, October 30, 2023 2:00:30 PM 1
MASTER ILT-15 NRC RO EXAM (75QS)
- 2.
Unit 1 is operating at 90% RTP.
One (1) Control Rod Drive Mechanism's (CRDM) ball check valve is stuck in its NORMAL configuration for this operating condition.
Subsequently, a spurious reactor scram occurs.
Based on the above conditions, which ONE of the choices below completes the following statements concerning the control rod associated with the failed ball check valve?
RPV pressure __________ assist in scramming this control rod.
The time it takes for the CRDM to insert the control rod to position 06 will __________.
will; be longer than the time it normally takes to reach position 06 will; NOT be affected by the malfunctioning ball check valve will NOT; be longer than the time it normally takes to reach position 06 will NOT; NOT be affected by the malfunctioning ball check valve A.
B.
C.
D.
Monday, October 30, 2023 2:00:30 PM 2
MASTER ILT-15 NRC RO EXAM (75QS)
- 3.
Unit 1 was operating at 100% RTP.
The Cleanup Leak Detection Indicator, 1G31-R615, on 1H11-P613, indicates 30 gpm and rising.
Note:
1G31-F001, RWCU Inboard Isolation 1G31-F004, RWCU Outboard Isolation Based on the above conditions, which ONE of the choices below completes the following statement?
At 56 gpm and rising, __________ will CLOSE __________.
ONLY the 1G31-F004; AFTER a time delay ONLY the 1G31-F004; IMMEDIATELY BOTH the 1G31-F001 and 1G31-F004; AFTER a time delay BOTH the 1G31-F001 and 1G31-F004; IMMEDIATELY A.
B.
C.
D.
Monday, October 30, 2023 2:00:30 PM 3
MASTER ILT-15 NRC RO EXAM (75QS)
- 4.
Unit 2 is shutdown with the 2E11-C002A, RHR Pump 2A, in Shutdown Cooling (SDC).
RWCU is in service controlling RWL.
The following occurs:
Time Event 10:00 2G31-F033, RWCU Dump valve, fails open and cannot be closed 10:35 RWL is +2 inches AND 2G31-F033 is isolated 10:40 RWL is restored to its normal band Based on the above conditions, which ONE of the choices below completes the following statement?
At 10:40, 2E11-F008, RHR SDC Suction valve, will __________ and 2E11-C002A, RHR Pump 2A, will be __________.
be CLOSED; TRIPPED be CLOSED; RUNNING remain OPEN; TRIPPED remain OPEN; RUNNING A.
B.
C.
D.
Monday, October 30, 2023 2:00:30 PM 4
MASTER ILT-15 NRC RO EXAM (75QS)
- 5.
Unit 1 is in Mode 4 with RHR Loop 1B operating in Shutdown Cooling (SDC) with RWL band of 32 - 42 inches.
Subsequently, a tube rupture occurs in RHR Heat Exchanger 1B.
At 10:00, RWL is 36 inches and changing at a rate of 2 inches per minute.
Based on the above conditions, which ONE of the choices below completes the following statements?
At 10:10, RWL will be __________ 36 inches.
At 10:20, SDC __________ be in service.
greater than; will greater than; will NOT less than; will less than; will NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:30 PM 5
MASTER ILT-15 NRC RO EXAM (75QS)
- 6.
Unit 2 has experienced a transient with the following conditions:
At 10:00, o HPCI is injecting and controlling RWL o Torus level is 148 inches and RISING 0.5 inches per minute o CST level is 4 feet 4 inches and LOWERING 0.25 inches per minute due to HPCI operation Based on the above conditions, which ONE of the choices below completes the following statement?
The EARLIEST listed time that CST level will begin to stabilize is __________.
When CST level begins to stabilize, it is due to __________ water level.
10:05; HIGH Torus 10:05; LOW CST 10:09; HIGH Torus 10:09; LOW CST A.
B.
C.
D.
Monday, October 30, 2023 2:00:30 PM 6
MASTER ILT-15 NRC RO EXAM (75QS)
- 7.
Unit 2 has experienced a transient with the following conditions:
o Core Spray pump 2B was injecting at full flow but begins to experience a fault resulting in the following flow rates:
At 10:00, 1900 gpm At 10:10, 1000 gpm At 10:20, 650 gpm At 10:30, 60 gpm Based on the above conditions, which ONE of the choices below completes the following statement?
The EARLIEST listed time that 2E21-F031B, Min Flow Valve, will be OPEN is ________.
10:00 10:10 10:20 10:30 A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 7
MASTER ILT-15 NRC RO EXAM (75QS)
- 8.
Unit 1 is operating at 100% RTP with the following:
o 1C41-C001A, SBLC pump 1A, is DANGER Tagged out of service for a pump leak Based on the above condition, which ONE of the choices below completes the following statements?
If a troubleshooting activity resulted in tripping the feeder breaker to __________,
NEITHER SBLC subsystem would be available to operate.
1R23-S003, 600 VAC 1C 1R23-S004, 600 VAC 1D 1R24-S018A 600 VAC MCC 1R24-S018B 600 VAC MCC A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 8
MASTER ILT-15 NRC RO EXAM (75QS)
- 9.
Which ONE of the choices below completes the following statements?
The Standby Liquid Control (SBLC) System line that senses pressure BELOW the core plate, is used in determining __________ dP.
If the above SBLC line fails, the ability to determine Core Flow __________ be affected.
Jet Pump; will Jet Pump; will NOT Core Spray Line Break Detection; will Core Spray Line Break Detection; will NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 9
MASTER ILT-15 NRC RO EXAM (75QS)
- 10.
Unit 2 is operating at 20% RTP when the following occurs:
At 10:00, 2B21-F022A, Inboard MSIV fully closes At 10:02, 2B21-F028D, Outboard MSIV fully closes At 10:04, 2B21-F022C, Inboard MSIV fully closes Based ONLY on the above conditions with respect to MSIV position input to the RPS Logic, which ONE of the choices below completes the following statements?
At 10:03, the TOTAL number of 2C71-K14, RPS Scram Relays, that are ENERGIZED is __________.
At 10:05, the TOTAL number of 2C71-K14, RPS Scram Relays, that are ENERGIZED is __________.
four (4);
zero (0) four (4);
four (4) eight (8);
zero (0) eight (8);
four (4)
A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 10
MASTER ILT-15 NRC RO EXAM (75QS)
- 11.
Unit 2 is operating at 5% RTP when the following occurs:
o Control Rod 22-39 is fully WITHDRAWN o The S48 reed switch for Control Rod 22-39 fails o 603-247, ROD DRIFT, alarm ILLUMINATES Based on the above conditions and IAW 34GO-OPS-065-0, Control Rod Movement, which ONE of the choices below completes the following statements?
For the position indication for Control Rod 22-39, the RWM will display __________.
Substituting rod position 48 in the RWM for Control Rod 22-39 __________
AUTOMATICALLY clear the Rod Drift alarm.
"FF";
will "FF";
will NOT "48" in inverse video; will "48" in inverse video; will NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 11
MASTER ILT-15 NRC RO EXAM (75QS)
- 12.
Unit 1 is performing a reactor startup IAW 34GO-OPS-001-1, Plant Startup.
The Unit 1 Reactor Mode switch is in the START & HOT STBY position.
Subsequently, the following occurs:
o IRM E becomes INOP due to its high voltage power supply output failing low o IRM F reaches 117/125 Based on the above conditions, which ONE of the choices below completes the following statements?
Alarm, REACTOR AUTO SCRAM SYSTEM A TRIP, 603-117, will be __________.
Alarm, REACTOR AUTO SCRAM SYSTEM B TRIP, 603-118, will be __________.
EXTINGUISHED; EXTINGUISHED EXTINGUISHED; ILLUMINATED ILLUMINATED; EXTINGUISHED ILLUMINATED; ILLUMINATED A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 12
MASTER ILT-15 NRC RO EXAM (75QS)
- 13.
Which ONE of the choices below completes the following statement?
The Unit 2 SRM Drive Motor Modules are powered by __________.
Vital AC, 2R25-S063 24/48 VDC Cabinet 2A, 2R25-S015 24/48 VDC Cabinet 2B, 2R25-S016 208/120V AC Power Cab, 2R25-S101 A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 13
MASTER ILT-15 NRC RO EXAM (75QS)
- 14.
A Unit 2 reactor startup is in progress with the following indications:
o All IRMs are indicating between 20/125 - 60/125 on Range 6 HIGHEST indicating SRMs:
o SRM A......................... 1.5 x 105 cps o SRM B......................... 8.0 x 104 cps Based on the above conditions, which ONE of the choices below completes the following statement?
The Reactor Manual Control "ROD OUT" light will be __________ due to __________.
EXTINGUISHED; SRM A ONLY EXTINGUISHED; BOTH SRM A and SRM B ILLUMINATED; SRM A ONLY ILLUMINATED; BOTH SRM A and SRM B A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 14
MASTER ILT-15 NRC RO EXAM (75QS)
- 15.
Unit 2 is operating at 88% RTP when the following occurs:
o Recirc Pump 2A trips o Power stabilizes inside the RPI on the Power to Flow map o Alarms on the APRM/OPRM Operator Display Screen (ODA) on 2H11-P603 panel are cycling ON/OFF 34AB-C51-001-2, Entry Into the RPI Or Reactor Operations with Inoperable OPRM System, has been ENTERED.
Based on the above conditions, which ONE of the choices below completes the following statement?
IAW 34AB-C51-001-2, a manual reactor scram is REQUIRED if __________ APRM peak to peak oscillations exceed a MINIMUM of __________ and rising.
ANY; 3%
ANY; 5%
MORE than ONE; 3%
MORE than ONE; 5%
A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 15
MASTER ILT-15 NRC RO EXAM (75QS)
- 16.
Unit 2 was operating at 100% RTP when the following valid alarm was received:
REACTOR VESSEL HIGH PRESSURE TRIP, 603-105 The NPO reports the following SPDS SRV indications:
Based on the above conditions, which ONE of the choices below completes the following statements?
When 603-105 first ALARMED, the SPDS Primary Display for RPV pressure background will be __________.
Using the above Figure 1, the MAXIMUM listed value that RPV pressure could have reached is __________.
orange; 1139 psig orange; 1129 psig red; 1139 psig red; 1129 psig A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 16
MASTER ILT-15 NRC RO EXAM (75QS)
- 17.
Unit 2 is operating at 100% RTP with a RCIC surveillance in progress when the following occurs:
o A steam leak develops on 2E51-C002, RCIC Turbine Based on the above conditions, which ONE of the choices below completes the following statement?
Ambient temperature and radiation levels will FIRST begin to RISE in the Unit 2 __________ diagonal.
Southeast Northeast Southwest Northwest A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 17
MASTER ILT-15 NRC RO EXAM (75QS)
- 18.
Unit 2 was operating at 100% RTP when a Cable Spreading Room fire required control room evacuation.
The following procedures are in progress:
o 31RS-OPS-001-2, Shutdown From Outside Control Room o 34AB-X43-001-2, Fire Procedure, Attachment 1, Safe Shutdown Actions, have been completed At 13:00, the following conditions exist:
o 2R22-S017, 125/250V DC SWITCHGEAR 2B De-energized o 2R25-S001, 125VDC Bus 2A De-energized Based on the above conditions, which ONE of the choices below completes the following statement?
The TOTAL number of ADS valves that will be AVAILABLE to AUTOMATICALLY OPEN on an ADS signal is __________.
seven (7) five (5) two (2) zero (0)
A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 18
MASTER ILT-15 NRC RO EXAM (75QS)
- 19.
A LOCA has occurred on Unit 2 resulting in Drywell pressure RISING to 20 psig.
Subsequently, o Drywell Sprays are placed in service o Drywell pressure is LOWERED to 1.0 psig.
Which ONE of the choices below completes the following statements?
The Drywell / Torus Vacuum Breakers will AUTOMATICALLY cycle while Drywell pressure is __________.
Monitoring for proper automatic operation of the Drywell / Torus Vacuum Breakers can be performed from __________.
RISING to 20 psig; panel 2H11-P602 AND locally at panel 2T48-P001 RISING to 20 psig; panel 2H11-P602 ONLY LOWERING to 1.0 psig; panel 2H11-P602 AND locally at panel 2T48-P001 LOWERING to 1.0 psig; panel 2H11-P602 ONLY A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 19
MASTER ILT-15 NRC RO EXAM (75QS)
- 20.
Unit 1 has experienced an ATWS with the following conditions:
At 10:00, o Reactor Power has stabilized at 10% RTP o RWL is 9 inches and steady o The OATC begins to LOWER RWL at rate of 3 inches per minute Based on the above conditions, which ONE of the choices below completes the following statements?
The EARLIEST listed time the MSIVs will AUTOMATICALLY isolate on RWL is __________.
IAW 31EO-EOP-100-1, Miscellaneous Emergency Overrides, __________ are used to prevent closure of the MSIVs.
10:37; jumpers 10:37; keylock switches 10:55; jumpers 10:55; keylock switches A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 20
MASTER ILT-15 NRC RO EXAM (75QS)
- 21.
Unit 2 was operating at 100% RTP when a transient occurs with the following conditions:
o RPV Pressure 800 psig o Torus Pressure 12 psig o Drywell Pressure 14 psig o 4160 VAC bus 2F DE-ENERGIZED Subsequently, Drywell Sprays are placed in service with RHR pump 2A at 6000 gpm.
Based on the above conditions, which ONE of the choices below completes the following statement?
RHR loop A discharge pressure will be approximately __________.
To ensure an effective drywell pressure reduction, the MINIMUM Drywell Spray flowrate __________ been achieved.
205 psig; has 205 psig; has NOT 370 psig; has 370 psig; has NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:31 PM 21
MASTER ILT-15 NRC RO EXAM (75QS)
- 22.
Unit 2 is operating at 100% RTP when 34AB-P51-001-2, Loss of Instrument or Service Air System or Water Intrusion into the Service Air System, is entered due to lowering air pressure.
The following conditions exist:
o 2P52-F565, Rx Bldg Inst N2 To Non-Int Air El. 185 Isol Vlv, Danger Tagged CLOSED o SCRAM VLV PILOT AIR HDR PRESS HIGH/LOW (603-131) is illuminated o CRD HYD TEMP HIGH (603-140) is illuminated Based on the above conditions and IAW 34AB-P51-001-2, which ONE of the choices below completes the following statements?
A Reactor scram __________ REQUIRED to be inserted at this time.
If the crosstie between Unit 1 and Unit 2 Service Air Systems CANNOT be opened, ALL OUTBOARD MSIVs __________ drift CLOSED as air pressure continues to LOWER.
is; will NOT is; will is NOT; will NOT is NOT; will A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 22
MASTER ILT-15 NRC RO EXAM (75QS)
- 23.
Unit 1 has experienced a transient and the Automatic Depressurization System (ADS)
AUTOMATICALLY actuated.
o RPV pressure LOWERS from 1000 psig to 39 psig o NO ADS control switches have been manipulated Which ONE of the choices below predicts the ADS valve light response on panel 2H11-P602?
ONLY the Red light is illuminated ONLY the Red and Green lights are illuminated ONLY the Red and Amber lights are illuminated The Red, Amber, and Green lights are ALL illuminated A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 23
MASTER ILT-15 NRC RO EXAM (75QS)
- 24.
Unit 2 is operating at 100% RTP with the following conditions:
o Feedwater Level Control is in three element control in AUTOMATIC o RWL is 36 inches o The 'A' Feedwater Flow signal to the Feedwater Control System suddenly fails downscale Based on the above conditions, which ONE of the choices below completes the following statements?
Alarm REACTOR VESSEL WATER LEVEL HIGH/LOW, 603-141, __________
ILLUMINATE.
Once the flow signal is restored, the Feedwater Control System __________
AUTOMATICALLY return to 3 Element Control.
will; will NOT will; will will NOT; will NOT will NOT; will A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 24
MASTER ILT-15 NRC RO EXAM (75QS)
- 25.
Which ONE of the choices below completes the following statements regarding the Unit 2 Standby Gas Treatment System (SBGT)?
The Unit 2 SBGT system utilizes ___________ cooling to remove heat from the filter assemblies.
The Unit 2 SBGT fans __________ have an AUTOMATIC trip on high filter train exhaust temperatures.
air; do air do NOT water; do water; do NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 25
MASTER ILT-15 NRC RO EXAM (75QS)
- 26.
During a UNIT 2 refueling outage, the U2 SS informs the BOP operator in-field personnel will be performing testing on the breaker for RHR pump 2A with the following test conditions:
o The breaker will be racked to the TEST position o The control power breaker will be CLOSED o The RHR pump breaker will be CLOSED locally Once the test conditions are MET, which ONE of the choices below identifies the expected lighting indications on panel 2H11-P601 for RHR pump 2A?
The RED indicating light will be __________.
The WHITE indicating light will be __________.
OFF; OFF OFF; ON ON; OFF ON; ON A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 26
MASTER ILT-15 NRC RO EXAM (75QS)
- 27.
Unit 1 is operating at 100% RTP when 600 V Bus 1D de-energizes.
Based on the above condition, which ONE of the choices below completes the following statement concerning the 1B RPS Motor Generator (MG) Set and the RPS Equipment Protection Circuit Breakers?
The RPS Equipment Protection Circuit Breakers 52-3B and 52-3D are expected to be in the __________ condition.
With NO additional operator actions, when power is restored to 600 V Bus 1D, the NPO will __________ the 1B RPS MG Set.
tripped (open);
confirm the AUTO start of tripped (open);
MANUALLY start reset (closed);
confirm the AUTO start of reset (closed);
MANUALLY start A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 27
MASTER ILT-15 NRC RO EXAM (75QS)
- 28.
Unit 2 is operating at 100% RTP with 125/250VDC Station Service Batteries 2A and 2B on "Equalize" charge.
Subsequently, o All Control Building Chillers and fans trip and can NOT be restored o Control Building temperatures start RISING Based on the above conditions, which ONE of the choices below completes the following statements?
With the U2 125/250VDC Station Service Batteries on "Equalize" charge, the 125/250VDC Station Service Battery Chargers output voltage will be __________ the battery voltage.
With Control Building temperatures RISING and NO operator actions, the 125/250VDC Station Service Battery __________.
equal to; Room Hydrogen concentrations will rise in each of the battery rooms equal to; Chargers will trip when their high temperature trip setpoint is reached greater than; Room Hydrogen concentrations will rise in each of the battery rooms greater than; Chargers will trip when their high temperature trip setpoint is reached A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 28
MASTER ILT-15 NRC RO EXAM (75QS)
- 29.
Unit 2 is operating at 100% RTP with the following conditions:
o 34SV-R43-013-2, Diesel Generator 2C 24 Month Operability Test, is in progress o EDG 2C is loaded to 2800 KW Subsequently, the site experiences a Loss of Offsite Power (LOSP).
Based on the conditions above, which ONE of the choices below completes the following statements?
EDG 2C load __________ remain at 2800KW.
EDG 2C __________ control knob MUST be re-positioned.
will; Load Limit will; Speed Droop will NOT; Load Limit will NOT; Speed Droop A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 29
MASTER ILT-15 NRC RO EXAM (75QS)
- 30.
Unit 1 and Unit 2 are experiencing a TOTAL loss of Off-Site power.
The Diesel Gen 1B Keylock control switch is in the REMOTE UNIT 1 position.
Subsequently, Unit 2 receives a LOCA signal.
Based on the above conditions, which ONE of the choices below completes the following statements?
EDG 1B is powering 4160 VAC bus __________.
EDG 1B is receiving cooling water from __________.
1F; 2P41-C002, Standby Diesel Service Water Pump 1F; Unit 1 Division 1 Plant Service Water 2F; 2P41-C002, Standby Diesel Service Water Pump 2F; Unit 1 Division 1 Plant Service Water A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 30
MASTER ILT-15 NRC RO EXAM (75QS)
- 31.
Which ONE of the choices below identifies a condition inside Primary Containment that will result in a Unit 2 Secondary Containment Isolation?
Drywell pressure of 1.90 psig Torus water level of 155 inches Drywell radiation level of 145 R/hr Hydrogen concentration of 2.5% in the Torus A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 31
MASTER ILT-15 NRC RO EXAM (75QS)
- 32.
Unit 1 is in Mode 1.
Unit 2 is in Mode 5 with a core off load in progress.
Subsequently, the following occurs:
o 600 VAC Bus 1C DE-ENERGIZES o 600 VAC Bus 1D DE-ENERGIZES o A fuel handling accident causes general area radiation to reach 500 mR/hr o Secondary Containment has received an ISOLATION signal Based on the above conditions, which ONE of the choices below completes the following statements?
Initially, the total number of SBGT trains in operation is __________.
Potential airborne contamination in the Main Control Room __________ be filtered by the MCREC system.
two (2);
will two (2);
will NOT four (4);
will four (4);
will NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 32
MASTER ILT-15 NRC RO EXAM (75QS)
- 33.
Unit 1 was operating at 100% RTP when the following occurs:
o Drywell pressure is 2.0 psig o 31EO-EOP-114-1, Preventing Injection Into The RPV From Core Spray And LPCI, has been completed Subsequently, an Emergency Depressurization is performed due to Secondary Containment issues.
o RPV pressure is 50 psig o RWL is currently -160 inches o RHR pumps will be used to restore RWL (ONLY pumps available)
Based on the above conditions, which ONE of the choices below completes the following statements?
Once RHR is injecting, the LOWEST listed RWL at which 1E11-F017A/B are ALLOWED to be throttled, is __________ as indicated on 1B21-R623A/B, Fuel Zone.
Rapid depressurization of the RPV may result in erratic RWL indication due to flashing in the instrument __________ leg.
-99 inches; variable
-99 inches; reference
-154 inches; variable
-154 inches; reference A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 33
MASTER ILT-15 NRC RO EXAM (75QS)
- 34.
Unit 2 is in Mode 2 performing a reactor startup when an LPRM fails UPSCALE.
Based on the above conditions, which ONE of the choices below completes the following statements?
The LPRM failure mode that would cause the above condition is __________.
The TOTAL number of LPRMs inputting into each APRM is __________.
loss of detector gas pressure 17 loss of detector gas pressure 31 water leaking into the detector 17 water leaking into the detector 31 A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 34
MASTER ILT-15 NRC RO EXAM (75QS)
- 35.
On Unit 2, RHR loop 2B is in Torus Cooling with RHR pump 2B in service.
Subsequently, control power to the 4KV RHR pump 2B breaker is lost.
Based on the above conditions, which ONE of the choices below decribes the impact of loss of control power on the 4KV breaker to RHR pump 2B?
the RHR pump 2B 4KV breaker will TRIP the RHR pump 2B 4KV breaker can NOT be OPENED from the Main Control Room the RHR pump 2B motor ammeter will indicate ZERO regardless of actual breaker position the Main Control Room RHR pump 2B breaker indication will indicate OPEN regardless of actual breaker position A.
B.
C.
D.
Monday, October 30, 2023 2:00:32 PM 35
MASTER ILT-15 NRC RO EXAM (75QS)
- 36.
Unit 2 was operating at 85% RTP & 85% Core flow, with the OPRMs INOPERABLE.
Subsequently, a transient occurs causing a Recirc flow reduction resulting in the following:
o 58% RTP o 41% Core flow Based on the above conditions, which ONE of the choices below completes the following statements?
INDICATED RWL will INITIALLY __________ during the Recirc runback to Speed Limiter #1.
After the Recirc flow reduction, an IMMEDIATE Scram __________ REQUIRED.
Reference Provided rise; is rise; is NOT lower; is lower; is NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 36
MASTER ILT-15 NRC RO EXAM (75QS)
- 37.
Unit 1 is operating at 100% power with all systems in their normal alignment.
Subsequently, the following alarms were received:
o 600V BUS 1D BREAKER TRIPPED, 652-318 o 600V BUS 1D UNDERVOLTAGE, 652-323 10 minutes later:
o 600V Bus 1D is ENERGIZED o Non-Essential Load Lockout has been DEPRESSED Based on the above conditions, which ONE of the choices below completes the following statements?
Protection of the associated Emergency Diesel Generator __________ the reason the 240V DC Vital AC Battery Charger is currently LOCKED OUT.
After the Non-Essential Load Lockout is DEPRESSED, the 600V input breaker to the Vital AC Battery Charger __________.
is; must be MANUALLY CLOSED locally is; will AUTOMATICALLY CLOSE is NOT; must be MANUALLY CLOSED locally is NOT; will AUTOMATICALLY CLOSE A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 37
MASTER ILT-15 NRC RO EXAM (75QS)
- 38.
Unit 2 is operating at 100% RTP when the following occurs:
o A loss of 2R22-S016, 125/250VDC Switchgear 2A o 34AB-R22-001-2, Loss of DC Buses, is entered by the crew Subsequently, the Main Turbine trips.
Based on the above conditions, which ONE of the choices below completes the following statements?
The RFPTs can be TRIPPED __________.
To prevent the Condensate System from starting, the associated 4KV breakers MUST be OPENED prior to energizing __________.
from EITHER the RFP front standard OR on panel 2H11-P650 2R25-S129, 125 VDC Cabinet 2D from EITHER the RFP front standard OR on panel 2H11-P650 2R25-S003, 125 VDC Cabinet 2C ONLY from the RFP front standard; 2R25-S129, 125 VDC Cabinet 2D ONLY from the RFP front standard; 2R25-S003, 125 VDC Cabinet 2C A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 38
MASTER ILT-15 NRC RO EXAM (75QS)
- 39.
Unit 2 is operating at 30% RTP with the following Main Turbine HMI vibration indications:
Based on the above conditions, which ONE of the choices below completes the following statements?
The Main Turbine is REQUIRED to be MANUALLY tripped ___________ 10:03 because __________.
prior to; there is NO AUTOMATIC trip on high turbine vibration prior to; the AUTOMATIC trip on high turbine vibration has FAILED after; there is NO AUTOMATIC trip on high turbine vibration after; the AUTOMATIC trip on high turbine vibration has FAILED A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 39
MASTER ILT-15 NRC RO EXAM (75QS)
- 40.
On Unit 2 the Shift Supervisor (SS) has established Main Condenser Vacuum as a Critical Parameter with an limit of 23.0 inches Hg vacuum. The action once the limit is reached is to take Unit 2 OFFLINE.
Subsequently, o Main Condensor Vacuum is 22.9 inches Hg vacuum o The OATC announces their intent to SCRAM the unit NOTE:
o NMP-AP-005-GL02, Hatch Transient Response Guideline o NMP-OS-007-001, Conduct of Operations Standards and Expectations Based on the above conditions and IAW the listed procedures, which ONE of the choices below completes the following statements?
The Unit Operator is REQUIRED to __________.
When making the subsequent page announcement, the Unit Operator __________
REQUIRED to state the reason for the SCRAM.
momentarily pause to allow the SS an opportunity to intervene; is momentarily pause to allow the SS an opportunity to intervene; is NOT wait until directed by the SS to SCRAM the plant; is wait until directed by the SS to SCRAM the plant; is NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 40
MASTER ILT-15 NRC RO EXAM (75QS)
- 41.
Unit 2 was operating at 100% RTP with the Reactor Manual Control System Master Timer FAILED.
Subsequently, o REACTOR VESSEL PRESSURE HIGH, 603-114, alarms o The alarm is confirmed to be VALID Based on the above conditions and IAW 603-114, which ONE of the choices below completes the following statements?
The OATC will ___________.
SCRAM the reactor REDUCE reactor power using recirc flow ONLY MANUALLY operate SRVs to control RPV pressure REDUCE reactor power using recirc flow AND the ROD MOVEMENT control switch A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 41
MASTER ILT-15 NRC RO EXAM (75QS)
- 42.
Unit 2 is operating at 100% RTP when the FW master controller (C32-R600) malfunctions resulting in the following:
o REACTOR VESSEL WATER LEVEL HIGH/LOW, 603-141, alarms The shift crew observes the following indication:
Based on the above conditions, which ONE of the choices below completes the following statements?
To confirm the validity of the alarm, the shift crew will use __________ indications.
The alarm is due to RWL being __________.
2C32-R606A-C, Narrow Range; High 2C32-R606A-C, Narrow Range; Low 2B21-R623A-B, Wide Range (compensated);
High 2B21-R623A-B, Wide Range (compensated);
Low A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 42
MASTER ILT-15 NRC RO EXAM (75QS)
- 43.
The control room has been abandoned and 31RS-OPS-001-2, Shutdown From Outside Control Room, is being implemented.
Prior to exiting the Control Room RCIC was placed in service for RWL control.
Based on the above conditions and IAW 31RS-OPS-001-2, which ONE of the choices below completes the following statements?
To transfer control of RCIC from the Control Room to the Remote Shutdown Panel, the control switches at the 2C82-P001 panel must be aligned __________ taking Transfer Switches to Emergency.
2C82-P001, Remote Shutdown Panel, __________ contain a RCIC flow controller.
prior to; does prior to; does NOT after; does after; does NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 43
MASTER ILT-15 NRC RO EXAM (75QS)
- 44.
Unit 2 is operating at 100% RTP when a transient causes the following conditions:
o ONLY one (1) RBCCW pump is running o RBCCW suction temperature is RISING Based on the above conditions and IAW 34AB-P42-001-2, Loss of RBCCW, which ONE of the choices below completes the following statements?
The LOWEST listed RBCCW suction temperature that REQUIRES cooling to NON-ESSENTIAL equipment to be ISOLATED is __________.
The purpose of the action above is to ensure adequate flow is maintained to the __________.
105°F CRD pump coolers 105°F Recirc pump seal coolers 120°F CRD pump coolers 120°F Recirc pump seal coolers A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 44
MASTER ILT-15 NRC RO EXAM (75QS)
- 45.
Unit 2 is operating at 25% RTP when a rupture occurs on the Non-Essential Instrument Air header.
Based on the above conditions, which ONE of the choices below completes the following statements?
The NPO is REQUIRED to __________ in the OPEN position.
The Scram Inlet & Outlet Valves will ___________.
override 2P52-F565, Rx Bldg Inst N2 To Non-Int Air El. 185 Isol Valve; drift OPEN override 2P52-F565, Rx Bldg Inst N2 To Non-Int Air El. 185 Isol Valve; remain CLOSED place control switch for 2N21-F125, S/U Level Control Isol Valve; drift OPEN place control switch for 2N21-F125, S/U Level Control Isol Valve; remain CLOSED A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 45
MASTER ILT-15 NRC RO EXAM (75QS)
- 46.
Unit 1 is in Mode 4 preparing for startup after a forced mid-cycle shutdown with the following conditions:
o RHR Loop B is in Shutdown Cooling with 7900 gpm o Both Recirc Pumps OFF with discharge valves CLOSED and suction valves OPEN o 1C32-R606A-C, Narrow Range RWL are indicating 55 inches 34SV-B31-001-1, Recirculation System Valve Operability, is in progress.
1B31-F031B, Recirc Pump 1B discharge valve, is OPENED and now will NOT RE-CLOSE.
Maintenance is currently investigating the valve motor breaker.
Based on the above conditions and IAW 34AB-E11-001-1, Loss of Shutdown Cooling, which ONE of the choices below completes the following statements?
Actual core coolant temperature will __________.
The crew will __________ RWL.
start to rise; raise start to rise; maintain remain relatively the same; raise remain relatively the same; maintain A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 46
MASTER ILT-15 NRC RO EXAM (75QS)
- 47.
On Unit 2, a reactor startup is in progress.
o RPV Pressure is 700 psig Subsequently, the operating CRD pump TRIPS.
At 14:00, the following events occur:
o A SO reports the accumulator pressure for Control Rod 22-19 indicates 920 psig o Control Rod 22-19 is at position 48 At 14:05, the following events occur:
o A SO reports the accumulator pressure for Control Rod 18-15 indicates 900 psig o Control Rod 18-15 is at position 48 Based on the above conditions and IAW 34AB-C11-001-2, Loss of CRD System, which ONE of the choices below completes the following statement?
The EARLIEST listed time a reactor SCRAM is REQUIRED is __________.
14:01 14:06 14:21 14:26 A.
B.
C.
D.
Monday, October 30, 2023 2:00:33 PM 47
MASTER ILT-15 NRC RO EXAM (75QS)
- 48.
Unit 1 is in Mode 5 with fuel movement in progress.
o RPS Shorting Links INSTALLED o A fuel bundle is on the Main Grapple in the Normal Up position The Reactor Cavity and Fuel Pool water levels start to LOWER.
The fuel bundle on the Main Grapple is lowered back into the RPV core and seated.
o The count rate on SRM A RISES to 300 cps with a stable positive period indicated Based on the above conditions, which ONE of the choices below completes the following statements?
IAW 34AB-G41-002-1, Decreasing Rx Well/Fuel Pool Water Level, the grappled fuel bundle is REQUIRED to be placed __________ in-core location.
If SRM A continues to increase, SRM A __________ AUTOMATICALLY initiate a FULL Scram.
ONLY in its proper; will ONLY in its proper; will NOT into ANY; will into ANY; will NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 48
MASTER ILT-15 NRC RO EXAM (75QS)
- 49.
Unit 1 was operating at 55% RTP, due to a fuel leaker, when a steam line break inside containment occurs.
Plant conditions are below:
o Drywell pressure is 11.0 psig and slowly RISING o Torus pressure is 10.5 psig and slowly RISING o Neither Drywell or Torus sprays have been initiated Based on the above conditions and IAW 31EO-EOP-012-1, PC Primary Containment Control, which ONE of the choices below completes the following statements?
At this time, ________ Sprays are REQUIRED to be placed in service.
After Torus pressure meets the requirements to spray the Drywell, Drywell Sprays are REQUIRED to be placed in service to __________.
BOTH Drywell and Torus; draw noncondensibles from the Torus back to the Drywell BOTH Drywell and Torus; prevent the operation of the Torus-to-Drywell vacuum breakers ONLY Drywell; draw noncondensibles from the Torus back to the Drywell ONLY Drywell; prevent the operation of the Torus-to-Drywell vacuum breakers A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 49
MASTER ILT-15 NRC RO EXAM (75QS)
- 50.
Unit 2 has experienced a SCRAM.
The following conditions exist at the given time:
At 10:05, RPV pressure is 1056 psig At 10:08, RPV pressure is 1075 psig At 10:11, LLS is controlling RPV pressure with the following:
o 2B LLS valve continuously OPEN o 2G LLS valve continuously OPEN o 2F LLS valve CYCLING on LLS setpoint Based on the above conditions, which ONE of the choices below completes the following statements?
IAW 34AB-C71-001-2, Scram Procedure, the EARLIEST listed time that LLS is ALLOWED to be manually ARMED is __________.
At 10:11, based on SRV positions, Reactor Power is approximately __________.
10:05; 13% RTP 10:05; 20% RTP 10:08; 13% RTP 10:08; 20% RTP A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 50
MASTER ILT-15 NRC RO EXAM (75QS)
- 51.
Unit 1 is operating at 100% RTP with the following conditions:
o Torus Temperature 85°F and RISING o No testing is being performed Based on the above conditions and IAW LCO 3.6.2.1 Suppression Pool Average Temperature, which ONE of the choices below completes the following statement?
The LOWEST listed temperature that requires entry into an ACTION statement for LCO 3.6.2.1 is __________.
96°F 101°F 106°F 111°F A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 51
MASTER ILT-15 NRC RO EXAM (75QS)
- 52.
Unit 2 has SCRAMMED due to a LOCA with the following conditions:
o SPDS message "Hot Legs May Boil" on the Primary display just appeared o Drywell Temperature 340°F Based on the above conditions, which ONE of the choices below completes the following statements?
Reactor pressure is approximately __________ psig.
The "Hot Legs May Boil" message will appear on the __________ screen.
Reference Provided 120 - 135; Drywell Temperature Diagnostic 120 - 135; Primary SPDS Display 940 - 955; Drywell Temperature Diagnostic 940 - 955; Primary SPDS Display A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 52
MASTER ILT-15 NRC RO EXAM (75QS)
- 53.
Unit 1 was operating at 100% RTP when an event resulted in the following parameters:
o RPV pressure 650 - 750 psig o Torus Water Temperature 195°F o Torus Water Level 120 inches An Emergency Depress is ordered.
Based on the above conditions/Torus plot and IAW 31EO-EOP-012-1, PC Primary Containment Control, which ONE of the choices below completes the following statements?
The energy from the above Emergency Depress __________ result in the Torus temperature EXCEEDING the maximum temperature capability of the Torus.
The HIGHEST listed Torus water level at which SRVs are NOT allowed to be OPENED is __________.
Reference Provided will; 57 inches will; 62 inches will NOT; 57 inches will NOT; 62 inches A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 53
MASTER ILT-15 NRC RO EXAM (75QS)
- 54.
Unit 2 was operating at 100% RTP when a LOCA occurred.
o Steam Cooling is IN PROGRESS Based on the above condition and IAW 31EO-EOP-015-2, CP-1, Alternate Level Control &
Emergency RPV Depressurization, which ONE of the choices below completes the following statements concerning steam cooling?
The MAXIMUM cladding temperature will NOT exceed __________.
RWL __________ ALLOWED to boil off to -239 inches.
1800°F; is 1800°F; is NOT 2200°F; is 2200°F; is NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 54
MASTER ILT-15 NRC RO EXAM (75QS)
- 55.
Following a transient on Unit 2, current plant conditions are:
o RWL is -20 inches, rising 5 inches/minute o RPV pressure is 750 psig, slowly lowering Subsequently the following conditions occur:
o RCIC Room Area Cooler Temperature is 160°F o HPCI Room Area Cooler Temperature is 175°F o RCIC is injecting at 400 gpm o HPCI is injecting at 600 gpm Based on the above conditions, which ONE of the choices below completes the following statement?
IAW the EOPs, __________ REQUIRED to be MANUALLY isolated.
ONLY the HPCI System is ONLY the RCIC System is BOTH HPCI and RCIC Systems are NEITHER HPCI nor RCIC Systems are A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 55
MASTER ILT-15 NRC RO EXAM (75QS)
- 56.
Unit 2 was operating at 100% RTP when a radiological event occurred resulting in an automatic start of the SBGT system.
Reactor Bldg. to Outside Air dP is -0.5 inches water column (WC).
An emergency is declared based on a radiological release at the following times:
At 09:00, Alert (RA1)
At 10:00, Site Area (RS1)
Based on the above conditions and IAW the EOPs, which ONE of the choices below completes the following statements?
The EARLIEST listed time that an entry condition into the RR portion of 31EO-EOP-014-2, SC-Rad Release Control, EOP Flowchart, will exist is __________.
IAW 34SO-T46-001-2, one (1) SGBT train __________ REQUIRED to be secured.
09:01; is 09:01; is NOT 10:01; is 10:01; is NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 56
MASTER ILT-15 NRC RO EXAM (75QS)
- 57.
Unit 2 is operating at 100% RTP with the following alignment:
o 2T41-C001A, Rx Bldg Supply Fan Running o 2T41-C001B, Rx Bldg Supply Fan Standby o 2T41-C007A, Rx Bldg Vent Exhaust Fan Running o 2T41-C007B, Rx Bldg Vent Exhaust Fan Standby Subsequently, the shaft on the running, 2T41-C007A, Rx Bldg Vent Exhaust Fan, breaks.
Based on the above conditions and IAW 34SO-T41-005-2, Reactor Building Ventilation System, which ONE of the choices below completes the following statement?
2T41-C001A will __________.
2T41-C007B __________ to recover Reactor Building dP.
AUTOMATICALLY trip; will AUTOMATICALLY start AUTOMATICALLY trip; must be MANUALLY started CONTINUE to operate; will AUTOMATICALLY start CONTINUE to operate; must be MANUALLY started A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 57
MASTER ILT-15 NRC RO EXAM (75QS)
- 58.
Unit 1 was operating at 100% RTP when an ATWS occurred.
o Reactor power 16%
o Both Recirc pumps TRIPPED The OATC is directed to insert control rods IAW 31EO-EOP-103-1, Control Rod Insertion Methods, using the following section:
o 4.7, Driving Control Rods o The normal Rod Movement Switch is NOT functioning Based on the above conditions and IAW 31EO-EOP-103-1, which ONE of the choices below completes the following statement?
During the execution of this section, __________.
ALL potential Control Rod Insert Block signals are BYPASSED Rod Drift indication is FIRST received when rod motion BEGINS BOTH Stabilizing Valves are OPEN to provide increased drive water pressure ALL Reactor Manual Control System timer functions are bypassed EXCEPT for the Settle Bus timer A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 58
MASTER ILT-15 NRC RO EXAM (75QS)
- 59.
A fuel failure event has occurred on Unit 1.
An unisolable break exists on "A" main steam line (downstream of the MSIVs) and radioactive steam is leaking into the Turbine Building.
An emergency has been declared.
SBGT System has automatically started.
The crew has restarted the Turbine Building Ventilation System IAW 31EO-EOP-014-2, SC Secondary Containment Control - RR Radioactivity Release Control, using 34SO-U41-001-2, Turbine Building Ventilation System, Section 4.3.10.
Based on the above conditions, and IAW the EOPs which ONE of the choices below completes following the following statements?
IAW 34SO-U41-001-2, the reason the Turbine Building Ventilation Exhaust Fans were restarted is to maintain the radiological habitability of the __________ within limits.
The on-going release into the Turbine Building __________ being filtered by the Standby Gas Treatment System.
Operation Support Center (OSC);
is Operation Support Center (OSC);
is NOT Main Control Room (MCR);
is Main Control Room (MCR);
is NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 59
MASTER ILT-15 NRC RO EXAM (75QS)
- 60.
Unit 2 is operating at 100% RTP.
A malfunction occurs on the Non-Essential Instrument Air Header causing this header to lower to 45 psig.
This line breaks Based on the above conditions, which ONE of the choices below completes the following statements?
2P51-F017, Turbine Building Service Air Isolation Valve, will automatically isolate at __________.
2P52-F015, Non-Essential Instrument Air Header Isolation Valve, will __________.
80 psig; continuously cycle open and closed 80 psig; close and remain closed 70 psig; continuously cycle open and closed 70 psig; close and remain closed A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 60
MASTER ILT-15 NRC RO EXAM (75QS)
- 61.
The following annunciators on Unit 1 are in the alarm condition:
o RBCCW RADIATION HIGH, 601-413 o RBCCW SURGE TK LEVEL HIGH, 650-358 Based on the above conditions, which ONE of the choices below completes the following statements?
The flowpath associated with alarm, 601-413, __________ AUTOMATICALLY isolate.
Isolating the __________ System has the greatest potential of clearing alarm 601-413.
will; RWCU will; Decay Heat Removal will NOT; RWCU will NOT; Decay Heat Removal A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 61
MASTER ILT-15 NRC RO EXAM (75QS)
- 62.
A FIRE is burning in the Cable Spreading Room.
Outside of the Cable Spreading Room, the operator opens the box, the ready light is illuminated.
The operator depresses the START pushbutton.
o The RED ready light remains ILLUMINATED Based on the above conditions and IAW 34SO-Z43-002-0, Turbine and Control Building Carbon Dioxide System, which ONE of the choices below completes the following statements?
To initiate the release of CO2, the operator __________ REQUIRED to MANUALLY open the Cable Spreading Room Master Pilot valve.
Once the Cable Spreading Room CO2 system actuates, CO2 will be discharged from the __________ Cardox Tank.
is NOT; thirteen (13) Ton is NOT; five (5) Ton is; thirteen (13) Ton is; five (5) Ton A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 62
MASTER ILT-15 NRC RO EXAM (75QS)
- 63.
BOTH units are operating at 100% RTP when a grid disturbance occurs.
The following indications occur on 1S40-R600, 230 KV voltmeter, on panel 1H11-P653:
Time 1S40-R600 10:05 236 KV 10:10 232 KV 10:15 224 KV Based on the above conditions and IAW 34AB-S11-001-0, Operation With Degraded System Voltage, which ONE of the choices below completes the following statements?
The EARLIEST listed time that 230 KV Bus voltage is BELOW the normal minimum voltage is __________.
The primary reason for monitoring the Main Generator IAW 34SO-N40-001-1/2, Main Generator Operation, during a Degraded Grid condition is to __________.
10:10; ensure the stability of the grid 10:10; ensure compliance with the capability curve 10:15; ensure the stability of the grid 10:15; ensure compliance with the capability curve A.
B.
C.
D.
Monday, October 30, 2023 2:00:34 PM 63
MASTER ILT-15 NRC RO EXAM (75QS)
- 64.
Unit 2 experiences a Loss of ALL high pressure feed.
o LPCI and CS AUTOMATICALLY initiate o RWL is being controlled by LPCI and CS RWL is recovered to its normal band and the NPO is ready to stop injection from RHR.
Based on the above conditions and IAW NMP-AP-005-GL02, Hatch Transient Response Guideline, which ONE of the choices below completes the following statements?
When reporting RWL to the SS, the operator __________ REQUIRED to include the trend.
The NPO can stop RHR injection after confirming adequate core cooling on MINIMUM of __________ of the RWL instruments.
is NOT; one (1) is NOT; two (2) is; one (1) is; two (2)
A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 64
MASTER ILT-15 NRC RO EXAM (75QS)
- 65.
Unit 2 experiences a condition resulting in the CTP 3.75 minute Average Core Thermal Power exceeding its limit.
Based on the above conditions and IAW 34GO-OPS-022-0, Maintaining Rated Thermal Power, which ONE of the choices below completes the following statement?
The operator is REQUIRED to use __________ to maintain the Shift Current Average CTP less than or equal to __________.
Control rods; 2790 MWth Control rods; 2804 MWth Recirc flow; 2790 MWth Recirc flow; 2804 MWth A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 65
MASTER ILT-15 NRC RO EXAM (75QS)
- 66.
IAW Unit 1 Tech Specs, which ONE of the choices below completes the following statement?
A Unit 1 Tech Spec LCO condition that will REQUIRE entry into a Required Action Statement (RAS) (NOT A TRACKING RAS) is __________.
Drywell pressure is 1.7 psig in Mode 1 HPCI is INOP with reactor steam dome pressure at 200 psig in Mode 2 Turbine Building (TB) Maximum Area Temperature at 190°F in Mode 3 Primary Containment Oxygen Concentration at 2.2 volume percent in Mode 1 A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 66
MASTER ILT-15 NRC RO EXAM (75QS)
- 67.
Unit 2 is operating at 100% RTP when a transient results in the following conditions:
o HIGHEST RPV steam dome pressure reached 1330 psig o LOWEST RWL reached
-145 inches Based on the above conditions, which ONE of the choices below completes the following statement?
A Safety Limit violation occurred on __________.
RWL ONLY RPV pressure ONLY BOTH RWL AND RPV pressure NEITHER RWL OR RPV pressure A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 67
MASTER ILT-15 NRC RO EXAM (75QS)
- 68.
IAW 31GO-OPS-005-0, Primary Containment Entry, which ONE of the choices below completes the following statements?
The MAXIMUM reactor power at which radiological conditions will allow a NORMAL Primary Containment Entry to occur is __________.
7% RTP 10% RTP 13% RTP 20% RTP A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 68
MASTER ILT-15 NRC RO EXAM (75QS)
- 69.
An UNUSUAL EVENT Emergency has been declared at Plant Hatch.
Based on the above condition and IAW NMP-EP-142, Emergency Notification, which ONE of the choices below completes the following statements?
Emergency Response Organization (ERO) facility activation __________ REQUIRED for an UNUSUAL EVENT Emergency.
The plant EMERGENCY TONE __________ REQUIRED to be sounded prior to the INITIAL plant page announcement for the UNUSUAL EVENT emergency.
is; is is; is NOT is NOT; is is NOT; is NOT A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 69
MASTER ILT-15 NRC RO EXAM (75QS)
- 70.
A reactor startup is in progress on Unit 2 with a stable period of 100 seconds.
Based on the condition above, which ONE of the choices below completes the following statement?
The effective multiplication factor (keff) is __________.
The Unit 2 reactor is currently __________.
positive; CRITICAL positive; SUPERCRITICAL negative; CRITICAL negative; SUPERCRITICAL A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 70
MASTER ILT-15 NRC RO EXAM (75QS)
- 71.
Unit 1 is undergoing a plant startup and has just gone CRITICAL.
Based on the above conditions, which ONE of the choices below completes the following statement?
Unit 1 will become prompt critical if positive reactivity is added equal to the effective __________.
delayed neutron fraction delayed neutron decay constant prompt neutron fraction prompt neutron decay constant A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 71
MASTER ILT-15 NRC RO EXAM (75QS)
- 72.
Refer to the drawing below of Keff versus core age that represents a Plant Hatch fuel cycle.
Based on the graph above, which ONE of the choices below explains the change in Keff from point 1 to point 3?
Initially, __________ lowers Keff, then burnable poisons deplete __________ than the fuel depletes to raise Keff.
reactor heatup; slower reactor heatup; faster buildup of fission product poisons; slower buildup of fission product poisons; faster A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 72
MASTER ILT-15 NRC RO EXAM (75QS)
- 73.
Unit 2 is operating at 85% RTP when extraction steam to the 4th Stage Feedwater Heater 2A isolates.
Based on the above conditions, which ONE of the choices below completes the following statements?
INITIALLY, Reactor power will __________.
After main generator load is returned to its initial value, the steam cycle thermal efficiency will __________.
remain the same; lower remain the same; higher be greater; lower be greater; higher A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 73
MASTER ILT-15 NRC RO EXAM (75QS)
- 74.
Unit 2 has experienced an LOSP.
Based on the above condition, which ONE of the choices below describes natural circulation in the reactor vessel?
Coolant density in the downcomer and a reduction of density in the core region support the cycle Two-phase flow in the separators allows steam to be removed and water to return to the downcomer region Relief and safety valves provide a heat sink for decay heat; in spite of leakage, control rod drive flow is adequate to maintain inventory Density of the coolant in the core region increases, allowing coolant in the downcomer to enter the core A.
B.
C.
D.
Monday, October 30, 2023 2:00:35 PM 74
MASTER ILT-15 NRC RO EXAM (75QS)
- 75.
Which ONE of the choices below explains why, at high core exposures, the maximum average planar linear heat generation rate (MAPLHGR) limit LOWERS with RISING core exposure?
The local peaking factor (LPF) gets larger at higher core exposures Cracking of fuel pellets place the pellet into contact with the cladding Deposits on the cladding become less numerous because of flaking off Fission product gases lower the overall heat transfer coefficient of the fuel rod fill gas A.
B.
C.
D.
You have completed the test!
Monday, October 30, 2023 2:00:35 PM 75
ANSWER KEY REPORT for MASTER ILT-15 NRC RO EXAM (75QS) Test Form: 0 Answers 0
ID 1
201006K2.01 1 A
2 201003K5.01 1 C
3 204000K4.04 1 C
4 205000A4.02 1 A
5 205000K6.04 1 A
6 206000A1.03 1 C
7 209001K4.05 1 C
8 211000K2.01 1 B
9 211000K3.04 1 A
10 212000K1.13 1 C
11 214000A2.01 1 B
12 215003K5.07 1 D
13 215004K2.02 1 D
14 215004K4.01 1 B
15 215005K6.09 1 B
16 216000A4.03 1 C
17 217000K3.07 1 D
18 218000K2.01 1 D
19 223001A3.04 1 C
20 223002K4.08 1 A
21 226001A1.07 1 A
22 239001K1.12 1 B
23 239002A3.01 1 C
24 259002A2.02 1 C
25 261000K5.01 1 A
26 262001A4.03 1 C
27 262002A2.01 1 B
28 263000K1.03 1 C
29 264000A1.09 1 D
30 264000K1.04 1 C
31 290001K6.04 1 A
32 290003K3.06 1 B
33 291002K1.07 1 B
34 291002K1.22 1 D
35 291008K1.09 1 B
36 295001AK2.02 1 A
37 295003AK3.03 5 A
38 295004AK1.06 1 D
39 295005G2.4.18 1 C
40 295006G2.1.1 1 B
41 295007AA1.07 1 B
42 295008AA2.02 1 A
43 295016G2.1.31 1 A
44 295018AK2.04 1 B
45 295019AA1.01 1 B
46 295021AA2.07 1 A
Monday, October 30, 2023 2:45:00 PM 1
ANSWER KEY REPORT for MASTER ILT-15 NRC RO EXAM (75QS) Test Form: 0 Answers 0
ID 47 295022G2.2.44 1 A
48 295023AK1.03 1 B
49 295024EA1.11 1 A
50 295025EA2.02 1 D
51 295026G2.2.40 1 B
52 295028EA2.02 1 B
53 295030EK1.03 1 D
54 295031EK3.04 1 A
55 295032EK2.01 1 A
56 295033EK1.03 1 A
57 295035EK3.02 1 D
58 295037EK2.11 1 A
59 295038EK1.06 1 D
60 300000A3.04 1 C
61 400000K5.02 1 C
62 600000AA1.08 1 C
63 700000AK3.02 1 B
64 G2.1.2 1 D
65 G2.1.37 1 D
66 G2.2.23 1 B
67 G2.2.38 1 B
68 G2.3.12 1 D
69 G2.4.43 1 D
70 292002K1.12 1 B
71 292003K1.07 1 A
72 292007K1.03 1 D
73 293005K1.05 1 C
74 293008K1.34 1 A
75 293009K1.14 1 D
SECTION 1 ( 75 items) 75.00 Monday, October 30, 2023 2:45:00 PM 2
NRC RO REFERENCES RO WRITTEN EXAM
- 1. 34GO-OPS-005-2, Power Changes, Attachment 1
- 2. 34AB-C51-001-2, Entry Into the RPI Or Reactor Operations With Inoperable OPRM System,
- 3. 34SO-B31-001-2, Reactor Recirculation System, Attachment 1
- 4. Unit 1 Graph 2, HCTL
- 5. Form 4.3-1 Generic Fundamental Equations and Conversion Sheet
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Q= mcT N = S/(1 K)
Q= mh CR1 K= CR1 K Q= UAT 1/M = CR/CR Q m
A = r T m
F = PA K= 1/(1 )
m= Av
= (K1)/K W= mP SUR =
P = I2R
=
P = IE P= 3IE
=
+
1 +
P= 3IEpf
= 1.0 x 10 sec P= 3IEsin
= 0.1 sec (for > 0)
Thermal Efficiency = Net Work Out/Energy In DRW
/
g(zz) g
+ (v v
)
2g
+ (PP) + (uu) + (q w) = 0 P = Pe/
P = P10()
A = Ae g = 32.2 ft/sec2 gc = 32.2 lbm-ft/lbf-sec2
&219(56,216 1 MW = 3.41 x 10 Btu/hr
= (5/9)( 32) 1 ft
= 7.48 gal 1 hp = 2.54 x 10 Btu/hr
= (9/5)() + 32 1 gal= 8.35 lbm 1 Btu = 778 ft-lbf 1 kg = 2.21 lbm 1 Curie = 3.7 x 10 dps