ML17276B832
| ML17276B832 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 10/03/2017 |
| From: | NRC/RGN-II |
| To: | |
| References | |
| Download: ML17276B832 (78) | |
See also: IR 05000424/2017301
Text
RO Answer Key
1
D
26
A
51
D
2
B
27
C
52
D
3
A
28
A
53
C
4
A
29
C
54
D
5
D
30
D
55
B
6
D
31
B
56
D
7
B
32
B
57
B
8
A
33
B
58
A
9
B
34
B
59
A
10
C
35
C
60
B
11
A
36
A
61
A
12
D
37
B
62
C
13
A
38
C
63
A
14
B
39
D
64
D
15
A
40
D
65
C
16
B
41
B
66
A
17
B
42
A
67
D
18
C
43
C
68
C
19
B
44
C
69
C
20
A
45
D
70
A
21
B
46
A
71
A
22
C
47
B
72
D
23
D
48
C
73
B
24
D
49
D
74
A
25
C
50
B
75
D
Name: ________________________
ILT-21 RO NRC
Student Test
Start Time: _______
Stop Time: _______
ILT-21 RO NRC
1.
Initial conditions:
- Unit 2 is at 52% reactor power.
- Tavg and Tref are matched.
- AFD is +0.3%.
Current conditions:
- Reactor power is 56% and rising.
- Tavg is 3 °F higher than Tref and rising.
- AFD is +1.0% and rising.
Which one of the following completes the following statement?
An __(1)__ is occurring,
and
per Tech Spec 3.2.3, "Axial Flux Difference (AFD)," the AFD is considered outside
limits when a minimum of __(2)__ OPERABLE Power Range NI channels indicate
outside AFD limits.
__(1)__
__(2)__
inadvertent dilution
1
inadvertent dilution
2
uncontrolled continuous rod withdrawal
1
uncontrolled continuous rod withdrawal
2
A.
B.
C.
D.
Page 1 of 75
ILT-21 RO NRC
2.
Initial condition:
- Unit 1 is at 100% reactor power.
Current condition:
- 1CD1 is de-energized due to a fault.
Which one of the following completes the following statements?
The Rod Control Logic Cabinet's normal power supply __(1)__ available.
The Rod Control Logic Cabinet's alternate power supply is __(2)__.
__(1)__
__(2)__
is
Vital 120 VAC Panel
(1CY1A)
is
Regulated 120 VAC Panel
(1NYS)
is NOT
Vital 120 VAC Panel
(1CY1A)
is NOT
Regulated 120 VAC Panel
(1NYS)
A.
B.
C.
D.
Page 2 of 75
ILT-21 RO NRC
3.
Initial conditions:
- Unit 1 is in Mode 5.
- RCS temperature is 150 °F.
- RCS pressure is 350 psig.
Current conditions:
- Crew initiated an RCS heatup at 60 °F/hour.
- RCS temperature is 152 °F.
- RCS pressure rises to 1000 psig due to an unplanned pressure excursion.
Which one of the following completes the following statements?
Consider each statement separately.
Based on the given conditions, Tech Spec LCO 3.4.3, "RCS Pressure and
Temperature (P/T) Limits," __(1)__ met.
For the given conditions, if Tech Spec LCO 3.4.3 is NOT met, the crew is required to
initiate action to restore the parameter(s) to within limits __(2)__.
REFERENCES PROVIDED
__(1)__
__(2)__
is
immediately
is
in no later than 30 minutes
is NOT
immediately
is NOT
in no later than 30 minutes
A.
B.
C.
D.
Page 3 of 75
ILT-21 RO NRC
4.
Initial condition:
- Unit 2 is at 100% reactor power.
Current conditions:
- The following alarms are received:
- ALB07-A05 REGEN HX LTDN HI TEMP
- ALB07-D03 LTDN HX OUT HI TEMP
- ALB08-E06 RCP SEAL WATER INJ FILTER HI DELTA P
Which one of the following completes the following statement?
Based on the current conditions, __(1)__ has failed closed,
and
the identified failure is the result of a __(2)__.
__(1)__
__(2)__
2HV-182, Seal Flow Control
controller malfunction
2HV-182, Seal Flow Control
loss of instrument air
2FV-121, Charging Flow Control
controller malfunction
2FV-121, Charging Flow Control
loss of instrument air
A.
B.
C.
D.
Page 4 of 75
ILT-21 RO NRC
5.
Initial conditions:
- Unit 2 is at 4% reactor power following an outage.
- 12004-C, "Power Operation (Mode 1)," is in progress.
Current condition:
- RCP #2 trips.
Which one of the following completes the following statement?
Following the RCP trip, as RCP speed lowers, the DNBR will __(1)__,
and
based on the given conditions, per 18005-C, "Partial Loss of Flow," the crew is required
to __(2)__.
__(1)__
__(2)__
rise
immediately trip the reactor
rise
initiate a reactor shutdown per 12004-C
lower
immediately trip the reactor
lower
initiate a reactor shutdown per 12004-C
A.
B.
C.
D.
Page 5 of 75
ILT-21 RO NRC
6.
Given the following:
- Unit 1 is performing 13701-1, "Boric Acid System," to startup the system.
- The crew is at the step to "Verify heat tracing for the Boric Acid System is
available as required."
Which one of the following completes the following statement?
The Heat Trace System is designed to __(1)__,
and
Heat Trace System panel alarms __(2)__ be acknowledged by the operator on the
QMCB 'A' panel.
__(1)__
__(2)__
provide freeze protection
will
provide freeze protection
will NOT
maintain boric acid in solution
will
maintain boric acid in solution
will NOT
A.
B.
C.
D.
Page 6 of 75
ILT-21 RO NRC
7.
Initial conditions:
- Unit 1 is in Mode 6.
- RCS level is at 192 feet and stable.
- Both RHR pumps are running.
- Letdown is aligned to RHR Train 'A'.
- RHR Train 'A' is in the following configuration:
1HIC-606A, RHR Heat Exchanger Outlet, is at 0% demand.
1FIC-618A, RHR Heat Exchanger Bypass, is in manual with 75% demand.
- RHR Train 'B' is in the following configuration:
1HIC-607A, RHR Heat Exchanger Outlet, is at 50% demand.
1FIC-619A, RHR Heat Exchanger Bypass, is in manual with 25% demand.
Current conditions:
- RHR pump 'A' trips.
- No operator action has been taken.
Which one of the following completes the following statement?
Based on the given conditions, RCS level will __(1)__,
and
RCS temperature will __(2)__.
__(1)__
__(2)__
rise
rise
rise
remain the same
remain the same
rise
remain the same
remain the same
A.
B.
C.
D.
Page 7 of 75
ILT-21 RO NRC
8.
Initial conditions:
- Unit 1 is in Mode 5 with solid plant conditions.
- Pressurizer bubble is being established.
Current conditions:
- A transient results in an RHR pressure excursion.
- ALB12-E02 PRZR REL TANK HI PRESS is received.
- ALB12-E03 PRZR REL TANK HI TEMP is received.
Which one of the following completes the following statement?
The RHR pump __(1)__ relief valve lifting caused the PRT high pressure condition,
and
per 13004-1, "Pressurizer Relief Tank Operation," PRT cooldown using spray and drain
to lower PRT temperature is expected to take approximately __(2)__ hour(s).
__(1)__
__(2)__
suction
1
suction
8
discharge
1
discharge
8
A.
B.
C.
D.
Page 8 of 75
ILT-21 RO NRC
9.
Initial conditions:
- Unit 1 reactor trip and SI occurred due to a large break LOCA.
- RWST SI TEST LIGHT 'A' white light is lit on the QMCB 'A' panel.
- RWST SI TEST LIGHT 'B' white light is NOT lit on the QMCB 'A' panel.
Current condition:
- RWST level is 28% on all channels and slowly lowering.
Which one of the following completes the following statement?
1HV-8811A, Containment Sump to RHR Pump 'A' Suction, will indicate __(1)__ on the
QMCB,
and
1HV-8811B, Containment Sump to RHR Pump 'B' Suction, will indicate __(2)__ on the
QMCB.
__(1)__
__(2)__
open
open
open
closed
closed
open
closed
closed
A.
B.
C.
D.
Page 9 of 75
ILT-21 RO NRC
10.
Given the following:
- Unit 1 is in Mode 4.
- RHR Train 'A' is aligned for shutdown cooling.
Which one of the following completes the following statement?
Per 13715A-1, "Component Cooling Water System Train 'A'," for RCS temperature
control, CCW flow __(1)__ allowed to be throttled to the RHR Train 'A' heat exchanger,
and
when RHR system temperature first lowers to less than __(2)__ °F, CCW flow is NO
longer required to be supplied to the RHR pump seal coolers.
__(1)__
__(2)__
is
150
is
195
is NOT
150
is NOT
195
A.
B.
C.
D.
Page 10 of 75
ILT-21 RO NRC
11.
Initial condition:
- Unit 2 is at 100% reactor power.
Current conditions:
- An inadvertent SI occurs.
- ALB12-E02 PRZR REL TANK HI PRESS is received.
Which one of the following completes the following statement?
The PRT high pressure condition was caused by __(1)__ relief valve lifting,
and
with no operator action, 2PI-469, PRT Pressure, on the QMCB will reach a maximum
of __(2)__ psig before the rupture disk fails.
__(1)__
__(2)__
100
115
100
115
A.
B.
C.
D.
Page 11 of 75
ILT-21 RO NRC
12.
Initial condition:
- Unit 1 is at 100% reactor power.
Current conditions:
- PRT pressure is 5 psig.
- 1PSV-8010A, Pressurizer Safety Valve 'A', fails 20% open.
- The OATC is monitoring 1TI-466, Pressurizer Safety Valve 'A'.
Which one of the following completes the following statement?
1TI-466, Pressurizer Safety Valve 'A', will initially indicate approximately __(1)__ °F,
and
as the safety valve continues to lift, 1TI-466 temperature indication __(2)__ increase
continuously until pressurizer temperature is reached.
__(1)__
__(2)__
212
will
212
will NOT
228
will
228
will NOT
A.
B.
C.
D.
Page 12 of 75
ILT-21 RO NRC
13.
Initial conditions:
- Unit 1 is at 100% reactor power.
- CCW pumps #1 and #3 are running.
- CCW pump #5 is tagged out.
Current conditions:
- ALB02-A05 CCW TRAIN A SURGE TK LO-LO LVL is received.
- CCW pump #3 trips.
- CCW pump #1 is running.
- The following alarms are received:
- ALB02-A06 CCW TRAIN A LO HDR PRESS
- ALB02-B06 CCW TRAIN A LO FLOW
- ALB02-D06 CCW TRAIN A RHR HX LO FLOW
- ALB02-E05 CCW TRAIN A RHR PMP SEAL LO FLOW
- 1FI-1876, CCW Train 'A' Supply Header Flow, indicates 4500 gpm.
Which one of the following completes the following statement?
A single level transmitter failing low on CCW Train 'A' surge tank __(1)__ CCW
pump #3 to trip,
and
the indicated flow on 1FI-1876 __(2)__ consistent with the given conditions.
__(1)__
__(2)__
caused
is
caused
is NOT
did NOT cause
is
did NOT cause
is NOT
A.
B.
C.
D.
Page 13 of 75
ILT-21 RO NRC
14.
Initial conditions:
- Unit 2 reactor tripped due to a small break LOCA.
- 19221-2, "Response to Inadequate Core Cooling," was entered.
Current condition:
- The crew is depressurizing all intact SGs to 120 psig.
Which one of the following completes the following statement?
The depressurization of all intact SGs is stopped when SG pressures reach 120 psig to
prevent ____________.
excessive cooldown of the SG U-tubes
injection of accumulator nitrogen into the RCS
a pressurized thermal shock condition of the reactor vessel
voiding in the reactor vessel head and loss of pressurizer level
A.
B.
C.
D.
Page 14 of 75
ILT-21 RO NRC
15.
Which one of the following completes the following statement?
Unit 1 Pressurizer Code Safety Valve position indications are available on __(1)__,
and
this display indication is powered from __(2)__.
__(1)__
__(2)__
PSMS 'A'
1AY1A
PSMS 'A'
1NYJ
QMCB, 'C' panel
1AY1A
QMCB, 'C' panel
1NYJ
A.
B.
C.
D.
Page 15 of 75
ILT-21 RO NRC
16.
Initial condition:
- Unit 1 experienced a LOCA.
Current conditions:
- The crew is in 19012-1, "Post-LOCA Cooldown and Depressurization."
- RCP #4 is running.
- Containment pressure is 4.5 psig and stable.
- RCS subcooling is 52 °F.
- CCP 'A' and 'B' are in service.
- SIP 'A' and 'B' are in service.
- The crew is at the following step:
Which one of the following completes the following statements?
Per 19012-1, the operators should stop the first CCP and then the first SIP in __(1)__.
Based on the given conditions, the crew __(2)__ required to stop one CCP.
(1) alternate ECCS Trains
(2) is
(1) alternate ECCS Trains
(2) is NOT
(1) the same ECCS Train
(2) is
(1) the same ECCS Train
(2) is NOT
A.
B.
C.
D.
Page 16 of 75
ILT-21 RO NRC
17.
Initial conditions:
- Unit 1 is at 8% reactor power.
- Pressurizer level control is selected to CH 459 / 460.
Current conditions:
- 1LT-459, Pressurizer Level, fails downscale low.
- No operator action has been taken.
Which one of the following completes the following statement?
Seal injection flow to the RCPs will __(1)__,
and
an automatic reactor trip __(2)__ occur on pressurizer level.
__(1)__
__(2)__
rise
will
rise
will NOT
lower
will
lower
will NOT
A.
B.
C.
D.
Page 17 of 75
ILT-21 RO NRC
18.
Initial condition:
- Unit 2 is at 70% reactor power.
Current condition:
- An inadvertent dilution occurs.
Which one of the following completes the following statement?
Based on the given conditions, the OT delta T reactor trip setpoint will __(1)__,
and
the OP delta T reactor trip setpoint will __(2)__.
__(1)__
__(2)__
rise
lower
rise
not change
lower
lower
lower
not change
A.
B.
C.
D.
Page 18 of 75
ILT-21 RO NRC
19.
Initial condition:
- Unit 1 is at 100% reactor power.
Current conditions:
- The bistable(s) for 1PT-934, Containment Pressure Channel IV, are
de-energized.
- No Tech Spec actions have been taken.
Which one of the following completes the following statement?
The minimum number of additional channels required to initiate an actuation signal
on High-1 is __(1)__,
and
the minimum number of additional channels required to initiate an actuation signal
on High-3 is __(2)__.
__(1)__
__(2)__
1
1
1
2
2
1
2
2
A.
B.
C.
D.
Page 19 of 75
ILT-21 RO NRC
20.
Given the following:
- Unit 1 is preparing for a reactor startup per 12003-C, "Reactor Startup (Mode 3 to
Mode 2)."
Which one of the following completes the following statements?
When the OATC momentarily places 1HS-40038, Rod Control Startup Switch, to
START UP, all control rod demand step counters __(1)__ reset to zero.
Control rod demand step counter indications __(2)__ available on the IPC.
__(1)__
__(2)__
will
are
will
are NOT
will NOT
are
will NOT
are NOT
A.
B.
C.
D.
Page 20 of 75
ILT-21 RO NRC
21.
Initial conditions:
- Unit 2 reactor tripped.
- 19001-2, "Reactor Trip Response," is entered.
- Natural circulation verification is in progress.
Current condition:
- Two CETCs fail low.
Which one of the following completes the following statement?
Tech Spec LCO 3.3.3, "Post Accident Monitoring (PAM) Instrumentation," requires a
minimum of __(1)__ OPERABLE CETC channels per quadrant,
and
based on the current conditions, the failed CETCs __(2)__ be included in the
calculated subcooling margin displayed on the IPC.
__(1)__
__(2)__
2
will
2
will NOT
4
will
4
will NOT
A.
B.
C.
D.
Page 21 of 75
ILT-21 RO NRC
22.
Initial conditions:
- Unit 1 is at 100% reactor power.
- 18007-C, "Chemical and Volume Control System Malfunction," is in progress due
to a controller malfunction.
Current conditions:
- The controller has been repaired.
- Normal charging is being restored to service per 13006-1, "Chemical and Volume
Control System."
- Pressurizer level has been stable within 1% of program for 3 minutes.
- OATC is ready to return pressurizer level control to automatic.
Which one of the following completes the following statement?
Pressurizer level is maintained stable for at least 3 minutes prior to placing pressurizer
level control in automatic to ensure the large error signal in __(1)__ has time to decay,
and
per NMP-OS-007-001, "Conduct of Operations Standards and Expectations," Shift
Manager permission __(2)__ required prior to returning the level control system to
automatic.
__(1)__
__(2)__
1FIC-121, Charging Flow Control
is
1FIC-121, Charging Flow Control
is NOT
1LIC-459, Pressurizer Level Control
is
1LIC-459, Pressurizer Level Control
is NOT
A.
B.
C.
D.
Page 22 of 75
ILT-21 RO NRC
23.
Initial conditions:
- Unit 1 is in Mode 4.
- A loss of all NSCW occurs.
- RCS and containment temperatures are rising.
Current conditions:
- The crew determines that NSCW Train 'A' can be re-started in single pump
operation.
- 13150A-1, "Train 'A' Nuclear Service Cooling Water System," is in progress.
Which one of the following is (are) the NSCW Train 'A' load(s) that must be isolated
prior to the re-start of one NSCW pump to ensure adequate cooling is provided to
required NSCW loads?
Component Cooling Water Heat Exchanger
Diesel Generator Jacket Water Heat Exchanger
Control Building Engineered Safety Features Chiller
Containment Auxiliary Cooler and Reactor Cavity Cooler
A.
B.
C.
D.
Page 23 of 75
ILT-21 RO NRC
24.
Initial conditions:
- Unit 2 is in Mode 5.
- RHR pump 'A' is in service for shutdown cooling.
Current conditions:
- RCS level is 192 feet and slowly lowering due to a leak.
- RCS temperature is 190 °F.
- 18019-C, "Loss of Residual Heat Removal," is in progress.
Which one of the following completes the following statements?
Based on the current conditions and per 18019-C, the operating crew __(1)__ required
to stop RHR pump 'A'.
Per 18019-C, if no pump is available, the preferred gravity drain path to restore
inventory is through the __(2)__ pumps to the RCS Cold Legs.
__(1)__
__(2)__
is
is
is NOT
is NOT
A.
B.
C.
D.
Page 24 of 75
ILT-21 RO NRC
25.
Given the following:
- Unit 1 experienced a large break LOCA.
- 19010-1, "Loss of Reactor or Secondary Coolant," is in progress.
- Containment Spray has been aligned to the recirculation mode.
Which one of the following completes the following statement?
Control of containment fluid pH is accomplished by __(1)__,
and
per 19010-1, Containment Spray is required to operate in the recirculation mode for a
minimum of __(2)__ hours.
__(1)__
__(2)__
batch chemical addition
1.5
batch chemical addition
2
chemical storage baskets
1.5
chemical storage baskets
2
A.
B.
C.
D.
Page 25 of 75
ILT-21 RO NRC
26.
Given the following:
- Unit 2 is at 100% reactor power.
- 2PIC-455A, Pressurizer Pressure Master Controller, output demand fails low.
- 18000-C, "Pressurizer Spray, Safety, or Relief Valve Malfunction," is entered.
Which one of the following completes the following statement?
In response to the controller failure, the pressurizer backup heaters __(1)__ energize,
and
per 18000-C, the OATC __(2)__ allowed to operate 2PIC-455B and 2PIC-455C,
Pressurizer Spray Controllers, in manual to control pressurizer pressure.
__(1)__
__(2)__
will
is
will
is NOT
will NOT
is
will NOT
is NOT
A.
B.
C.
D.
Page 26 of 75
ILT-21 RO NRC
27.
Given the following:
- Unit 1 experiences a large break LOCA.
- Containment pressure is 26 psig.
- Containment Spray is operating.
Which one of the following completes the following statement?
One purpose of the Containment Spray system is to remove __(1)__ from the
containment atmosphere,
and
per 19013-1, "Transfer to Cold Leg Recirculation," the operating crew __(2)__ required
to reset the Containment Spray actuation signal prior to aligning the CS pumps for
recirculation.
__(1)__
__(2)__
noble gases
is
noble gases
is NOT
gaseous iodine
is
gaseous iodine
is NOT
A.
B.
C.
D.
Page 27 of 75
ILT-21 RO NRC
28.
Initial conditions:
- Unit 1 is at 100% reactor power.
- Pressurizer level control is selected to CH 461 / 460.
Current conditions:
- 1LT-461, Pressurizer Level, fails as-is.
- Reactor power is being lowered to 30%.
Which one of the following completes the following statement?
As reactor power lowers, with no additional operator action, ALB11-C01 PRZR
CONTROL HI LEVEL DEV AND HEATERS ON __(1)__ alarm,
and
CVCS letdown __(2)__ isolate.
__(1)__
__(2)__
will
will
will
will NOT
will NOT
will
will NOT
will NOT
A.
B.
C.
D.
Page 28 of 75
ILT-21 RO NRC
29.
Given the following:
- Unit 1 is at 100% reactor power.
- Containment pressure is +0.8 psig and stable.
- Containment pressure relief is being performed per 13125-1, "Containment
Purge System."
Which one of the following completes the following statement?
Based on the given conditions and per 13125-1, when the crew begins the pressure
relief, the Mini-Purge Exhaust Fan __(1)__ required to be started,
and
containment pressure __(2)__ be monitored on the QHVC panel.
__(1)__
__(2)__
is
can
is
can NOT
is NOT
can
is NOT
can NOT
A.
B.
C.
D.
Page 29 of 75
ILT-21 RO NRC
30.
Initial condition:
- Unit 1 is at 45% reactor power.
Current conditions:
- ATWT is in progress.
- The Main Turbine will NOT trip from the Control Room.
- The Reactor Trip Breakers can NOT be opened locally.
Which one of the following completes the following statement?
Per 19211-1, "Response to Nuclear Power Generation / ATWT," the Control Rod Drive
MG Set __(1)__ breakers will be opened,
and
ALB09-E02 TURBINE TRIP DUE TO REACTOR TRIP __(2)__ be received when the
MG Set breakers are locally opened.
__(1)__
__(2)__
input
will
input
will NOT
output
will
output
will NOT
A.
B.
C.
D.
Page 30 of 75
ILT-21 RO NRC
31.
Procedure titles as follows:
- 19231-1, "Response to Loss of Secondary Heat Sink"
- 19235-1, "Response to Steam Generator Low Level"
Given the following:
- Unit 1 reactor tripped.
- 19200-1, "Critical Safety Function Status Tree," is initiated by the OATC.
- Containment pressure is 0.4 psig.
- SG pressures are 1000 psig in each SG.
- Total AFW flow has been throttled to 530 gpm.
- SG NR levels are as follows:
- SG #1 is 8%
- SG #2 is 9%
- SG #3 is 7%
- SG #4 is 10%
Which one of the following completes the following statement?
To ensure the CSFSTs are indicating correctly for the given plant conditions, the OATC
is required to verify the IPC indicates Mode __(1)__,
and
the Heat Sink status tree indicates conditions are met for a transition to __(2)__.
__(1)__
__(2)__
0
19231-1
0
19235-1
3
19231-1
3
19235-1
A.
B.
C.
D.
Page 31 of 75
ILT-21 RO NRC
32.
Initial conditions:
- Unit 1 tripped due to a SGTR.
- 19030-1, "Steam Generator Tube Rupture," is in progress.
- All RCPs are stopped.
- RCS subcooling is 29 °F.
- The crew has commenced the RCS cooldown.
Current condition:
- IPC indicates a RED path on Integrity and is directing a transition to 19241-1,
"Response to Imminent Pressurized Thermal Shock Condition."
Which one of the following completes the following statement?
Per 19030-1, Attachment 2, "Verification of Natural Circulation," the minimum required
subcooling to support natural circulation flow __(1)__ currently available,
and
based on the given conditions, the crew __(2)__ required to immediately transition to
19241-1.
__(1)__
__(2)__
is
is
is
is NOT
is NOT
is
is NOT
is NOT
A.
B.
C.
D.
Page 32 of 75
ILT-21 RO NRC
33.
Given the following:
- Unit 2 is at 100% reactor power.
- 18009-C, "Steam Generator Tube Leak," is in progress.
- Total charging flow is 93 gpm.
- Letdown flow is 75 gpm.
- Total RCP seal leak-off flow is 12 gpm.
- 2RE-810, SJAE Rad Monitor, indicates a leak rate of change of 25 gpd/hour after
30 minutes of trend data.
Which one of the following completes the following statement?
Per 18009-C, the crew __(1)__ required to initiate a plant shutdown to Mode 3 using
18013-C, "Rapid Power Reduction,"
and
Tech Spec LCO 3.4.13, "RCS Operational Leakage," __(2)__ met.
__(1)__
__(2)__
is
is
is
is NOT
is NOT
is
is NOT
is NOT
A.
B.
C.
D.
Page 33 of 75
ILT-21 RO NRC
34.
Initial conditions:
- Unit 1 is at 60% reactor power and stable.
- MFP 'B' startup is in progress and has been idling at 1200 rpm for 15 minutes.
Current conditions:
- ALB15-D03 MFPT A TRIPPED is received.
- Feed flow indications indicate 0 MPPH on all SGs.
- MFP 'B' continues to idle in manual.
- All SG NR levels are 60% and lowering.
Which one of the following completes the following statement?
Per 18016-C, "Condensate and Feedwater Malfunction," the first action the crew is
required to perform is to __(1)__,
and
the MDAFW pumps will first receive a start signal on __(2)__.
__(1)__
__(2)__
trip the reactor
the trip of MFP 'A'
trip the reactor
SG low level
raise MFP 'B' speed
the trip of MFP 'A'
raise MFP 'B' speed
SG low level
A.
B.
C.
D.
Page 34 of 75
ILT-21 RO NRC
35.
Initial conditions:
- Unit 2 reactor tripped due to a loss of off-site power.
- 2AA02 and 2BA03 are de-energized.
- 19100-2, "Loss of All AC Power," is in progress.
- Instrument air header pressure is rapidly lowering.
Current condition:
- The crew is checking the status of CVCS valves.
Which one of the following completes the following statement?
With no operator action following the loss of instrument air, 2LV-459 and 2LV-460,
Letdown Isolations, will be __(1)__,
and
2HV-8105 and 2HV-8106, Charging to RCS Isolations, will be __(2)__.
__(1)__
__(2)__
open
open
open
closed
closed
open
closed
closed
A.
B.
C.
D.
Page 35 of 75
ILT-21 RO NRC
36.
Initial conditions:
- Unit 1 is at 100% reactor power.
- SJAE #1 is in standby.
- SJAE #2 is in service.
Current condition:
- SJAE #1 loop seal drain isolation valve fails open.
Which one of the following completes the following statement?
With no operator action, reactor power __(1)__ lower,
and
entry into 18040-C, "Partial Loss of Condenser Vacuum," __(2)__ required.
__(1)__
__(2)__
will
is
will
is NOT
will NOT
is
will NOT
is NOT
A.
B.
C.
D.
Page 36 of 75
ILT-21 RO NRC
37.
Initial conditions:
- Unit 1 is at 35% reactor power.
- MFP 'A' is running.
Current conditions:
- Both RATs de-energize due to a switchyard fault.
- Unit 1 reactor is tripped.
- 19001-1, "Reactor Trip Response," is in progress.
- Crew is at Step 9 to "Check SG levels."
- SG NR levels are 7% in each SG.
- MDAFW flow is throttled to 135 gpm to each SG.
Which one of the following completes the following statement?
Based on the current conditions, an adequate heat sink __(1)__ exist,
and
when the UO trips MFP 'A', the MDAFW pump discharge valves will __(2)__.
__(1)__
__(2)__
does
re-open fully
does
remain throttled
does NOT
re-open fully
does NOT
remain throttled
A.
B.
C.
D.
Page 37 of 75
ILT-21 RO NRC
38.
Initial conditions:
- Unit 2 is at 100% reactor power.
- A loss of off-site power occurs.
Current conditions:
- DG2A starts and re-energizes its associated bus.
- DG2B will NOT start.
- 2BD1 bus voltage is 103 VDC.
Which one of the following completes the following statements?
Based on the given conditions, per 18031-2, "Loss of Class 1E Electrical Systems," the
minimum required action(s) to take for 2BD1 is (are) to __(1)__.
The reason for removing 2BD1 from service is to prevent __(2)__.
(1) open its associated battery breaker
(2) cell reversal
(1) open its associated battery breaker
(2) an excessive buildup of hydrogen
(1) shutdown its associated inverter and then open its battery breaker
(2) cell reversal
(1) shutdown its associated inverter and then open its battery breaker
(2) an excessive buildup of hydrogen
A.
B.
C.
D.
Page 38 of 75
ILT-21 RO NRC
39.
Initial conditions:
- Unit 1 is at 100% reactor power.
- DG1B is running for a monthly surveillance.
Current conditions:
- 1BD1 de-energizes due to a fault.
- 18034-1, "Loss of Class 1E 125 VDC Power," is in progress.
Which one of the following completes the following statement?
Depressing the DG1B Emergency Stop pushbuttons on the QEAB __(1)__ stop DG1B,
and
the DG1B output breaker is required to be opened using the local breaker __(2)__.
__(1)__
__(2)__
will
handswitch
will
TRIP pushbutton
will NOT
handswitch
will NOT
TRIP pushbutton
A.
B.
C.
D.
Page 39 of 75
ILT-21 RO NRC
40.
Initial condition:
- Unit 1 is at 100% reactor power.
Current conditions:
- A 200 MWe load rejection occurs.
- Main turbine load has stabilized.
Which one of the following completes the following statement?
Based on the current conditions, the final MFRV positions will be more __(1)__ than
prior to the transient,
and
the final MFP speeds will be __(2)__ than prior to the transient.
__(1)__
__(2)__
open
higher
open
lower
closed
higher
closed
lower
A.
B.
C.
D.
Page 40 of 75
ILT-21 RO NRC
41.
Initial condition:
- Unit 1 Waste Gas Decay Tank release is in progress.
Current conditions:
- A diaphragm valve fails in the Waste Gas System.
- ARE-0014, Waste Gas Processing Effluent Monitor, is in intermediate alarm.
- No operator action has been taken.
Which one of the following completes the following statement?
ARV-0014, Plant Vent Radwaste Gas, isolation valve is __(1)__,
and
the position of ARV-0014 will be verified by the operators __(2)__.
__(1)__
__(2)__
open
on the IPC in the Control Room
open
locally on the Gaseous Waste Panel
closed
on the IPC in the Control Room
closed
locally on the Gaseous Waste Panel
A.
B.
C.
D.
Page 41 of 75
ILT-21 RO NRC
42.
Initial conditions:
- Unit 1 is in Mode 3.
- MDAFW pump 'A' is running.
- MDAFW pump 'B' and the TDAFW pump are in standby.
Current condition:
- Maintenance requests to simultaneously open both 1-1302-U4-055 and
1-1302-U4-056, MDAFW Pump Cross-Connect Valves, for a PM.
Per 13610-1, "Auxiliary Feedwater System," which one of the following completes the
following statements?
For the given conditions, opening both 1-1302-U4-055 and 1-1302-U4-056 at the same
time __(1)__ violate Tech Spec LCO 3.7.5, "Auxiliary Feedwater (AFW) System."
To prevent pump runout, MDAFW pump 'A' flow rate is required to be limited to a
maximum of __(2)__ gpm.
__(1)__
__(2)__
will
600
will
1260
will NOT
600
will NOT
1260
A.
B.
C.
D.
Page 42 of 75
ILT-21 RO NRC
43.
Initial conditions:
- Unit 1 experienced a loss of heat sink.
- TDAFW pump governor developed a hydraulic oil leak.
- TDAFW pump tripped on overspeed.
- 1HS-15111, TDAFW Trip and Throttle Valve, green and amber lights are lit.
Current condition:
- OAO is dispatched to reset the TDAFW pump mechanical overspeed trip.
Which one of the following completes the following statement?
The amber light on 1HS-15111 will extinguish when __(1)__,
and
with the failed governor valve, the TDAFW pump __(2)__ be operated locally.
(1) 1HS-5106A, TDAFW Steam Supply, is taken to the close position
(2) can
(1) 1HS-5106A, TDAFW Steam Supply, is taken to the close position
(2) can NOT
(1) the mechanical trip linkage is manually reset
(2) can
(1) the mechanical trip linkage is manually reset
(2) can NOT
A.
B.
C.
D.
Page 43 of 75
ILT-21 RO NRC
44.
Initial conditions:
- Unit 1 is at 100% reactor power.
- DG1A is paralleled with RAT '1A' for surveillance testing.
Current condition:
- Lockout relay 186C actuates due to reverse power on DG1A.
Which one of the following completes the following statement?
The DG1A engine __(1)__ automatically shutdown,
and
1AA02-19, DG1A Output Breaker, __(2)__ automatically trip open.
__(1)__
__(2)__
will
will
will
will NOT
will NOT
will
will NOT
will NOT
A.
B.
C.
D.
Page 44 of 75
ILT-21 RO NRC
45.
Initial conditions:
- Unit 2 is in Mode 3.
- CCP 'B' is running.
Current condition:
- 2BD1 is de-energized due to a fault.
Which one of the following completes the following statement?
If an overcurrent relay actuates in the CCP 'B' pump breaker, the breaker __(1)__
automatically trip open,
and
QMCB handswitch indication of the CCP 'B' breaker position __(2)__ be available.
__(1)__
__(2)__
will
will
will
will NOT
will NOT
will
will NOT
will NOT
A.
B.
C.
D.
Page 45 of 75
ILT-21 RO NRC
46.
Initial conditions:
- Unit 1 is at 100% reactor power.
- DG1A is tagged out.
- A loss of off-site power occurs due to a switchyard fault.
- The following alarms are received:
ALB35-F02 DG1B LOW PRESS STARTING AIR
ALB35-F05 DG1B FAILED TO START
Current conditions:
- 19100-1, "Loss of All AC Power," directs a DG1B start.
- DG1B starting air receiver pressures each indicate 142 psig.
Which one of the following completes the following statements?
Based on the given conditions, the operator will perform a(n) __(1)__ start of DG1B.
After starting and during the subsequent DG1B shutdown, depressing 1HS-4583,
RESET FROM LOCA/LOSP pushbutton, __(2)__ restore the non-emergency trips for
DG1B.
__(1)__
__(2)__
normal
will
normal
will NOT
emergency
will
emergency
will NOT
A.
B.
C.
D.
Page 46 of 75
ILT-21 RO NRC
47.
Initial conditions:
- Unit 2 is at 100% reactor power.
- Train 'B' sequencer simulated software test (UV) is in progress per 13540B-2,
"Safety Feature Sequencer System - Train 'B'."
Current condition:
- The normal incoming breaker to 2BA03 trips open.
Which one of the following completes the following statement?
With the test in progress, the Train 'B' sequencer __(1)__ detect the UV condition on
2BA03,
and
manual action to take the Train 'B' sequencer out of the Test Mode __(2)__ required
for DG2B to automatically start.
__(1)__
__(2)__
will
is
will
is NOT
will NOT
is
will NOT
is NOT
A.
B.
C.
D.
Page 47 of 75
ILT-21 RO NRC
48.
Given the following:
- Unit 1 was at 100% reactor power.
- A fire occurred in the QHVC panel requiring Control Room evacuation per
18038-1, "Operation from Remote Shut Down Panels."
Which one of the following completes the following statement?
After tripping the reactor per 18038-1, entry into 19000-1, "Reactor Trip or Safety
Injection," __(1)__ required,
and
18038-1, Attachment 9, "Control Switch Required Positions," __(2)__ be performed for
__(1)__
__(2)__
is
will
is
will NOT
is NOT
will
is NOT
will NOT
A.
B.
C.
D.
Page 48 of 75
ILT-21 RO NRC
49.
Initial condition:
- Waste Monitor Tank (WMT) #9 release is in progress.
Current conditions:
- 1RX-0018, Liquid Effluent Monitor, DPM TROUBLE light is lit.
- 1RE-0018, Liquid Effluent Monitor, fails downscale low.
Which one of the following completes the following statement?
The WMT #9 liquid release __(1)__ automatically isolate,
and
per the ODCM, to perform any additional WMT releases, 1RE-0018 __(2)__ required
to be returned to service.
__(1)__
__(2)__
will
is
will
is NOT
will NOT
is
will NOT
is NOT
A.
B.
C.
D.
Page 49 of 75
ILT-21 RO NRC
50.
Initial conditions:
- The Control Room has been evacuated due to toxic gas.
- 18038-1, "Operation from Remote Shut Down Panels," is in progress.
- All SDP 'A' handswitches have been taken to LOCAL.
Current condition:
- An automatic SI occurs.
Which one of the following completes the following statement?
DG1A __(1)__ automatically start,
and
SI pump 'A' __(2)__ automatically start.
__(1)__
__(2)__
will
will
will
will NOT
will NOT
will
will NOT
will NOT
A.
B.
C.
D.
Page 50 of 75
ILT-21 RO NRC
51.
Valve and radiation monitor names as follows:
- 1RE-0021, SG Blowdown Liquid
- 1FV-1150, Blowdown Inlet Isolation Valve
- 1HV-7600, Blowdown Recycle Isolation Valve
Initial conditions:
- Unit 1 is at 100% reactor power.
- SGBD is in service.
Current conditions:
- One SGBD radiation detector fails high.
- SGBD automatically isolates.
Which one of the following completes the following statement?
Based on the given conditions, __(1)__ failed high,
and
the detector failure caused __(2)__ to automatically close.
__(1)__
__(2)__
A.
B.
C.
D.
Page 51 of 75
ILT-21 RO NRC
52.
Initial conditions:
- Unit 1 is at 100% reactor power.
- TPCW pump #1 is in service.
- TPCCW pump #1 is in service.
Current condition:
- TPCW pump #1 breaker trips.
Which one of the following completes the following statements?
Over the next 30 minutes, TPCCW temperature __(1)__ expected to rise.
Any temperature changes in TPCCW will directly affect the __(2)__ Coolers.
__(1)__
__(2)__
is
Generator Hydrogen
is
Electrohydraulic Control (EHC)
is NOT
Generator Hydrogen
is NOT
Electrohydraulic Control (EHC)
A.
B.
C.
D.
Page 52 of 75
ILT-21 RO NRC
53.
Initial conditions:
- Unit 1 reactor trip and SI occurred due to a LOCA.
- 19000-1, "Reactor Trip or Safety Injection," is in progress.
Current condition:
- The OATC verified correct SI alignment on the MLBs.
Which one of the following completes the following statement?
On the MLBs, the NSCW supply valves to the Auxiliary Coolers indicate __(1)__,
and
the NSCW supply valves to the Containment Coolers indicate __(2)__.
__(1)__
__(2)__
open
open
open
closed
closed
open
closed
closed
A.
B.
C.
D.
Page 53 of 75
ILT-21 RO NRC
54.
Initial conditions:
- Unit 1 reactor trip and SI occurred due to a LOCA.
- Fuel damage has occurred.
At time 1000:
- 1RE-002, Containment - Low Range, is 500 mr/hour.
- 1RE-003, Containment - Low Range, is 525 mr/hour.
At time 1030:
- 1RE-002, Containment - Low Range, is 760 mr/hour.
- 1RE-003, Containment - Low Range, is 750 mr/hour.
Which one of the following completes the following statement?
The crew first meets entry criteria into 19253-1, "Response to High Containment
Radiation Level," at time __(1)__,
and
per the MAJOR ACTIONS of 19253-1, the operators are required to verify proper
__(2)__ alignment.
__(1)__
__(2)__
1000
CIA
1000
1030
CIA
1030
A.
B.
C.
D.
Page 54 of 75
ILT-21 RO NRC
55.
Initial condition:
- Unit 1 is at 100% reactor power.
Current conditions:
- 18017-C, "Abnormal Grid Disturbances / Loss of Grid," Section 'A' for "Degraded
Grid Conditions," is in progress.
- Unit 1 lagging MVARs (positive) are rising due to grid instability.
Which one of the following completes the following statement?
Overexcitation will lead to damage to the main generator __(1)__,
and
in order to reduce the lagging MVARs (positive), the UO is required to adjust main
generator __(2)__.
__(1)__
__(2)__
rotor
frequency
rotor
voltage
frequency
voltage
A.
B.
C.
D.
Page 55 of 75
ILT-21 RO NRC
56.
Initial conditions:
- Unit 1 is at 100% reactor power.
- Air Compressors #1 and #3 are in service.
- Air Compressors #2 and #4 are in AUTO-PTL.
Current conditions:
- ALB01-C06 SERVICE AIR HDR LO PRESS is received.
- 1PI-9377, Service Air Header Pressure, on the QMCB lowered to 92 psig and is
now stable at 105 psig.
Which one of the following completes the following statement?
1PV-9375, Service Air Dryer Inlet Isolation Valve, __(1)__ closed,
and
Air Compressors #2 and #4 automatically started __(2)__ ALB01-C06 was received.
__(1)__
__(2)__
is
after
is
before
is NOT
after
is NOT
before
A.
B.
C.
D.
Page 56 of 75
ILT-21 RO NRC
57.
Initial conditions:
- Unit 1 is at 100% reactor power.
- Air Compressor #4 is in service and aligned to Unit 1.
Current conditions:
- RAT '1A' and RAT '1B' de-energize due to a switchyard fault.
- DG1A and DG1B start and re-energize their associated buses.
- The reactor is NOT tripped.
Which one of the following completes the following statements?
Based on the current conditions, Air Compressor #4 is __(1)__.
When the OATC trips the reactor, Air Compressor #4 will be __(2)__.
__(1)__
__(2)__
energized
energized
energized
de-energized
de-energized
energized
de-energized
de-energized
A.
B.
C.
D.
Page 57 of 75
ILT-21 RO NRC
58.
Initial conditions:
- Unit 2 is in a refueling outage.
- Core reload is in progress.
Current condition:
- The inner emergency airlock door is open and is NOT capable of being closed.
Which one of the following completes the following statement?
Per Tech Spec LCO 3.9.4, "Containment Penetrations," the equipment hatch must be
capable of being closed and held in place with a minimum of __(1)__ bolts,
and
per Tech Spec LCO 3.9.4, core reload __(2)__ allowed to continue.
__(1)__
__(2)__
4
is
4
is NOT
8
is
8
is NOT
A.
B.
C.
D.
Page 58 of 75
ILT-21 RO NRC
59.
Given the following:
- Unit 1 reactor trip and SI occurred due to a large break LOCA.
- Containment pressure is 22 psig.
- Containment hydrogen concentration is 5.1%.
Which one of the following completes the following statement?
The lower flammability limit for hydrogen in containment __(1)__ been exceeded,
and
the preferred method for reducing containment hydrogen concentration is __(2)__ the
containment atmosphere.
__(1)__
__(2)__
has
diluting
has
purging
has NOT
diluting
has NOT
purging
A.
B.
C.
D.
Page 59 of 75
ILT-21 RO NRC
60.
Initial condition:
- Unit 2 is in Mode 6 for a refueling outage.
Current conditions:
- A fuel assembly has been lowered into the wrong core location.
- Source Range counts are unexpectedly rising on NR-45.
Which one of the following completes the following statements?
Consider each statement separately.
Per 93300-C, "Conduct of Refueling Operations," the OATC (Reactor Operator)
__(1)__ have the authority to direct disengagement of fuel assemblies.
Based on the current conditions, if the Fuel Handling Supervisor (FHS) requests
permission to unlatch the assembly just lowered, the FHS __(2)__ be directed to
disengage the fuel assembly at the current location.
__(1)__
__(2)__
does
will
does
will NOT
does NOT
will
does NOT
will NOT
A.
B.
C.
D.
Page 60 of 75
ILT-21 RO NRC
61.
Which one of the following completes the following statement?
Per NMP-AD-006, "Infrequently Performed Tests and Evolutions," the IPTE briefing
__(1)__ required to be conducted by Senior Line Management,
and
an activity that requires an IPTE briefing is __(2)__.
__(1)__
__(2)__
is
reactor vessel head lift
is
CVCS demin resin replacement
is NOT
reactor vessel head lift
is NOT
CVCS demin resin replacement
A.
B.
C.
D.
Page 61 of 75
ILT-21 RO NRC
62.
Which one of the following completes the following statements?
Per Tech Spec SR 3.0.2, for surveillances with periodic frequencies on a "once per..."
basis, a performance interval extension __(1)__ be applied to the first performance.
Per Tech Spec SR 3.0.3, when a surveillance is discovered to have NOT been
performed within its specified frequency, a risk evaluation __(2)__ required to be
performed in order to delay performance of the surveillance greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
__(1)__
__(2)__
can
is
can
is NOT
can NOT
is
can NOT
is NOT
A.
B.
C.
D.
Page 62 of 75
ILT-21 RO NRC
63.
Given the following:
- Systems Operator (SO) will make multiple entries into AB-A-103 during the shift
for support of CVCS valve repairs.
- The SO will use RWP 17-0108 (red RWP).
- The SO's RWP has a dose limit of 50 mrem.
Which one of the following completes the following statement?
The SO __(1)__ required to receive an RP briefing prior to each AB-A-103 entry,
and
per the RCA trip ticket and NMP-HP-008, "Radiation Protection Conduct of
Operations," exiting the RCA before the SO's electronic dosimeter indicates 50 mrem
__(2)__ required.
__(1)__
__(2)__
is
is
is
is NOT
is NOT
is
is NOT
is NOT
A.
B.
C.
D.
Page 63 of 75
ILT-21 RO NRC
64.
Valve names as follows:
- 1HV-2624A, CTB Post-LOCA Purge Exhaust IRC Isolation
- 1-1508-U4-012, Post-LOCA Purge CTB Isolation [Equip Bldg roof (Dog House)]
Given the following:
- Unit 1 reactor trip and SI occurred due to a large break LOCA.
- Post-LOCA hydrogen purge is being placed in service using 13130-1,
"Post-Accident Hydrogen Control."
- Systems Operator (SO) is getting briefed.
Which one of the following completes the following statements?
Per 13130-1, to minimize radiation exposure to the SO, the first valve required to be
opened is __(1)__.
In order to open 1HV-2624A, resetting __(2)__ is required.
__(1)__
__(2)__
CIA
1-1508-U4-012
CIA
1-1508-U4-012
A.
B.
C.
D.
Page 64 of 75
ILT-21 RO NRC
65.
Initial conditions:
- Unit 1 reactor trip and SI occurred due to a SG #2 tube rupture.
- 1PV-3010, SG #2 ARV, is lifting.
Current condition:
- 1RE-12116 and 1RE-12117, Control Room Air Intake, are in high alarm.
Which one of the following completes the following statement?
Per 13301-C, "CBCR Normal HVAC and Emergency Filtration System," the crew is
required to verify the Control Room HVAC is in the __(1)__ Mode of operation,
and
both Train 'A' and Train 'B' ESF Chillers __(2)__ automatically start.
__(1)__
__(2)__
Isolation
will
Isolation
will NOT
Recirculation (Filtration)
will
Recirculation (Filtration)
will NOT
A.
B.
C.
D.
Page 65 of 75
ILT-21 RO NRC
66.
Initial condition:
- Unit 2 reactor trip and SI occurred due to a SGTR.
Current conditions:
- Crew is initiating the Foldout Page of 19000-2, "Reactor Trip or Safety Injection."
- Containment pressure is 1.4 psig and stable.
- All SG NR levels are 10% and slowly rising.
Per 10020-C, "EOP and AOP Rules of Usage," which one of the following completes
the following statements?
Based on the given conditions, the UO __(1)__ allowed to take early operator action to
isolate AFW to the ruptured SG.
Shift Supervisor permission __(2)__ required prior to performing early operator actions.
__(1)__
__(2)__
is
is
is
is NOT
is NOT
is
is NOT
is NOT
A.
B.
C.
D.
Page 66 of 75
ILT-21 RO NRC
67.
Given the following:
- Unit 2 reactor trip and SI occurs.
- The Shift Manager declares an ALERT emergency.
Which one of the following completes the following statement?
Per NMP-EP-111, "Emergency Notifications," the primary communication system used
to notify the NRC of the declaration is the __(1)__,
and
per NMP-EP-111, hourly follow-up notifications to the NRC __(2)__ required.
__(1)__
__(2)__
are
are NOT
are
are NOT
A.
B.
C.
D.
Page 67 of 75
ILT-21 RO NRC
68.
Given the following:
- Unit 1 control room is being evacuated due to a fire.
- The operating crew is fully staffed.
Which one of the following completes the following statement?
Per 18038-1, "Operation From Remote Shut Down Panels," the Shift Supervisor
__(1)__ dispatched to SDP 'A',
and
the preferred method for establishing communications between all stations is __(2)__.
__(1)__
__(2)__
is
sound powered telephones
remote shutdown channel (red box)
is
bridge phone extension 1624,
codes 123# or 234#
is NOT
sound powered telephones
remote shutdown channel (red box)
is NOT
bridge phone extension 1624,
codes 123# or 234#
A.
B.
C.
D.
Page 68 of 75
ILT-21 RO NRC
69.
Initial conditions:
- Unit 1 reactor trip and SI occurred.
- 19112-1, "LOCA Outside Containment," is in progress.
Current conditions:
- RCS pressure is 807 psig and slowly rising.
- RCS subcooling is 14 °F and slowly rising.
- Containment pressure is 2 psig.
- Pressurizer level is below the indicating range.
Which one of the following completes the following statements?
Per 19112-1, the first system to be isolated from the RCS to attempt leak isolation is
__(1)__.
Based on the current conditions, the leak __(2)__ isolated.
__(1)__
__(2)__
is
is NOT
is
is NOT
A.
B.
C.
D.
Page 69 of 75
ILT-21 RO NRC
70.
Initial conditions:
- Unit 1 reactor tripped due to a loss of main feedwater.
- 19231-1, "Response to Loss of Secondary Heat Sink," is in progress.
Current conditions:
- RCS bleed and feed is in progress.
- The crew is re-establishing feedwater using a MFP.
- Containment pressure is 1.5 psig.
- Low Steamline Pressure SI/SLI and Low Pressurizer Pressure SI signals are
blocked.
Which one of the following completes the following statement?
After resetting SI, the crew __(1)__ required to cycle the Reactor Trip Breakers, by
momentarily closing them, in order to reset the FWI,
and
based on the current conditions, if a high steam pressure rate setpoint is exceeded
while depressurizing a SG, an automatic SLI __(2)__ occur.
__(1)__
__(2)__
is
will
is
will NOT
is NOT
will
is NOT
will NOT
A.
B.
C.
D.
Page 70 of 75
ILT-21 RO NRC
71.
Initial conditions:
- Unit 2 reactor trip and SI occurred due to a steam line break.
- 19241-2, "Response to Imminent Pressurized Thermal Shock Condition," is in
progress.
Current conditions:
- An RCS soak is initiated.
- Crew is continuing in 19010-2, "Loss of Reactor or Secondary Coolant," while the
soak is in progress.
- The crew is at the step to "Stop Containment Spray Pumps."
Which one of the following completes the following statement?
Per 19241-2, stopping the Containment Spray pumps __(1)__ allowed,
and
after the RCS soak is complete, the RCS cold leg cooldown rate is limited to a
maximum of __(2)__ °F in any 60 minute period.
__(1)__
__(2)__
is
50
is
100
is NOT
50
is NOT
100
A.
B.
C.
D.
Page 71 of 75
ILT-21 RO NRC
72.
Given the following:
- Unit 1 reactor tripped due to a loss of off-site power.
- 19003-1, "Natural Circulation Cooldown with Void in Vessel (With RVLIS)," is in
progress.
Which one of the following completes the following statement?
Per 19003-1, the first Train of RHR can be placed in service when RCS hot leg
temperatures first lower to less than __(1)__ °F,
and
if a valid YELLOW path on inventory occurs during the performance of the cooldown,
19003-1 __(2)__ allow the crew to transition to 19263-1, "Response to Voids in
Reactor Vessel."
__(1)__
__(2)__
250
does
250
does NOT
350
does
350
does NOT
A.
B.
C.
D.
Page 72 of 75
ILT-21 RO NRC
73.
Initial conditions:
- Unit 1 reactor trip and SI occurred due to a large break LOCA.
- Containment pressure is 23 psig.
- Both Containment Spray (CS) pumps are running.
- RWST level is 26% and lowering.
- Four Containment Coolers are running in low speed.
- 19111-1, "Loss of Emergency Coolant Recirculation," is in progress.
Current condition:
- The crew is at the step to "Determine Containment Spray requirements."
Which one of the following completes the following statement?
Per 19111-1, the first major action the crew will attempt to perform is to __(1)__,
and
based on the current conditions, __(2)__ CS pump(s) is (are) required to be running.
REFERENCES PROVIDED
(1) increase / conserve RWST inventory
(2) 0
(1) increase / conserve RWST inventory
(2) 1
(1) depressurize RCS to minimize RCS subcooling
(2) 0
(1) depressurize RCS to minimize RCS subcooling
(2) 1
A.
B.
C.
D.
Page 73 of 75
ILT-21 RO NRC
74.
Initial conditions:
- Unit 1 reactor trip and SI occurred.
- 19121-1, "Uncontrolled Depressurization of All Steam Generators," is in
progress.
- RCS cold leg cooldown rate is 175 °F/hour.
- All SG NR levels are off-scale low.
- RCS pressure is 450 psig and stable.
- SI is reset.
- RHR pumps are stopped.
Current conditions:
- RAT '1A' de-energizes due to a fault.
- DG1A starts and re-energizes its associated bus.
- RCS pressure is 200 psig and lowering.
Which one of the following completes the following statements?
Based on the given conditions, the crew __(1)__ required to maintain a minimum of
Based on the given conditions, the crew __(2)__ required to manually start RHR pump
'A'.
__(1)__
__(2)__
is
is
is
is NOT
is NOT
is
is NOT
is NOT
A.
B.
C.
D.
Page 74 of 75
ILT-21 RO NRC
75.
Initial condition:
- Unit 1 reactor trip and SI occurred due to a LOCA.
Current conditions:
- 1LR-7777, Containment North and South Normal Sump Levels, indicate
off-scale high.
- 1LI-764 and 1LI-765, Containment North and South Emergency Sump Levels,
indicate 46 inches each.
Which one of the following completes the following statement?
Based on the given conditions, entry into 19252-1, "Response to Containment
Flooding," __(1)__ required,
and
the primary risk associated with flooding in containment is damage to __(2)__.
__(1)__
__(2)__
is
the containment inner liner
is
critical systems and components
is NOT
the containment inner liner
is NOT
critical systems and components
A.
B.
C.
D.
Page 75 of 75
ILT-21 RO Exam Provided References Index
1.
Unit 1 Pressure Temperature Limits Report (PTLR), Figure 2-1, Vogtle Unit 1
Reactor Coolant System Heat-up Limitations (rev. 5.0)
2.
19111-1, Loss of Emergency Coolant Recirculation, Page 9 (rev. 7.0)