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Systems 11-13-19 > AF, CD, FW (Aux Feed, Condensate, Feedwater) > Flashcards

AF, CD, FW (Aux Feed, Condensate, Feedwater) Flashcards

1
Q

Which ONE of the following identifies the start sequence for the Steam-Driven Essential Auxiliary Feedwater Pump? The main steam supply:

A. Valves and bypass valves open together. The main steam supply bypass valves throttle closed to regulate the speed ramp of the turbine.
B. Valves start opening immediately and turbine speed ramps up as the valves open.
C. Valves and bypass valves open together. The main steam supply bypass valves throttle closed to regulate the speed ramp of the turbine.
D. Bypass valves open first, then thirty (30) seconds later the main steam supply valves open and speed ramps up when the main valves are full open.

A

D. Bypass valves open first, then thirty (30) seconds later the main steam supply valves open and speed ramps up when the main valves are full open.

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2
Q

Unit at 100% power. A loss of PKA-M41 occurs.
Which one of the following describes the status of the Auxiliary Feedwater System?

A. Downcomer isolation valves fail and must be locally operated before AFA-P01 can be used.
B. The Train ‘A’ main steam supply valves fail open to ensure AFA-P01 is available for local operation.
C. AFA-P01 governor control power is lost and AFN-P01 has lost normal control power.
D. The train ‘A’ main steam supply valves fail as is but if AFA-P01 is already running it would be immediately available.

A

C. AFA-P01 governor control power is lost and AFN-P01 has lost normal control power.

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3
Q

Unit 1 has tripped from rated power due to a loss of feed flow.
AFA-P01 and AFB-P01 have both failed. The operating crew is using AFN-P01 to restore S/G levels.
Shortly after this lineup has been obtained, an inadvertent SIAS ‘B’ occurs.
Which one of the following states the operator action (if any) required to maintain or restore feed flow to the S/G?

A. AFN-P01 must be overridden and restarted ONLY.
B. The CST suction valves must be overridden and opened followed by AFN-P01 being overridden and started.
C. The Downcomer Isolation valves must be overridden and opened.
D. AFN-P01 will continue to feed the SGs with no operator action.

A

D. AFN-P01 will continue to feed the SGs with no operator action.

(Note: Only a Train ‘A’ SIAS stops AFN-P01. AFB-P01 has failed so it won’t start on SIAS.)

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4
Q

Unit is operating in Mode 3, 565 F TC, and 2250 psia.
Preparations are in progress for a reactor startup.
AFN-P01 is in service feeding both SGs.
Steam Generator levels are in the normal operating range.
An inadvertent SIAS on both Trains ‘A’ and ‘B’ occurred due to a system malfunction.
With no operator action, which ONE of the following describes the immediate response of the auxiliary feedwater system to this event?

A. AFN running and not feeding either SG.
B. AFB running and not feeding either SG.
C. AFB running and supplying feed to both SGs.
D. AFN running and supplying feed to both SGs.

A

B. AFB running and not feeding either SG.

Note: Train ‘A’ SIAS stops AFN-P01. AFB-P01 starts on SIAS.

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5
Q

AFB-P01 (Essential Auxiliary Feedwater Pump) Auto Starts?

A

AFAS-1 AFAS-2 SIAS CSAS LOP

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6
Q

AFA-P01 (Essential Turbine Driven Auxiliary Feedwater Pump) Auto Starts?

A

AFAS

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7
Q

Unit is at normal operating temperature and pressure. Testing of AFA-P01 in progress.
AFA-P01 is tripped from the control room due to SGA-UV-134 (Main Steam Supply Valve) not operating.
SGA-UV-134A (Main Steam Bypass Valve) has been closed.
Which ONE of the following identifies the required operator actions to reset AFA-P01?

A. Jog full open on AFA-HS-54.
B. Jog full close on AFA-HS-54, jog full open on AFA-HS-54.
C. Reset trip linkage on AFA-HV-54, jog full open on AFA-HS-54.
D. Jog full close AFA-HS-54, reset trip linkage on AFA-HV-54, jog full open on AFA-HS-54.

A

B. Jog full close on AFA-HS-54, jog full open on AFA-HS-54.

Note: AFA-P01 never was tripped mechanically, so linkage is still intact.

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8
Q

The alternate feed for control power for AFN-P01 is?

A. PKA-H11, ‘A’ Battery Charger.
B. PKC-H13, ‘C’ Battery Charger.
C. PKC-M43, ‘C’ DC Bus.
D. PNA-D25, ‘A’ Instrument Bus.

A

A. PKA-H11, ‘A’ Battery Charger.

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9
Q

The unit has tripped and the CRS has diagnosed a LOAF with an inadvertent SIAS.
The CRS directs you to start AFN-P01.
Tc is 565 F.
The SIAS load shed panels have been re-energized. Suction valves are open and downcomer valves are in remote-auto.
Indicating lights for AFN-P01 are lit.
You have gone to ‘Start’ one time using its hand switch (AFN-HS-11).
AFN-P01 is…

A. Running and Feeding both Steam Generators.
B. Running but not Feeding either Steam Generators.
C. Not running, AFN-P01 can be started by going to ‘Stop’ then ‘Start.’
D. Not running, AFN-P01 will start by going to ‘Start’ one more time.

A

C. Not running, AFN-P01 can be started by going to ‘Stop’ then ‘Start’

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10
Q

Unit is operating at rated power.
AFB-P01 has been out of service for 4 hours.
NBN-X03 trips on sudden pressure.
Diesel Generator A fails to start.
All other equipment is operable.
Based on these conditions, the operating crew is expected to:

A. Immediately initiate action to restore at least one AFW train to operable status or be in at least Mode 3 within the next 6 hours.
B. Restore either AFA-P01 or AFB-P01 to operable status within 1 hour or be in at least Mode 3 within the next 6 hours.
C. Immediately initiate action to restore at least one AFW train to operable status.
D. Restore at least one AFW train to operable status within 1 hour or be in at least Mode 3 within the next 6 hours.

A

C. Immediately initiate action to restore at least one AFW train to operable status.

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11
Q

A Steam break in the turbine building has occurred and was isolated by an MSIS.
While the SPTAs are being performed, the following conditions are noted:
AFA-P01 - Under clearance for maintenance.
AFB-P01- 86 Lockout trip following the AFAS actuation.
AO reports that AFB motor is smoking and physically damaged.
Both SG levels are 20% WR and slowly lowering. Feed rate to both SGs is 0 GPM.
Which one of the following can the crew perform to meet RCS Heat Removal safety function of SPTAs?

A. Reset the 86 Lock-Out and restart AFB-P01.
B. Override the downcomer isolation valves and establish feed using AFN-P01.
C. Depressurize a SG for feeding with a condensate pump.
D. Close ADVs until feed flow to a SG has been established.

A

B. Override the downcomer isolation valves and establish feed using AFN-P01.

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12
Q

The Aux Feedwater Pumps suction has been aligned to the Reactor Makeup Water Tank.
A potential for contamination of the Condensate Storage Tank exists due to:

A. The Aux Feed Pump(s) recirculation flow remains aligned to the CST
B. The fact that the suction piping is normally vented back to the CST
C. A gravity flow path that would exist between the RWMT and the CST when the RMWT suction valve(s) are opened
D. Failure of the auto-closure interlock of the mini-flow valves when the Aux Feedwater pumps are aligned to both the RMWT and the CST

A

A. The Aux Feed Pump(s) recirculation flow remains aligned to the CST

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13
Q

The NORMAL feed for control power for AFN-P01 is:

A. PKA-H11, ‘A’ Battery Charger
B. PKC-H13, ‘C’ Battery Charger
C. PKA-D21, ‘A’ DC Distribution Panel
D. PNA-D25, ‘A’ Instrument Bus

A

C. PKA-D21, ‘A’ DC Distribution Panel

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14
Q

Units 1 is in mode 3 following a reactor trip due to a Loss of Cooling Accident.
Pressurizer pressure is 1500 psia and lowering.
AFA-P01 is tagged out for maintenance;
AFB-P01 has tripped on an 86 lockout.
The CRS directs you to start AFN-P01.
AFN suction valve AFN-HV-1 is open and AFN-HV-4 is stroking open at 85% position.
Indicating lights for AFN-P01 are lit.
You have gone to ‘Start’ one time using hand switch (AFN-HS-11). AFN-P01 is…

A. Not running, AFN-P01 will start by going to ‘Start’ one more time.
B. Running and feeding both Steam Generators.
C. Not running, AFN-P01 can be started by going to ‘Stop’ then ‘Start’.
D. Running but not feeding either Steam Generator.

A

C. Not running, AFN-P01 can be started by going to ‘Stop’ then ‘Start’.

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15
Q

Given Unit 1 is in Mode 3 during a plant startup.
Feed to both steam generators has been established from AFN-P01 through the Downcomer Control Valve Bypass Valves.
Both steam generators indicate 22% narrow range level.
Which of the following is the minimum feed rate to each steam generator until level is greater than 27% narrow range?

A. 100 gpm
B. 200 gpm
C. 250 gpm
D. 500 gpm

A

C. 250 gpm

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16
Q

Unit 1 operating in Mode 3, 565 F TC, and 2250 psia.
Preparations are in progress for a reactor startup.
AFN-P01 is in service feeding both SGs Steam Generator levels are in the normal operating range.
An inadvertent SIAS on both Trains ‘A’ and ‘B’ occurred due to a system malfunction.
With no operator action, which ONE of the following describes the immediate response of the auxiliary feed water system to this event?

A. AFN running and not feeding either SG
B. AFB running and not feeding either SG
C. AFN running and supplying feed to both SGs
D. AFB running and supplying feed to both SGs

A

B. AFB running and not feeding either SG

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17
Q

Unit 1 has tripped from rated power due to a loss of feed flow.
AFA-P01 and AFB-P01 have both failed.
The operating crew is using AFN-P01 to restore S/G levels.
Sometime after this lineup has been obtained, the secondary operator realizes he has allowed SG 1 level to exceed 92% NR.
Which one of the following states the operator action (if any) required to maintain (restore) feed flow to the S/G?

A. Override and restart AFN-P01
B. AFN-P01 will continue to feed the S/Gs under these conditions
C. Open the Downcomer Control Valve Bypass valves
D. Override and open the Downcomer Isolation Valves

A

D. Override and open the Downcomer Isolation Valves

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18
Q

Which one of the following is true regarding the steam driven Auxiliary Feedwater Pump (AFA-P01) Trip/Throttle valve?
The Trip/Throttle valve can be reset from the control room with no local action…

A. If AFA-P01 has tripped due to a mechanical overspeed condition
B. After all trips of AFA-P01
C. If AFA-P01 was manually tripped from the Remote Shutdown Panel
D. ONLY after maintenance

A

C. If AFA-P01 was manually tripped from the Remote Shutdown Panel

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19
Q

AFA-P01 has tripped on mechanical overspeed during surveillance testing 5 minutes ago.
Which one of the following represents proper indications for AFA-HV-54 (on B06 or the Local Panel) BEFORE the trip/throttle valve has been properly reset?

A. Both red lights lit
B. Both green lights lit
C. The upper red and the lower green lights lit
D. The lower red and the upper green lights lit

A

B. Both green lights lit

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20
Q

Which of the following identifies the required operator actions to reset AFA-P01 following a manual control room trip (pushbutton)?

A. Jog full close on AFA-HS-54, jog full open on AFA-HS-54
B. Jog full open on AFA-HS-54
C. Reset trip linkage on AFA-HV-54, jog full open on AFA-HS-54
D. Jog full close AFA-HS-54, reset trip linkage on AFA-HV-54, and jog full open on AFA-HS-54

A

A. Jog full close on AFA-HS-54, jog full open on AFA-HS-54

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21
Q

Which of the following identifies the start sequence for the Steam-Driven Essential Auxiliary Feedwater Pump?
The main steam supply:

A. Valves start opening immediately and turbine speed ramps up as the valves open
B. Valves and BYPASS valves open together. The main steam supply BYPASS valves throttle closed to regulate the speed ramp of the turbine
C. Valves immediately start opening when the sequencer sends an ‘OPEN’ signal and the turbine speed ramps up to control flow, when the valves are full open
D. BYPASS valves open first, then thirty (30) seconds later the main steam supply valves open and speed ramps up when the main valves are full open

A

D. BYPASS valves open first, then thirty (30) seconds later the main steam supply valves open and speed ramps up when the main valves are full open

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22
Q

A reactor trip has occurred due to loss of all feed S/G #1 level is 17% WR and lowering rapidly.
S/G #1 pressure is 780 psia and lowering rapidly.
S/G #2 level is 23% WR and lowering slowly.
S/G #2 pressure is 1050 psia and stable.
Based on these conditions, and assuming no operator action, AFA-P01 is…

A. Operating and aligned to receive steam from BOTH Steam Generators
B. Still in standby
C. Operating and aligned to receive steam from Steam Generator #1 ONLY
D. Operating and aligned to receive steam from Steam Generator #2 ONLY

A

A. Operating and aligned to receive steam from BOTH Steam Generators

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23
Q

Unit 1 is operating at rated power AFB-P01 has been out of service for 4 hours.
NBN-X03 trips on sudden pressure.
Diesel Generator A fails to start.
All other equipment is operable.
Based on these conditions, the operating crew is expected to:

A. Immediately initiate action to restore at least one AFW train to operable status
B. Be in Mode 3 within the next 6 hours and be in Mode 4 in the next 12 hours
C. Restore either AFA-P01 or AFB-P01 to operable status within 1 hour or be in at least Mode 3 within the next 6 hours
D. Restore AFB-P01 to operable within 7 days

A

A. Immediately initiate action to restore at lease one AFW train to operable status

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24
Q

Unit 1 has tripped from 100% power due to a failure of a condenser vacuum breaker.
Condenser vacuum is degrading rapidly.
Aux. Feedwater pump ‘B’ is tagged out.
Class 4.160 kV bus PBA-S03 has faulted and is de-energized.
Aux. Feedpump ‘A’ has tripped on overspeed and will not reset.
SG levels are 40% WR and lowering.
RCS T-ave is 560 F and rising. SG levels will continue to lower until…

A. Condensate pumps are aligned
B. Aux. Feedwater pump AFN-P01 is aligned
C. SG levels reach 25.8% WR level then AFAS will actuate
D. T-ave is greater than 564 F then Main Feedwater will feed in Reactor Trip Override (RTO)

A

A. Condensate pumps are aligned

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25
Q

SG-1 level is 42% WR and lowering.
SG-1 pressure is 760 psig and lowering.
SG-2 level is 60% WR and lowering.
SG-2 pressure is 950 psig and rising.
Containment pressure is 1.8 psig and rising.
RCS T-ave is 535 F and lowering Alarm window 5B08C ‘SG-2 > SG-1 CH TRIP’ has locked in.
Any required ESFAS signals have properly actuated.
The Digital Feedwater Control system (DFWCS) is in Reactor Trip Override (RTO) and…

A. Neither SG is currently being fed. AFAS-1 will not initiate but AFAS-2 will at the required level.
B. Only SG 2 is currently being fed. AFAS-1 will not initiate but AFAS-2 will at the required level
C. Neither SG is currently being fed. Neither AFAS-1 or AFAS-2 will initiate at the required level.
D. Both SGs are currently being fed. Neither AFAS-1 or AFAS-2 will initiate at the required level

A

A. Neither SG is currently being fed. AFAS-1 will not initiate but AFAS-2 will at the required level.

26
Q

Unit 1 tripped from 100% power due to a Loss of Offsite Power, LOOP.
No ESFAS actuations have been initiated.
AFN-P01 (Essential Steam Driven AFW pump) is supplying feed to the SGs.
The Control Power Transfer Switch (PBA-U01) is selected to it’s alternate feed source from PKA-H11.
SG pressure is being controlled with ADVs SGA-HV-179/184.
With no other Operator actions, what is the IMMEDIATE operational implications of a loss of the ‘A’ battery charger, PKA-H11?

A. ADVs (SGA-HV-179/184) will fail closed.
B. DG ‘A’ output breaker (PBA-S03B) can not be tripped from the control room.
C. Downcomer containment isolation valves SGA-UV-172 and SGA-UV-175 fail closed.
D. AFN-P01 (Non Essential Motor Driven Aux Feed Pump) can not be tripped from the control room

A

D. AFN-P01 (Non Essential Motor Driven Aux Feed Pump) can not be tripped from the control room

27
Q

Unit 2 has tripped from 100% power.
S/G #1 level is 23% WR and lowering rapidly.
S/G #1 pressure is 900 psia and lowering rapidly.
S/G #2 level is 45% WR and lowering slowly.
S/G #2 pressure is 1050 psia and stable.
Subsequently S/G #1 level is 19% WR and lowering rapidly.
S/G #1 pressure is 780 psia and lowering rapidly.
S/G #2 level is 43% WR and lowering slowly.
S/G #2 pressure is 1050 psia and stable.
Assuming NO operator action, AFA-P01 (Essential Turbine Driven Aux Feed Pump) is…

A. Still in standby
B. Operating and aligned to receive steam from BOTH SGs
C. Operating and aligned to receive steam from SG #1 ONLY.
D. Operating and aligned to receive steam from SG #2 ONLY.

A

B. Operating and aligned to receive steam from BOTH SGs

28
Q

Unit 1 tripped from 100% power. SIAS/CIAS and AFAS-1 have automatically initiated.
S/G #1 pressure is 745 psia and lowering.
S/G #1 level is 8% WR and lowering.
S/G #2 pressure is 760 psia and lowering.
S/G #2 level is 30% WR and lowering.
Auxiliary feedwater flow is 1800 gpm to S/G #1.
Auxiliary feedwater flow is 0 gpm to S/G #2.
Which ONE of the following is the correct condition and proper Operator actions?

A. MSIS has failed. Initiate a manual MSIS immediately.
B. AFAS-2 has failed. Initiate a manual AFAS-2 immediately.
C. MSIS has failed. Obtain CRS permission, then immediately initiate an MSIS.
D. AFAS-2 has failed. Obtain CRS permission, then immediately initiate an AFAS-2.

A

A. MSIS has failed. Initiate a manual MSIS immediately

29
Q

Unit 1 has tripped from 100% power.
An inadvertent ‘A’ train SIAS occurred following the trip.
The CRS has diagnosed a LOAF (Loss of all Feed).
The CRS directs you to start AFN-P01, Start-up Aux Feedpump.
AFN-P01 suction valves CTN-HV-1 and 4 are both open.
You have gone to ‘Start’ one time using its handswitch (AFN-HS-11).
Which ONE of the following is correct, AFN-P01 is…

A. Running and feeding both Steam Generators.
B. Running but not feeding either Steam Generator.
C. Not running, AFN-P01 can be started by going to ‘Stop’ then ‘Start’.
D. Not running, AFN-P01 can be started by going to ‘Start’ one more time.

A

C. Not running, AFN-P01 can be started by going to ‘Stop’ then ‘Start’.

30
Q

Unit 1 was operating at 100% power ALL Main Feedwater is lost.
The Auxiliary Feedwater System will initiate feeding the SGs at (1) WR level and terminate AFW flow at (2).

A. (1) 20.3 (2) 40.8% WR level.
B. (1) 20.3 (2) 44.3% WR level.
C. (1) 25.8 (2) 40.8% WR level.
D. (1) 25.8 (2) 44.3% WR level.

A

C. (1) 25.8 (2) 40.8% WR level.

31
Q

According to the Limitations and Precautions of 40OP-AF01, Essential Auxiliary Feedwater System, Auxiliary Feedwater flow should be maintained ____.
This limitations is intended to ____.

A. (1) less than 250 gpm to both SGs when differential steam pressure is less than 50 psig. (2) balance primary side cooling action
B. (1) less than 250 gpm to both SGs when differential steam pressure is less than 50 psig. (2) minimize damage due to voiding in the feed ring
C. (1) between 250 and 1000 gpm to both SGs when SG levels are less than 27% NR (2) balance primary side cooling action
D. (1) between 250 and 1000 gpm to both SGs when SG levels are less than 27% NR (2) minimize damage due to voiding in the feed ring

A

D. (1) between 250 and 1000 gpm to both SGs when SG levels are less than 27% NR (2) minimize damage due to voiding in the feed ring

32
Q

Unit 1 has tripped on low SG level.
AFAS-1 automatically initiated.
The CRS directed the manual initiation of AFAS-2 on trend.
The operator placed all 4 AFAS-2 hand switches on B05 to initiate position and released the hand switches.
Both SG levels are now 45% WR level and rising.
Which ONE of the following describes the AFAS response to these conditions?

A. AFW flow to both SGs will stop
B. AFW flow to both SGs will continue until SG levels reaches the AFAS reset set point.
C. SG-1 AFW flow will stop, SG-2 AFW flow will continue to feed until overridden by the Operator.
D. SG-1 AFW flow will stop, SG-2 AFW flow will continue until the high level override set point is reached.

A

C. SG-1 AFW flow will stop, SG-2 AFW flow will continue to feed until overridden by the Operator.

33
Q

Unit 1 has tripped from 100% power.
SG-2 Level is 60% WR and lowering rapidly.
SG-2 pressure is lowering rapidly.
SG-1 > SG-2 PRESS CH TRIP has Annunciates.
All 4 channels of SG-1 high delta P are tripped.
MSIS has actuated How does the Engineered Safety Function (ESF) alarm effect the Auxiliary Feedwater (AFW) and Diverse Auxiliary Feedwater (DAFAS) systems as SG-2 level continues to lower?

A. AFAS/DAFAS initiation will be blocked for SG-2
B. AFAS will not initiate, but DAFAS will initiate if Pressurizer Pressure reaches 2409 psia.
C. AFAS/DAFAS will initiate but Auxiliary Feedwater pumps and valve operation will be blocked.
D. AFAS will initiate, the crew is expected to secure AFW flow to a faulted SG.

A

A. AFAS/DAFS initiation will be blocked for SG-2

34
Q

Which one of the following is correct with regards to the Auxiliary Feed System?
The Auxiliary Feedpump emergency water source is from the ___ and can be aligned to the ___.

A. (1) Recycle Monitor Tanks (2) AFB-P01 and AFA-P01 only.
B. (1) Recycle Monitor Tanks (2) AFB-P01, AFA-P01 and AFN-P01
C. (1) Reactor Makeup Water Tank (2) AFB-P01 and AFA-P01 only.
D. (1) Reactor Makeup Water Tank (2) AFB-P01, AFA-P01 and AFN-P01

A

C. (1) Reactor Makeup Water Tank (2) AFB-P01 and AFA-P01 only.

35
Q

Which of the following identifies the bus power supplies to the electric driven Auxiliary Feedwater pumps?

A. 4.16kV bus PBA-S03 and 4.16kV bus PBB-S04
B. 4.16kV bus PBA-S03 and 4.16kV bus NBN-S02
C. 4.16kV bus NBN-S01 and 4.16kV bus PBB-S04
D. 4.16kV bus NBN-S01 and 4.16kV bus NBN-S02

A

A. 4.16kV bus PBA-S03 and 4.16kV bus PBB-S04

36
Q

Unit 1 has entered a refueling outage Tcold is 425 F and lowering.
During an inspection maintenance discovered a fault on the connections between the ‘A’ battery and PKA-M41, 125 VDC class DC bus.
Electrical reports that PKA-M41 needs to be de-energized.
De-energizing PKA-M41 would require entry into LCO 3.7.5 Condition(s)…
LCO 3.7.5, Auxiliary Feedwater System is provided

A. A only
B. C only
C. A and B only
D. A, B and C

A

D. A, B and C

37
Q

Unit 1 has tripped from 100% power due to a complete loss of feed water.
A fault on PKA-M41 has caused the ‘A’ Battery Charger Output Breaker, PKA-M4104, to trip.
AFA-P01 and AFB-P01 are unavailable for use.
In order to start Auxiliary Feedwater Pump AFN-P01, the crew must dispatch an AO to manually ____ and once AFN-P01 has been started, feed flow to both SGs ____

A. 1. Open AFN-P01 Suction Valves HV-1 and HV-4 2. Can be controlled from the Control Room
B. 1. Open AFN-P01 Suction Valves HV-1 and HV-4 2. Must be controlled via manual valve operation in the field
C. 1. Align AFN-P01 control power to the alternate source 2. Can be controlled from the control room
D. 1. Align AFN-P01 Control Power to the alternate source 2. Must be controlled via manual valve operation in the field

A

C. 1. Align AFN-P01 control power to the alternate source 2. Can be controlled from the control room

38
Q

Unit 1 tripped due to a complete loss of Main Feedwater AFB-P01 has been manually started and aligned to feed both SGs Subsequently:
AFAS-1 actuates.
With no operator action, how will the AFAS-1 affect the current feed lineup?
AFA-P01 will start and feed ____ and AFB-P01 will be feeding ____.

A. 1. SG #1 ONLY 2. SG #1 ONLY
B. 1. SG#1 ONLY 2. Both SGs
C. 1. Both SGs 2. SG #1 ONLY
D. 1. Both SGs 2. Both SGs

A

A. 1. SG #1 Only 2. SG #1 Only

39
Q

Unit 1 is commencing a startup following a refueling outage per 40OP-9ZZ23, Outage GOP The crew is preparing to place Auxiliary Feedwater in service.
The PREFERRED pump to operate is Auxiliary Feedwater Pump ____ and per 40OP-9ZZ04, Plant Startup Mode 2 to Mode 1, power can be raised to a MAXIMUM of ____ prior to having to place Main Feedwater in service.

A. 1. AFB-P01 2. 3%
B. 1. AFB-P01 2. 5%
C. 1. AFN-P01 2. 3%
D. 1. AFN-P01 2. 5%

A

C. 1. AFN-P01 2. 3%

40
Q

Unit 1 is operating at 100% power.
Essential Cooling Water Train ‘B’ was declared inoperable at 0800 4/1/16 due to bearing change-out.
All supported equipment was declared inoperable but no actions were entered per LCO 3.0.6 At 0800 on 4/2/16, an inadvertent ‘A’ Train AFAS-1 occurred and the CRS immediately directed an operator to override and close Train ‘A’ Aux Feed Injection Valves to SG #1.
With NO further operator action, the LATEST time and date Unit 1 must be in MODE 3 is…

A. 1400 on 4/2/16
B. 1500 on 4/2/16
C. 1400 on 4/4/16
D. 1400 on 4/5/16

A

A. 1400 on 4/2/16

41
Q

Unit 1 tripped from 100% full power.
SPTA’s in progress SIAS, CIAS, MSIS, and AFAS-1 have initiated.
The RCS is in forced circulation.
S/G #1 pressure is 745 psia and dropping rapidly.
S/G #1 level is 8% WR and dropping rapidly.
S/G #2 pressure is 940 psia and slowly lowering.
S/G #2 level is 37% WR and slowly lowering.
Aux Feedwater flow is >2000 gpm to steam generator #1.
Aux Feedwater flow is 0 gpm to steam generator #2
Which ONE of the following actions correctly address the existing symptoms in accordance with the Excess Steam Demand procedure?

A. AFAS-2 has failed. Throttle and balance flow to each steam generator.
B. SG2 >SG1 lockout has failed. Stop feeding SG #1 and allow SG #2 to feed in RTO
C. AFAS-2 has failed. Initiate maximum flow to SG #2, allow maximum flow to SG #2 until level is greater than 10%
D. SG 2> SG1 lockout has failed. Stop feeding SG #1 and ensure auxiliary feedwater flow is restoring level in SG #2

A

D. SG 2> SG1 lockout has failed. Stop feeding SG #1 and ensure auxiliary feedwater flow is restoring level in SG #2

42
Q

Unit 1 has tripped from 100% power due to a loss of condenser vacuum.
Condenser vacuum is 14 inches HgA and degrading RCP 2B tripped due to an electrical fault 40EP-9EO02, Reactor Trip, has been implemented SG levels are lowering.
Feedwater flow to each SG is currently 0 gpm.
The CRS has directed you to restore SG levels to 45% NR.
Which of the following is an available source and method to restore SG levels?

A. Only Auxiliary Feedwater is available, SGs should be fed at the same rate to maintain equal SG levels.
B. Only Auxiliary Feedwater is available, SG 1 must be fed at a higher flow rate then SG 2 to maintain equal SG levels.
C. Either Auxiliary or Main Feedwater is available, SGs should be fed at the same rate to maintain equal SG levels.
D. Either Auxiliary or Main Feedwater is available, SG 1 must be fed at a higher flow rate than SG 2 to maintain equal SG levels

A

B. Only Auxiliary Feedwater is available, SG 1 must be fed at a higher flow rate then SG 2 to maintain equal SG levels.

43
Q

Unit 1 was tripped from 100% power due to degrading condenser vacuum.
Condenser vacuum degraded to 9.0 HgA and stabilized 40EP-9EO02, Reactor Trip, has been implemented.
In this condition, Main Feedwater Pumps ____ available for use, and maintaining SG pressures in their normal post-trip band ____ be accomplished using only SBCS.

A. 1. ARE 2. CAN
B. 1. ARE 2. can NOT
C. 1. are NOT 2. CAN
D. 1. are NOT 2. can NOT

A

A. 1. ARE 2. CAN

44
Q

Which one of the following describes how the condensate pump mini-flow valve fails?
The mini-flow valve fails____on a loss of air and____on a loss of power.

A. Open; open
B. Open; close
C. Close; open
D. Close; close

A

A. Open;open

45
Q

Four conditions that will cause a Feedwater Pump Trip are:

A. Low suction pressure, MSIS actuation, high exhaust vacuum and loss of seal water.
B. Low suction pressure, thrust bearing wear, over speed and high condenser back pressure.
C. Thrust bearing wear, over speed, low condenser back pressure, and low lube oil flow.
D. High suction pressure, thrust bearing wear, low feedwater pump flow and high exhaust vacuum.

A

B. Low suction pressure, thrust bearing wear, over speed and high condenser back pressure.

46
Q

Which one of the following is the power level we normally place the second main feedwater pump in service?

A. 50-60%
B. 20-40%
C. 35-45%
D. 65-75%

A

A. 50-60%

47
Q

Plant is at 100% power.
Which one of the following describes the response of the main feedwater pump mini-flow valves to a complete loss of instrument air?
The valves…

A. Remain closed due to hydraulic accumulator backup
B. Fail Closed
C. Fail Open
D. Fail as-is

A

C. Fail Open

48
Q

100% power NBN-S01 de-energized due to a fault With NO operator actions, which one of the following is true?

A. After a 10 second time delay the B MFWP trips, RPCB initiates and 5 seconds later the A MFWP trips.
B. The A and B MFWPs immediately tripped as suction pressure decreased to less than 255 psig
C. After a 10 second time delay the A MFWP trips, RPCB initiates and the plant stabilizes at approximately 60%
D. After a 10 second time delay the B MFWP trips, RPCB initiates and the plant stabilizes at approximately 60%

A

A. After a 10 second time delay the B MFWP trips, RPCB initiates and 5 seconds later the A MFWP Trips.

49
Q

Which ONE of the following statements is true regarding the MFWP mini-flow control valve?

A. Remains full open until total feedflow is > 7000 gpm
B. Closes on MFPT Trip
C. Opens on MFPT Trip
D. Fails Closed on Loss of Eletrical Power

A

B. Closes on MFPT Trip

50
Q

Which one of the following conditions would cause an ‘A’ MFWP Turbine trip?

A. High Vibration at 14 mils.
B. Suction pressure at 265 psig for 12 seconds
C. Inactive thrust bearing wear oil pressure at 35 psig
D. Condenser vacuum is 14.5 inches HgA

A

D. Condenser vacuum is 14.5 inches HgA

51
Q

Reactor is tripped Condenser air in leakage through a damaged seal has caused condenser vacuum to degrade to 9.5” HgA and stabilize there.
Based on these conditions Main Feedwater is currently….

A. Available with ADV’s only
B. Unavailable AFW must be used with ADV’s only
C. Available with SBCS or ADV’s
D. Unavailable AFW must be used with ADV’s or SBCS

A

C. Available with SBCS or ADV’s

52
Q

Which of the following will prevent the Main Feed Pump Turning Gear from STARTING?

A. Low oil pressure on the turbine bearings
B. High pressure on the pump bearings
C. High eccentricity >5 miles
D. Speed <2 rpm

A

A. Low oil pressure on the turbine bearings

53
Q

Which of the following parameters will result in a start of the ‘A’ Main Feed Pump Emergency Lube Oil Pump?

A. High Pressure Oil Header 180 psig
B. Main Feed Pump discharge pressure 1800 psig
C. Bearing Oil supply pressure 30 psig
D. Loss of NNN-D15

A

C. Bearing Oil supply pressure 30 psig

54
Q

Plant power is at 90% power Loss of Non-Class 120 VAC power to NNN-D15 occurs.
With NO operator action, which one of the following will occur?

A. Reactor trip occurs on high RCS pressure due to a main turbine trip
B. RPCB initiates causing the main turbine to be setback to 60% with no runback occurring.
C. RPCB initiates causing turbine load to be setback and runback as necessary to balance Tavg and steam header pressure
D. Reactor trip occurs on low steam generator level

A

D. Reactor trip occurs on low steam generator level

55
Q

A Reactor Power Cutback occurs in response to a loss of a Main Feedwater Pump.
The cutback signal is generated by Main Feedwater Pump ____ and the associated Turbine Setback signal will lower turbine load ____

A. 1. Control oil pressure lowering to 75 psig
2. At 480%/min to ~60% turbine load
B. 1. Control oil pressure lowering to 75 psig
2. At 130%/min to match turbine power with reactor power
C. 1. Discharge flow lowering to 8% below setpoint
2. At 480%/min to ~60% turbine load
D. 1. Discharge flow lowering to 8% below setpoint
2. At 130%/min to match turbine power with reactor power

A

A. 1. Control oil pressure lowering to 75psig

2. At 480%/min to ~60% turbine load

56
Q

Unit 1 is commencing a startup following a refueling outage per 40OP-9ZZ23, Outage GOP
The crew is preparing to place Auxiliary Feedwater in service.
The PREFERRED pump to operate is Auxiliary Feedwater Pump ____ and per 40OP-9ZZ04, Plant Startup Mode 2 to Mode 1, power can be raised to a MAXIMUM of ____ prior to having to place Main Feedwater in service.

A. 1. AFB-P01
     2. 3%
B. 1. AFB-P01
     2. 5%
C. 1. AFN-P01
    2. 3%
D. 1. AFN-P01
     2. 5%
A

C. 1. AFN-P01

2. 3%

57
Q

Unit 1 is operating at 100% power.
NBN-S02 faults and is de-energized.
Based on these conditions, ____ have tripped, and, in addition to 40AO-9ZZ12, Degraded Electrical Power, the crew will enter ____ to mitigate this event.

A. 1. Condensate Pump C and Heater Drain Pump A
2. 40AO-9ZZ07, Loss of Condenser Vacuum
B. 1. Condensate Pump C and Heater Drain Pump A
2. 40AO-9ZZ09, Reactor Power Cutback (Loss of Feedpump)
C. 1. Condensate Pumps A and B and Heater Drain Pump B
2. 40AO-9ZZ07, Loss of Codenser Vacuum
D. 1. Condensate Pumps A and B and Heater Drain Pump B
2. 40AO-9ZZ09, Reactor Power Cutback (Loss of Feedpump)

A

B. 1. Condensate Pump C and Heater Drain Pump A

2. 40AO-9ZZ09, Reactor Power Cutback (Loss of Feedpump)

58
Q

Unit 1 has tripped from 100% power
The Loss of All Feed Procedure, 40EP-9EO06 has been entered due to a loss of Main Feedwater.
Both Steam Generators have reached Dryout condition.
Which ONE of the following describes the plant response to continued Dryout conditions in both steam generators?

A. RCS temperature and pressure will decrease, Safety Injection will actuate.
B. RCS temperature and pressure will increase, Pressurizer Safety Valves will lift.
C. Steam Generator Temperature and pressure will increase, Steam Generator Safety Valves will lift.
D. Steam Generator pressure will increase and temperature will decrease, Steam Generator Safety Valves will NOT lift.

A

B. RCS temperature and pressure will increase, Pressurizer Safety Valves will lift.

59
Q

Four conditions that will cause a Feedwater Pump Trip are Lo Vacuum,…

A. Hi vibrations, Hi discharge pressure and Thrust Bearing Wear.
B. Lo bearing oil pressure, Loss of speed signal and Hi vibrations
C. Thrust Bearing Wear, Lo suction pressure and Hi discharge pressure
D. Lo suction pressure, Lo bearing oil pressure and Loss of speed signal

A

C. Thrust Bearing Wear, Lo suction pressure and Hi discharge pressure

60
Q

Unit 1 is operating at rated power
The Secondary is in a normal full power alignment
Feedwater Pumps A & B low suction pressure alarms (white alarms lights) have annunciated
Which one of the following conditions could have occrued?

A. Lo Lo level in the A Low Pressure heater strings
B. Instrument Air isolated to B condensate pump miniflow valve
C. Condensate Demin Bypass valve CDN-PDV-195 output is 0%
D. Either of the B condensate suction valves CDN-HV-1 or 2 has closed

A

B. Insturment Air isolated to B condensate pump miniflow valve

Systems 11-13-19 (41 decks)

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