Week 11 Flashcards
WHICH ONE of the following requires that boration be established per 40AO-9ZZ01, “EMERGENCY BORATION”?
A. A plant cooldown has been directed by the CRS.
B. Entry into any Emergency Operating Procedure.
C. Shutdown Margin has been lost.
D. Entry into the Functional Recovery Procedure.
C. Shutdown Margin has been lost.
Using the Functional Recovery Procedure, the CRS has identified the success paths needed to mitigate the event in progress.
- RC-1
- MVAC-2 In Jeopardy
- MVDC-1
- IC-2 In Jeopardy
- PC-3 In Jeopardy
- HR-1
- CI-1
- CTPC-1
Using the table above identify the correct performance order.
A. MVAC-2, IC-2, PC-3, RC-1
B. MVAC-2, PC-3, IC-2, RC-1
C. MVAC-2, IC-2, PC-3, MVDC-1
D. RC-1, MVAC-2, MVDC-1, IC-2
C. MVAC-2, IC-2, PC-3, MVDC-1
The number of starts for an electric motor in a given period of time should be limited because
A. overheating of the windings can occur due to a high starting current.
B. rotor damage can occur due to excessive cyclic stresses on the shaft.
C. overheating of the windings can occur due to shorting within the stator.
D. rotor damage can occur due to excessive axial displacement of the shaft.
A. overheating of the windings can occur due to a high starting current.
- Unit experiences a transient which causes a Rx trip.
- AFA-P01 is out of service for scheduled maintenance.
- A loss of the switchyard occurs following the RX trip.
- Emergency Diesel Generator A trips due to high generator differential.
- AFB-P01 trips when started.
- All other systems are operating as designed.
WHICH ONE of the following correctly identifies the correct procedure for plant stabilization?
A. 40EP-9EO08, BO.
B. 40EP-9EO09, FRP.
C. 40EP-9EO06, LOAF.
D. 40EP-9EO07, LOOP/LOFC.
B. 40EP-9EO09, FRP.
- Unit 1 is operating at rated power.
- AFN-P01 is out of service.
- The reactor trips.
- Loss of Offsite Power.
- PKA-M41 trips.
- SPB-P01 (Spray Pond B) trips.
- All other systems are operating as designed.
Which ONE of the following correctly identifies the correct procedure for plant stabilization?
A. 40EP-9EO08, BO.
B. 40EP-9EO09, FRP.
C. 40EP-9EO06, LOAF.
D. 40EP-9EO07, LOOP/LOFC.
B. 40EP-9EO09, FRP.
- Unit 1 experiences a transient which causes a Rx trip.
- AFA-P01 is tripped on overspeed.
- A loss of vacuum occurs following the RX trip.
- S/U Transformer X03 trips on sudden pressure.
- PBA-S03 normal supply breaker trips with a 86 lock-out due to over-current.
- AFB-P01 trips when started.
- All other systems are operating as designed.
WHICH ONE of the following correctly identifies the correct procedure for plant stabilization?
A. 40EP-9EO08, BO.
B. 40EP-9EO09, FRP.
C. 40EP-9EO06, LOAF.
D. 40EP-9EO07, LOOP/LOFC.
B. 40EP-9EO09, FRP.
OR
C. 40EP-9EO06, LOAF.
- The Unit is at 300 Degrees and 1200 psia
- Heatup is in progress to NOP/NOT
- PZR level is at 33% and stable
The following indications are obseerved:
- Steam Generator levels and pressures are stable
- PZR level and pressure are rapidly lowering
- RU-1 alert alarms annunciate for channels 1 and 3
- Containment Pressure and Temperature are increasing
- ESF Transformer NBNX03 trips due to Sudden Overpressure
- SIAS/CIAS/MSIS actuations occur
- HPSI “B” starts and trips on ground fault
- DG”A” tripped on overspeed when it started
What procedure should now be implemented?
A. Functional Recovery Procedure
B. Loss of Coolant Accident
C. Lower Mode Functional Recovery Procedure
D. Excess Steam Demand
A. Functional Recovery Procedure
- FRP is in progress.
- Main steam safety valve has failed open on SG #1.
- RU-4 is in HIGH Alarm.
- LOOP
- DG ‘A’ tripped on generator differential.
- All other ESFAS systems operate as designed.
Assuming no other events, which success path should be performed first?
A. MVAC-2, DGs
B. IC-2, SI
C. HR-2, SG with SI
D. CI-1, Auto/man CTMT ISOL
D. CI-1, Auto/man CTMT ISOL
- Unit tripped from 100% full power due to low SG # 1 pressure.
- SIAS/CIAS/MSIS has occurred
- Containment pressure is normal
- There is no RU-1 alarm
- AFB-P01 out of service for maintenance.
- A loss of offsite power has occurred.
- PKA-M41 trips on overcurrent.
- DG “A” trips due to the loss of PKA-M41.
- AFA-P01 fails to come up to speed.
- The appropriate procedure was entered after the SPTAs.
- No other equipment is out of service or has malfunctioned.
WHICH ONE of the following correctly identifies the safety function(s) not being met for this event?
A. MVAC, IC
B. HR, CI
C. MVAC, HR
D. HR, IC
C. MVAC, HR
- The unit tripped from 100% full power due to a large break LOCA
- NBN-X03 has faulted on sudden pressure
- ‘A’ DG is tagged out
- On the trip, a loss of offsite power occurs
- ‘B’ LPSI pump develops a leak on the suction piping
- AFB-P01 trips on a 86 lockout
- No other equipment is out of service or has malfunctioned
Which one of the following correctly identifies the success path the CRS should enter first?
A. IC-2: SI
B. MVAC-2; DGs
C. MVAC-3; GTGs
D. HR-2; SG with SI
B. MVAC-2; DGs
An operating crew has just completed the appropriate maintenance of vital auxiliaries success paths for power restoration. The status of electrical buses energized are as follows:
- PBA-S03 is energized from EDG B
- PNA-D25 is energized from Inverter PNA-N11
- PKA-M41 is energized from it’s battery
- PKC-M43 is energized from it’s battery
- All other buses are de-energized
The maintenance of vital auxiliaries safety function is:
A. satisfied
B. not satisfied because PNC-D27 is not energized.
C. not satisfied because all energized buses are not in the same train.
D. not satisfied because both PKA-M41 and PKC-M43 do not have their associated chargers in service.
A. satisfied
- The reactor is tripped.
- A LOCA is in progress.
- Pressurizer pressure is 650 psia and decreasing slowly.
- RCS subcooling is 5 degrees and decreasing slowly.
- The Functional Recovery Procedure, 40EP-9EO09, has been implemented.
Which one of the following pressure control success paths should be implemented?
A. PC-1 Subcooled Pressure Control
B. PC-2 RCGVS
C. PC-3 Saturated Pressure Control
D. PC-4 Controlled Steaming
C. PC-3 Saturated Pressure Control
With a steam generator tube ruptured and faulted SG that is steaming to atmosphere, the safety analyses assumes that feed is restored in approximately ___ minutes.
A. 10
B. 17
C. 30
D. 60
B. 17
- Unit 1 is operating at rated power.
- In order to support maintenance, the operators have placed RU-29 in bypass on the Train BOP-ESFAS cabinet.
- RU-30 now fails high.
Which one of the following describes the plant response?
A. Train “B” CREFAS initiates only.
B. Both trains of CREFAS initiate.
C. Both trains of CREFAS initiate, resulting in across-trip to FBEVAS.
D. No effect
B. Both trains of CREFAS initiate.
- The CRS has correctly diagnosed a Steam Generature Tube Rupture with an ESD from the #1 Steam Generator into Containment.
- A delta P lockout of #1 Steam Generator has occurred.
- All expected ESFAS actuations have occurred.
Upon entering the Funtional Recovery Procedure, the CRS directs the Secondary Operator to…
A. Start feeding the #2 S/G with all available AFW pumps at a rate of 1360 gpm.
B. Start feeding the #1 S/G with all available AFW pumps at a rate of 1360 gpm.
C. Control S/G#2 pressure using SBCS valves 3 and 6 to the condenser to avoid a radioactive release to the public.
D. Place ARN-HS-19, Post Filter Mode Select Switch, in “THRU FILTER MODE.”
D. Place ARN-HS-19, Post Filter Mode Select Switch, in “THRU FILTER MODE.”
