Sro Containment Spray Wk3

Front 1

A large steam line break in containment has caused "C" steam generator to dry out with containment pressure exceeding 27 psig.Which one of the following Engineered Safety Features (ESF) does NOT require the initiating event to clear before it may be reset? A. Control room ventilation isolation signal.B. Fuel Building Isolation Signal.C. Auxiliary feedwater actuation signal.D. Containment Spray Actuation signal.

Back 1

D

Front 2

What is the state of the Containment Spray Pumps, given the following information?* Loss of Offsite Power* Safety Injection Signal actuation due to small break LOCA* Containment pressure reached 12 psig and remains at 12 psig. A. Containment Spray Pumps were not started by the LOCA Sequencer because a Containment Spray Actuation Signal (CSAS) is not present.B. Containment Spray pumps were not started by the Shutdown Sequencer because a Containment Spray Actuation Signal (CSAS) is not present.C. Containment Spray pumps were started by the Shutdown Sequencer because a Containment Spray Actuation Signal is present.D. Containment Spray pumps were started by the LOCA Sequencer because a Containment Spray Actuation Signal is present.

Back 2

A

Front 3

What are the power supplies for Containment Spray Pumps "A" and "B" respectively? A. NG0103 / NG0402B. NK0112 / NK0411C. PB0302 / PB0404D. NB0102 / NB0203

Back 3

D

Front 4

What is the power supply to Containment Spray Pump "A"? A. NB0107B. NB0103C. NB0102D. NB0104

Back 4

C

Front 5

I & C has Containment Spray Bistable Channel GN PT-935 in "test" (BYPASSED), with the transmitter output run up for bistable setpoint verification. While in this condition, GN PT-937 output is inadvertently set to 30 psig.What, if any, actuations would result? A. Neither containment Spray nor Safety Injection Signal actuation.B. Safety Injection Signal actuation.C. Both Containment Spray Signal and Safety Injection signal actuation.D. Containment Spray Signal actuation.

Back 5

A

Front 6

What condition would close Containment Spray Additive Tank (TEN01) Isolation Valve, EN HV-15, following a CSAS? A. LS-LL actuated on SAT.B. CSAS Reset.C. CSAS Reset, LS-L actuated on SAT.D. EN-HIS-15 to close.

Back 6

A

Front 7

How is the Containment Spray Pump suction switchover from the RWST, to the Containment Recirculation Sumps performed? A. Containment Recirculation Sump valves(EN HV-1 & 7) automatically open then the RWST valves(BN HV-3 & 4) automatically close.B. Manually open the Containment Recirculation Sump valves(EN HV-1 & 7) then the RWST valves automatically close(BN HV-3 & 4).C. Containment Recirculation Sump valves(EN HV-1 & 7) automatically open then manually close the RWST valves(BN HV-3 & 4).D. Manually open the Containment Recirculation Sump valves(EN HV-1 & 7) then manually close the RWST valves(BN HV-3 & 4).

Back 7

D

Front 8

What containment pressure and coincidence will cause Containment Spray to actuate? A. One channel at 17 psig.B. Two channels at 27 psig.C. One channel at 27 psig.D. Two channels at 17 psig.

Back 8

B

Front 9

Given the following information:* Large break LOCA with subsequent Safety Injection Signal Actuation* Containment Pressure is 12 psig.* Containment Isolation Signal "A" (CIS-A) and Containment Isolation Signal "B" (CIS-B) have not been reset.* Assume the Containment Spray System has been put on recirculation.What is the current status of the Containment Sump Suction Isolation valves? A. An interlock failed because EN HV - 1 and EN HV - 7 receive a CIS-A to close and CIS-A needs to be reset to be opened.B. An interlock failed because EN HV - 1 and EN HV - 7 receive CIS-B to close and CIS-B needs to be reset.C. There was no interlock failure, CIS-A does not need reset to allow EN HV-1 and EN HV-7 to be opened.D. An interlock failed because EN HV - 1 and EN HV - 7 receive CIS-A and CIS - B to close and both CIS-A and CIS-B need to be reset.

Back 9

C

Front 10

What containment pressure and coincidence will cause Containment Spray to actuate? A. One channel at 17 psig.B. One channel at 27 psig.C. Two channels at 27 psig.D. Two channels at 17 psig.

Back 10

C

Front 11

To maximize iodine removal characteristics, where does the Containment Spray System spray? A. Sprays sodium hydroxide solution at the throat of the PRT rupture disc.B. Sprays RWST water from headers located high in containment.C. Sprays RWST water directly onto the RCS hot leg piping.D. Sprays RMW around PZR relief valves.

Back 11

B

Front 12

The Containment Spray System's eductors use flow from which system line as the actuating fluid in order to create the eductor action? A. Containment Spray Additive TankB. Containment Spray pump suction lineC. Reactor Makeup Water Storage TankD. Containment Spray Pump discharge line

Back 12

D

Front 13

What is the result of the Spray Additive Tank reaching the low level alarm of 16% after a Containment Spray Actuation? A. The Containment Recirculation Sump Isolation Valves must be opened to protect the suction to the Spray Pumps.B. The control circuit will allow manual closure of the Spray Additive Tank Isolation Valves.C. The Containment Spray Pumps trip to protect from loss of suction.D. The control circuit will auto close the Spray Additive Tank Isolation valves .

Back 13

B

Front 14

A Safety Injection Actuation Signal occurred 5 minutes ago and has not been reset. Containment pressure rises to the Containment Spray Actuation Signal setpoint.What now occurs? A. Containment Spray pumps start immediately.B. Containment Spray pumps must be started manually.C. Containment Spray pumps start at 15 seconds on the sequencer.D. Containment spray pumps start 40 seconds after the sequencer times out.

Back 14

A

Front 15

What is the setpoint for Containment Spray Actuation Signal (CSAS)? A. 60 psigB. 3.5 psigC. 17 psigD. 27 psig

Back 15

D

Front 16

What happens upon the receipt of a Spray Additive Tank low-low level and what is the resulting action? A. 1% / spray pumps automatically stopB. 10% / tank nitrogen supply valve closesC. 3% / RWST suction valves to Containment Spray pumps close.D. 5%, / tank outlet valves close

Back 16

D

Front 17

After a Safety Injection Signal Actuated and was reset, containment pressure increased to 27 psig.What is the response of the Containment Spray System for this condition? A. Valves do not reposition and spray pumps do not start.B. Valves reposition and spray pumps start immediately.C. Valves reposition and spray pumps start at 15 seconds on the sequencer.D. Valves reposition but spray pumps do not sequence on.

Back 17

C

Front 18

How is gas vapor induction from the Containment Spray Additive Tank into the suction headers of the Containment Spray Pumps is prevented? A. The close permissive on tank low-low level allows the operator to manually close tank isolation valves.B. The tank isolation valves automatically close on low-low level.C. The tank isolation valves automatically close on low eductor suction flow.D. The tank isolation valves automatically close on low tank pressure.

Back 18

B

Front 19

What is the state of the Containment Spray Pumps, given the following information?* Loss of Offsite Power* Safety Injection Signal actuation due to small break LOCA* Containment pressure reached 12 psig and remains at 12 psig. A. Containment Spray pumps were started by the LOCA Sequencer because a Containment Spray Actuation Signal is present.B. Containment Spray Pumps were not started by the LOCA Sequencer because a Containment Spray Actuation Signal (CSAS) is not present.C. Containment Spray pumps were started by the Shutdown Sequencer because a Containment Spray Actuation Signal is present.D. Containment Spray pumps were not started by the Shutdown Sequencer because a Containment Spray Actuation Signal (CSAS) is not present.

Back 19

B

Front 20

Given the following information:* Large break LOCA with subsequent Safety Injection Signal Actuation* Containment Pressure is 12 psig.* Containment Isolation Signal "A" (CIS-A) and Containment Isolation Signal "B" (CIS-B) have not been reset.* Assume the Containment Spray System has been put on recirculation.What is the current status of the Containment Sump Suction Isolation valves? A. An interlock failed because EN HV - 1 and EN HV - 7 receive a CIS-A to close and CIS-A needs to be reset to be opened.B. An interlock failed because EN HV - 1 and EN HV - 7 receive CIS-B to close and CIS-B needs to be reset.C. An interlock failed because EN HV - 1 and EN HV - 7 receive CIS-A and CIS - B to close and both CIS-A and CIS-B need to be reset.D. There was no interlock failure, CIS-A does not need reset to allow EN HV-1 and EN HV-7 to be opened.

Back 20

D

Front 21

I & C has Containment Spray Bistable Channel GN PT-935 in "test" (BYPASSED), with the transmitter output run up for bistable setpoint verification. While in this condition, GN PT-937 output is inadvertently set to 30 psig.What, if any, actuations would result? A. Neither containment Spray nor Safety Injection Signal actuation.B. Safety Injection Signal actuation.C. Both Containment Spray Signal and Safety Injection signal actuation.D. Containment Spray Signal actuation.

Back 21

A

Front 22

What condition would close Containment Spray Additive Tank (TEN01) Isolation Valve, EN HV-15, following a CSAS? A. EN-HIS-15 to close.B. LS-LL actuated on SAT.C. CSAS Reset, LS-L actuated on SAT.D. CSAS Reset.

Back 22

B

Front 23

How is the Containment Spray Pump suction switchover from the RWST, to the Containment Recirculation Sumps performed? A. Manually open the Containment Recirculation Sump valves (EN HV-1 & 7) then the RWST valves automatically close (BN HV-3 & 4).B. Manually open the Containment Recirculation Sump valves (EN HV-1 & 7) then manually close the RWST valves (BN HV-3 & 4).C. Containment Recirculation Sump valves (EN HV-1 & 7) automatically open then manually close the RWST valves (BN HV-3 & 4).D. Containment Recirculation Sump valves (EN HV-1 & 7) automatically open then the RWST valves (BN HV-3 & 4) automatically close.

Back 23

B

Front 24

The spray additive system limit on ___________ ensures a pH of 8.5-11 for recirculation _______________________. A. NaOH / from the containment sump following a LOCAB. NaOH / through the reactor coolant system after a LOCAC. LiOH / through the reactor coolant system after a LOCA.D. LiOH / from the containment sump following a LOCA

Back 24

A

Front 25

A large break LOCA has occurred and the Control Room staff is responding using the EMGs. The following plant conditions exist:* RCS pressure 40 psig* CTMT pressure 29 psig* RWST level 16% and decreasingWhat is the condition of the Containment Spray System? A. Containment Spray Pumps running in recirculation mode.B. Containment Spray Pumps running in injection mode.C. Containment Spray Pumps would not be running for this condition.D. Containment Spray Pumps in Pull to Lock due to RWST level.

Back 25

B

Front 26

IF a Containment Spray Actuation Signal (CSAS) is received during the injection phase of a Loss of Coolant Accident, where do the Containment Spray pumps take their suction? A. Demineralized Water Storage TankB. Reactor Makeup Water Storage TankC. Condensate Storage TankD. Refueling Water Storage Tank

Back 26

D

Front 27

What is the flowpath of ESW from the Containment Air Coolers during normal operations? A. Flow is through a throttled discharge valve.B. Flow through the main outlet valves at <2000 gpm.C. Flow is through a common outside containment isolation valve.D. Flow is normally isolated and initiates on a SIS.

Back 27

A

Front 28

Describe how the hydrogen mixing fans respond to a SIS actuation? A. They are started in or switched to slow speed after 60 seconds.B. They are load shed and restarted in fast speed after 60 seconds.C. They are load shed and not restarted.D. They are shifted to slow speed immediately.

Back 28

A

Front 29

What are the two locations where the containment coolers can be operated? A. Locally at the coolers and Auxiliary Shutdown Panel.B. Load Center breakers and locally at the coolers.C. Main Control Board and Auxiliary Shutdown Panel.D. Main Control Board and load center breakers.

Back 29

D

Front 30

Where do the Control Rod Drive Mechanism fans take suction and where they discharge to? A. On the shroud surrounding the Reactor Vessel head / Containment atmosphere.B. On the Pressurizer compartment / high in Containment.C. On the Steam Generator compartments / inside the Primary Shield Wall.D. On the roof of the Auxiliary Building / the Plant Unit Vent

Back 30

A

Front 31

When will the Containment Cooling System Pressurizer Cooling Fan normally be operated? A. Upon a containment isolation signal phase "B" actuation.B. Upon a Safety Injection Signal actuation.C. Because the pressurizer relief tank is out of service.D. When Containment Fan Cooler "D" is out of service.

Back 31

D

Front 32

Where do the four Containment Hydrogen Control System Hydrogen Mixing Fans take suction? A. Inside the Reactor vessel cavityB. From the Steam Generator CompartmentsC. Inside the Reactor vessel head shroudD. High inside Containment

Back 32

B

Front 33

What is the response of the Containment Fan Coolers to a LOCA inside containment? A. Containment Fan Coolers load shed; then restart in speed selected on handswitch.B. Containment Fan Coolers running in fast will stop then restart in slow speed and non-running fans start in slow speed.C. Containment Fan Coolers receive a load shed signal and restart after a 60 second time delay.D. Containment Fan coolers running in slow will shift to fast speed and non-running fans start in fast speed.

Back 33

B

Front 34

Containment Cooler "A" fan is running in fast speed when a Safety Injection Signal (SIS) is actuated.How does "A" Containment Cooler respond to this actuation? A. It will continue to run in fast speed.B. It will stop, then restart in slow speed when the LOCA sequencer times out (60 seconds).C. It will continue to run but in slow speed.D. It will stop then restart in slow speed when the LOCA sequencer reaches 35 seconds.

Back 34

D

Front 35

During a Loss of Coolant Accident (LOCA) conditions inside Containment; fusible links in the duct work for the Containment Cooling System are designed to melt.What is the temperature at which they melt and the design function they fulfill? A. 1800F and they allow bypass dampers inside the duct work to open and pass more air flow down to the bottom of the reactor cavity.B. 1600F and they allow a plate in the duct to open, short circuiting flow directly to the Containment atmosphere.C. 1600F and they restrict flow so the dense post LOCA atmosphere is more completely cooled.D. 1800F and they close off flow forcing hydrogen to form pockets in the bottom of Containment.

Back 35

B

Front 36

Assuming all equipment functions as designed, what will be the status of the Containment Cooling Fans and the Hydrogen Mixing Fans two minutes after the receipt of a Safety Injection Signal? A. Cooling fans running in slow; mixing fans running in selected speed.B. Both sets of fans running in the selected speed.C. Both sets of fans running in slow speed.D. Mixing fans running in slow; cooling fans running in selected speed.

Back 36

C

Front 37

How does the Containment Cooling System prevent overheating of the fan motors due to excessive backpressure during a LOCA with adverse containment environment? A. Fusible links in the discharge ducts open large vents directly into the containment atmosphere.B. ESW flow to the coolers doubles in volume and provides ambient cooling for the motors.C. Voltage is increased on the load center buses during the load shed, decreasing motor heat.D. The fan motors cycle on and off at 180 second intervals.

Back 37

A

Front 38

Control Rod Drive Mechanism Fans are powered from which power supplies? A. NG and PK busesB. PG and NG busesC. PK and PG busesD. PB and NB buses

Back 38

B

Front 39

From what source are the Containment Cooling System Cavity Cooling Fans powered? A. PK busesB. NG busesC. PA busesD. PG buses

Back 39

D

Front 40

Given the following information:* Loss of Offsite Power* Switchyard not available* Bus NB01 not available due to bus faultWhat is the correct available Containment Cooling System equipment 20 minutes after this event? A. Four Hydrogen Mixing Fans / Four Containment Fan Coolers / One CRDM FanB. Two Hydrogen Mixing Fans / Two Containment Fan Coolers / One CRDM Fan C. Two Hydrogen Mixing Fans / Two Containment Fan Coolers / No CRDM FansD. Four Hydrogen Mixing Fans / Four Containment Fan Coolers / No CRDM Fans

Back 40

B

Front 41

The unit is operating at 100% RTP when the following occur: - 0430 on 4/2, "A" containment spray train is declared inoperable. - 1800 on 4/4, "A" containment cooling train is declared inoperable.What are the required TS Actions? A. Restore the "A" containment spray train to OPERABLE by 0430 on 4/5 and the "A" containment cooling train by 0430 on 4/6.B. Commence a power reduction by 1900 on 4/4 and be in Mode 3 by 0100 on 4/5.C. Restore the "A" containment spray train to OPERABLE by 0430 on 4/5 and the "A" containment cooling train by 1800 on 4/11.D. Restore the "A" containment spray train and the "A" containment cooling train to OPERABLE by 0430 on 4/5.

Back 41

C

Front 42

The plant is at 100% power when "B" Train Containment Spray System is discovered inoperable. I & C requests to take a control voltage reading on "A" Containment Spray Pump (CSP). To connect leads to the terminal lugs requires putting "A" CSP handswitch in PTL for about five minutes.How should the CRS answer the request? A. It is not acceptable because both trains of CTMT Spray would be inoperable.B. It is acceptable provided all four CTMT Coolers are operable.C. It is not acceptable because it would invalidate the last STS.D. It is acceptable, the pump would be inoperable for less than one hour.

Back 42

A

Front 43

The unit is operating at 100% RTP when the following equipment becomes inoperable: - 0430 on 4/2, the A Containment spray train is declared inoperable. - 1800 on 4/2, the B Containment spray train is declared inoperable.What are the required TS Actions? A. Restore both trains to OPERABLE by 0430 on 4/5 or be in Mode 3 by 1030 on 4/5.B. Initiate a power reduction by 1800 and be in Mode 3 by 0200 on 4/3.C. Initiate a power reduction by 1900 and be in Mode 3 by 0100 on 4/3.D. Restore both trains to OPERABLE by 1800 on 4/5 or be in Mode 3 by 2400 on 4/5.

Back 43

C

Front 44

The reactor is at 75% power with Containment Air Cooler Condensate flow rate monitoring system out of service. The RO discovers Containment Atmosphere Radiation Monitor, GT RE-31, has a low flow failure.What, if any, is the required action? A. No action is required.B. Containment Purge valves must be maintained closed.C. Restore GT RE-31 to operable status within 72 hours or be in Hot Standby within six hours and in Cold Shutdown within the following 30 hours.D. Grab samples must be taken of the Containment atmosphere every 24 hours.

Back 44

A