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DAEC
DAEC Week 7 plus review
16
Engineering
Professional
08/15/2012

Additional Engineering Flashcards

 


 

Cards

Term

1P012A Condensate Service Water Pump is running and you investigate why. What could have caused the pump to start and when will it de-energize?

A) The pump is always running and is considered normal.

B) The pump had an autostart at 115# header pressure and will de-energize when manually secured.

C) The pump had an autostart at 115# header pressure and will de-energize 30 minutes after pressure is restored to 115# header pressure.

D) The pump was locally started and will auto shutoff after 30 minutes above 115# header pressure.

Definition

The standby pump will auto start if discharge header pressure falls to 115 psig. The pump will run for 30 minutes after pressure is restored to 115 psig and then will autostop

 

 

 

C

Term

1P013A Demin Water Transfer Pump is located where?

 

Definition
TB 734' Level Basement
Term

1P013B Demin Water Transfer Pump is running and you investigate why. What could have caused the pump to start and when will it de-energize?

A) The pump is always running and is considered normal.

B) The pump was started locally and will be manually secured since it has no shutoff feature.

C) The pump had an autostart at 115# header pressure and will de-energize 30 minutes after pressure is restored to 115# header pressure.

D) The pump was locally started and will auto shutoff after 30 minutes above 115# header pressure.

Definition

B

 

The Demineralized Water Transfer Pumps are controlled by local handswitches HS5200A and HS5200B. The handswitches are two position, maintained contact type switches, with positions START-STOP.

Term

What is the normal system lineup for the Condensate Service Water Pumps?

A) One Pump running and one in standby.  

B) One pump in standby and one in reserve

C) One pump running and one in reserve.   

D) Both pumps are in standby.                  

Definition

NOTE:          Current system Normal Operation is to have 1P011, Condensate Service Water Jockey Pump operating continuously and one of the 1P012 (A or B) in Standby. If system load dictates higher usage, place the secured pump in operation. The Standby pump will still be available if pressure drops below 115#.

Term

The purpose of the condensate and demineralized water system is to:

 
 
 
 
 
 
 

 

Definition
Store and transfer condensate required for Nuclear Steam Supply System services and operation.
Term

To prevent the CSTs freezing during cold weather, they are kept warm by:

 

A) Built in heaters                                                   

B) Hot water circulated through a heat exchanger.

 C) HPCI Exhaust Steam                                          

D) CRD Minimum Flow Line                                   

                                        

Definition
B) Hot water circulated through a heat exchanger.
Term

The Reactor Core Isolation Cooling (RCIC) pump suction line from the Condensate Storage Tanks (CSTs) is isolated at the CSTs for a weld repair. With the RCIC suction line isolated what other system flow paths would also be isolated from the CSTs?

 

Definition
Both Core Spray systems alternate suction paths from the CST's.
Term
There is a precaution in OI-537 "Condensate/Demin Service Water" which states "only one Condensate Service pump 1P012A[B] or Condensate Jockey pump 1P-11 should be running at any one time during normal system operation". What is the reason for this precaution?
Definition
Due to increased likelihood of pump failure and maintenance problems.
Term

Condensate pump bearings are cooled and lubricated by which of the following?

 

 

            A) RBCCW                                         

              B)GSW                                                

            C) Condensate from the pump discharge

            D) Discharge of the SPE Condenser via a Pressure Regulating Station

Definition
C       The pump bearings are lubricated and cooled by the condensate being pumped.
Term

The plant is in a normal configuration at full rated power. What is the source of sealing water to 'B' Condensate pump?

 

A) GSW

B) condensate pump discharge

C) discharge of the SPE condenser via a pressure regulating station

D) There is no supply of seal water because the pumps are self-sealing

Definition

D

 

 Seal water is supplied from the discharge of the SPE condenser via a pressure regulating station.

The pumps are self-sealing; therefore, seal water is only valved in to non-running pumps.

Term

What provides cooling for the Condensate Pump lubricating oil and air/water heat exchanger?

 

A) GSW

B) Condensate Pump Discharge

C) discharge of the SPE condenser via a pressure regulating station

D) RBCCW

Definition

A

 

The GSW System provides cooling for the lubricating oil and an air/water heat exchanger

Term

Which of the following describes the flowpath from the Main Condenser to the Reactor Vessel?

A) M/C --> Condensate Pump --> Drain Cooler --> LPFH 1E1A/B-1E5A/B--> Feed Pump --> LPFH 1E6B -->FRV

B) M/C --> Condensate Pump --> Drain Cooler --> LPFH 1E1A/B-1E5A/B--> Feed Pump --> FRV -->1E6B

C) M/C --> Feed Pump --> Drain Cooler --> LPFH 1E1A/B-1E5A/B--> Condensate Pump --> FRV -->1E6B

D) M/C --> Condensate Pump --> Drain Cooler --> LPFH 1E1A/B-1E5A/B--> FRV --> Feed Pump  -->1E6B

Definition
B) M/C --> Condensate Pump --> Drain Cooler --> LPFH 1E1A/B-1E5A/B--> Feed Pump --> FRV -->1E6B
Term
The hotwell level controlling reject valve (CV-1490B) and  makeup valve (CV‑1490A) fail which way upon a loss of air?
Definition
Both valves fail closed on loss of Control Signal
Term
Which pump must be started first, the feed pump or the condensate pump?
Definition

   The feed pump control circuitry is interlocked with the condensate pumps.

1)        This interlock prevents starting a feed pump unless a condensate pump is already running.

2)        This interlock will also prevent starting a second feed pump unless both condensate pumps are running.

3)        Additional contacts prevent starting a feed pump unless lube oil pressure is greater than 9 psig.

Term

The RFP aux lube oil pump is running. What is a possible reason for it running?

A) The pump started at 10# header pressure and will run until pressure has been maintained at 10# for 30 mins.

B) The pump started at 7 psig and will remain running until secured by an operator.

C) The pump started at 7 psig and will run until pressure has been maintained above 7 psig for at least 5 secs.

D) The pump is normally running and should be logged as normal.

Definition

B

1)        When operated in AUTO, the auxiliary pump starts when lube oil pressure falls below 7 psig to augment the shaft driven lube oil pump.

2)        When the auxiliary lube oil pump is energized, a seal-in contact keeps the pump running until the handswitch is taken to stop.

 

On loss of 1Y11 or 1Y21, the respective RFP bypass (CV‑1569 or CV‑1611) will fail open to protect the RFP.

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