Fire Protection (FP)

Question 1

The class battery rooms are protected from fire by…
A. the carbon dioxide system.
B. a pre-action sprinkler system.
C. a deluge sprinkler system.
D. the halon system.

Answer 1

A - the carbon dioxide system. (CARDOX)

The Fire Protection - ** Carbon Dioxide** system provides fire protection for the following areas:
* ** Battery rooms A through D **
* ESF switchgear room (train A)
* ESF switchgear room (train B)

Question 2

The carbon dioxide odorant smells like…
A. rotten eggs.
B. wintergreen.
C. rubbing alcohol.
D. cherries.

Answer 2

B

A wintergreen odorant is added to
alert personnel that may enter the area after the CO2 discharge.

Question 3

Which of the following is NOT protected by the halon system?
A. Remote shutdown panels
B. 120’ control building inverter room
C. 140’ control building computer room
D. ESF switchgear rooms

Answer 3

D

Question 4

As fire main pressure drops, which pump will automatically start first?
A. ‘A’ diesel driven fire pump
B. ‘B’ diesel driven fire pump
C. Motor driven fire pump
D. Jockey fire pump

Answer 4

D

Question 5

Pre-action sprinklers use which of the following plant systems to perform their designed function?
A. Circulating water (CW)
B. Demineralized water (DW)
C. Service air (IA)
D. Service gas (GA)

Answer 5

C

Question 6

How may the fire pumps be operated from the control room?
A. All control rooms can start and stop the fire pumps.
B. Only Unit 1 control room can start and stop the fire pumps.
C. Only Unit 1 control room can start the fire pumps. Fire pumps cannot be stopped from any control room.
D. All control rooms have switches and indications for fire pumps, but they will not actually operate the pumps.

Answer 6

C

Question 7

What is required to reset the CO2

Answer 7

The Fire Protection - Carbon Dioxide system is reset by Fire Protection personnel after an
automatic or manual actuation. The procedure is performed at the Cardox control panels related to
the area in which the system discharged. HVAC is notified to replace the electro-thermal fusible
link assembly for all dampers in the HVAC system to the hazard area.

Question 8

How do you manually actuate the CO2 system?

Answer 8

Manual actuation of a CO2 flooding system is performed at the Manual Actuation Station near the
control panel for that room or space. To manually actuate, PULL DOWN on the WINDOW to OPEN
it to gain access the Black button, then DEPRESS the BLACK BUTTON to actuate the system.
The system will alarm and go into its pre-discharge timing sequence, and the discharge of CO2 will
occur about ONE MINUTE after the button is pushed.

Question 9

What are the capacities of the common unit fire pumps? What pressures will cause autostarts?

Answer 9

• Jockey pump:
  o Maintains ~110 psig
  o Auto starts at 104 psig
  o Supports 50 gpm firefighting demand
• Three 50% capacity fire pumps (1500 gpm each)
  o 95 psig - Motor driven Pump starts (10 sec TD)
  o 90 psig- A Diesel Pump starts (15 sec TD)
  o 85 psig- B Diesel Pump starts (20 sec TD)
  o Manual start HSs located in U1 MCR
• Max firefighting conditions: 3000 gpm at 125 psig

Question 10

What pressures will autostart the Fire Pumps?

Answer 10

• Jockey pump:
  o Maintains ~110 psig
  o Auto starts at 104 psig
  o Supports 50 gpm firefighting demand
• Three 50% capacity fire pumps (1500 gpm each)
  o95 psig - Motor driven Pump starts (10 sec TD)
  o 90 psig - A Diesel Pump starts (15 sec TD)
  o 85 psig - B Diesel Pump starts (20 sec TD)
  o Manual start HSs located in U1 MCR
• Max firefighting conditions: 3000 gpm at 125 psig