2025 CQ Questions Flashcards
Which areas of the aircraft have fire extinguishing capability?
The engines, APU, and cargo
What fire protection functions are available without battery power?
The main wheel well and lower cargo compartments have fire detection without the battery but require AC power
Can you discharge the fire bottles using only battery power?
Yes, you can discharge the fire bottles using only battery power because it uses the hot battery bus for engines a few and lower cargo compartments and that is all the fire extinguishing that exists
How is the fire warning be silenced?
By pressing either the fire worn lights or pushing the bell cut out switch on the fire protection panel
How is an engine fire extinguished?
by discharging either fire bottle left or right by pulling and turning the fire engine fire switch on the side of that bottle which uses the squibs to discharge that bottle into the engine. The fire extinguisher bottle contains halo with a nitrogen precharge located in the left main wheel well
which systems are affected by pulling an engine fire switch and how are they affected?
The engine fuel shut off valve and spark fuel, shut off valve, the engine, bleed air valve and on side packed valve the associated hydraulic fluid shut off valve, the generator control relay and breaker the thrust reverser for the related engine and it arms one discharge squib on each engine, fire extinguisher bottle and allows. The engine fire switched to be rotated for discharge
How is a dual loop failure of an engine fire detection system indicated?
FAULT light
how many fire extinguisher bottles are provided for the APU?
One
Does the APU have automatic fire extinguishing?
No, it is only manual
What happens when pulling the APU fire switch?
It closes the APU fuel shut off valve, the APU bleed air valve, the APU air inlet door, the APU generator control relay and breaker the APU fire switch can then be rotated for discharge and it arms, the AP fire extinguisher bottle squib
where is the APU fire ground control panel located?
In the right main wheel well
What does placing the fire detection test switch to “FAULT/INOP” test?
It tests the systems ability to detect a fault or an operative equipment within itself.
You should see the FAULT / APU DET INOP lights when the system test is working properly
what does placing the fire detection test switched to OVHT/FIRE test?
It tests, the overheat and fire detection loops on both engines the fire loop on the APU and the fire detector in the wheel well.
What is indicated by the illumination of the “detector fault” light in the cargo fire panel?
The illumination of the detector fault light indicates one or more detectors in the selected detection loops in either cargo compartment has failed
what fire protection and extinguishing equipment is available in the lower cargo compartments?
two halo fire suppression bottles, a high rate discharge bottle and a low rate discharge bottle when the discharge switch is pressed the high rate discharge bottle discharges into the selected compartment and a 15 minute timer, begins at the end of the 15 minutes. The low rate discharge bottle is released automatically into the selected compartmentfor 180 minutes this week sequence provides 195 minutes of fire suppression.
how is fueling accomplished?
single point pressure fueling station located on the right wing
What does an IMBAL alert on the fuel quantity indicator indicate?
Main tank fuel quantities deferred by greater than 1000 pounds for 60 seconds
what does the LOW alert on the fuel quantity indicator indicate?
Below 2000 lbs fuel on a main tank
What does a CONFIG alert on the fuel quantity indicator indicate?
misconfiguration of the fuel system boost pumps
1600 lbs or more fuel in the center tank with both center tank boost pumps OFF and engine running
What does INSUFFICIENT FUEL on the fuel quantity indicator indicate?
FMC fuel predicted to be less than 2000lbs
