Fire Protection Flashcards
For which of the following structures is there no fire extinguishing system?
Fire extinguishing is provided for: APU, engines, baggage compartments, lavatory.
Each engine has how many fire detection loops?
Three per engine and 1 in the APU.
How does an engine fire loop detect a fire?
Helium expands, the pressure increase triggers a switch.
How many fire extinguishing bottles are installed in the wing root?
Two.
T or F: the fire extinguishing bottles for the engines can be discharged into either engine’s nacelle.
True.
Which of the following does NOT happen when an overheat condition occurs in an engine nacelle?
This does happen: master warning, related PULL/FUEL/HYD OFF t-handle illuminates, both engine fire press to reset lights illuminate, CHECK FIRE DET warning light illuminates, fire aural tone sounds.
What may be pressed to silence the fire aural tone sounds in the flight deck?
Either flashing ENGINE FIRE PRESS TO RESET light.
How long will the engine t-handle lights be illuminated during an engine fire?
Until the fire is extinguished.
Which of the following does NOT happen when pilots pull the FUEL/HYD OFF t-handle?
This does happen: closes emergency fuel shutoff valve, closes emergency hydraulic shutoff valve, arms forward and aft bottles.
Which of the following might have happened if the engine fire bottle ARM light does not illuminate?
The bottle has not been armed due to a loss of pressure or squib malfunction.
How do pilots discharge an engine fire bottle after it has been armed?
The spring loaded EXTG switch.
How many times a day are pilots required to check the engine fire detection system?
Once.
When pilots hold the test switch for the fire system to the #2 engine side, what indications illuminate?
2 PULL FUEL/HYD OFF t-handle, master warning, CHECK FIRE DET, both ENGINE FIRE PRESS TO RESET lights, FAULT A/B lights.
T or F: pressing the ENGINE FIRE PRESS TO RESET button silences the warning tone and the flashing warning lights.
True.
Which of the following statements best describes the APU’s fire detection and extinguishing systems?
They are fully automatic.
T or F: the fire bottle for the APU can be used to put out fires in the engine nacelles.
False.
Which of the following is NOT a component of the APU fire extinguishing system?
These are components: fire extinguisher bottle and distribution tubing, fire detection loop sensor, control circuit.
When a fire or overheat condition is sensed by the detection loop in the APU, which of the following does NOT illuminate?
Answer will likely be something about baggage.
These do: FIRE light, MASTER WARNING, CHECK FIRE DET, BTL ARM, APU FUEL VALVE CLOSED, EXTG, MASTER CAUTION, APU CAUTION.
After the APU shuts down, how long does it take for the fire extinguishing bottle to be discharged?
Seven seconds.
What happens when an APU fire is detected?
APU automatically shuts down and the fire bottle discharges after 7 seconds.
Which of the following is NOT true for confirming the fire bottle was discharged for the APU?
This is true: BTL LOW light will illuminate.
T or F: if the APU fire extinguishing bottle does not automatically discharge, there is nothing else the pilots can do to discharge it.
False, there is an EXTG switch for the APU.
T or F: if the pilots test the APU fire extinguishing system while the APU is running, it will shut down completely.
True.
How many total smoke detectors are there in the forward baggage compartment?
One.
How many smoke detectors are there in the aft baggage compartment?
Two.
Which of the following does NOT happen when smoke is detected in the baggage compartments?
This does happen: SMOKE warning light, BAGGAGE AFT - SMOKE/EXTG light, FIRE BOTTLE AFT - ARM light, MASTER WARNING light, triple chime sounds, inlet/outlet vent valve closes.
T or F: the vent inlet and outlet for the aft baggage compartment will illuminate when they are closed after detecting a fire in the baggage compartment.
True.
How many total fire extinguishers are there for the aircraft’s baggage compartments?
Three (one forward, two aft).
How many of each type of fire extinguisher are there for the aircraft’s baggage compartments?
Two high rate, one low rate.
Which baggage compartment(s) can the low rate bottle be discharged to?
Either forward or aft.
If the high rate fire extinguisher has been deployed for an AFT baggage compartment fire, how long after that will the low rate bottle deploy?
7 minutes.
T or F: there is no way to test the forward and aft baggage compartment smoke detectors.
True.
T or F: there is an indication for lavatory smoke in the flight deck.
False.
T or F: the lavatory alarm can only be cancelled on the smoke detector unit itself.
True.
What does the fire extinguishing agent specifically protect in the lavatory?
The waste bin.
How many hand held fire extinguishers are located in the flight deck?
One.
Which of the following is not an engine one monitored by a fire detection loop?
Tail pipe zone.
How many fire extinguishing bottles are installed for engine fire extinguishing?
Two.
Which of the following statements regarding the APU fire bottle is most accurate?
It automatically discharges 7 seconds after the fire detection.
What does pushing the forward cargo area SMOKE/EXTG switchlight accomplish?
Discharges the high rate bottle and discharges the LW bottle.
Which of the following is a cockpit indication of smoke in the lavatory?
There is none.
