Pulling up the APU fire warning switch:
Trips the generator control relay, and generator breaker, arms the associated extinguisher and closes the bleed air valve, the fuel shutoff valve, and the APU inlet door.
The power source for Engine Fire Extinguishing is:
The Hot Battery Bus.
Some of the indications for an engine fire warning are MASTER CAUTION & OVHT/DET annunciator lights, the ENG OVERHEAT light, the Master FIRE WARN lights and the red fire switch light. What are the other indications?
The Fire Bell.
Pulling the engine fire warning switch up:
Closes both the engine fuel shutoff valve and the spar fuel shutoff valve.
Illumination of the APU DET INOP light will also cause the MASTER CAUTION and OVHT/DET annunciator lights to illuminate?
True.
Placing the TEST switch in the FAULT INOP position tests:
The fault detection circuits for both engines and the APU.
During normal operation as a dual loop system, with the OVHT DET switch in NORMAL,
an alert is initiated only if one of the detector elements in Loop A and one of the detector
elements in Loop B signal an overheat or fire condition.
True.
In case of APU fire the Recall Items are:
1 - APU FIRE WARNING SWITCH…… PULL ROTATE.
2 - APU SWITCH…………………………………………OFF 2.
If the OVHT DET switch is positioned to A or B, the system operates as a single loop
system. The non-selected loop is not monitored.
True.
During cargo fire TEST, Individual detector faults can only be detected by a manually
initiated test. The MASTER CAUTION light does not illuminate.
True.
Cargo Compartment Fire Extinguishing a single fire extinguisher bottle is installed in the air conditioning mix bay on the forward wing spar. Detection of fire in either the forward or aft compartment will cause the FWD or AFT cargo fire warning light to illuminate. The extinguisher is armed by pushing the appropriate cargo fire ARMED switch.
True.
In case of Cargo Fire, the Cargo Fire (FWD / AFT) Warning Lights are illuminated red.
At least one detector in each loop detects smoke (with power failed in one loop, at least one
detector on the remaining loop detects smoke)
If the DETECTOR FAULT light is illuminated (amber), a minimum of one loop in one or
both cargo compartments have failed.
False.
Main wheel well fire protection consists of fire detection powered by the:
No.1 AC Transfer bus.
A dual fire detector loop is installed in the main wheel well.
False.
Cargo compartement smoke detection is powered by:
DC bus 1 e DC bus 2
The lavatory smoke detection system monitors for the presence of smoke. When smoke is detected - an aural warning sounds and the red alarm indicator light on the lavatory smoke detector panel illuminates:
True.
After a wheel well fire, if the landing gear must be retracted for airplane performance, leave the landing gear extended for ___ minutes after the WHEEL WELL fire warning light has extinguished.
20 minutes.
During ‘SMOKE / FUMES REMOVAL’ procedure, First Officer’s window should be opened if packs are off and smoke / fumes source is confirmed to be in the flight deck.
True.
If smoke / fumes are uncontrollable, the crew is supposed to descent to the lowest safe altitude and at 14000 or below, the PRESSURIZATION MODE SELECTOR should be positioned to MAN while the OUTFLOW VALVE switch should be opened. What is the main cause of the OUTFLOW VALVE operation?
This causes the cabin airflow to carry smoke/fumes aft.
