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The fire extinguishers are powered by BATT DIR BUS 1 and BATT DIR BUS 2.

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A minimum of two smoke detectors in the related cargo compartment must detect smoke before there is a fire alarm.

Correct! Wrong!

When a main landing gear overheat is detected:

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If an APU fire is detected during ground operations, the Fire Detection Extinguishing (FIDEX) system control unit immediately shuts down the APU, the external APU horn sounds, and _____ later the APU fire-extinguishing bottle discharges automatically.

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The Auxiliary Power Unit (APU) fire protection system has two fire extinguishing bottles.

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The Auxiliary Power Unit (APU) fire protection system includes dual fire detection loops, EICAS and aural alerting, and one APU fire-extinguishing bottle.

Engine Fire Protection - When the AVAIL (Available) light is on and the BTL switch is pressed, halon gas is discharged into the engine compartment. While the halon bottle discharges, the AVAIL light goes off and the amber light on the BTL switch comes on. The amber light bar also comes on when:

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Cargo compartment fire protection - When pressed, either guarded FIRE switch sends a signal to:

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Engine fire extinguishing - There are two engine fire-extinguishing bottles in _____. Both bottles can be used for either engine.

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Fire suppression in the cargo compartments is supplied by:

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Cargo compartment smoke detection - There are _____ Class C smoke detectors in each of the cargo compartments, forward and aft.

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The central component of the Fire Detection Extinguishing (FIDEX) system is a dual-channel control unit Channel A is powered by the:

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The lavatory is equipped with a floor-mounted smoke detector monitored by the Fire Detection Extinguishing (FIDEX) system control unit, and a waste bin fire extinguisher.

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The lavatory is equipped with a ceiling-mounted smoke detector monitored by the FIDEX control unit, and a waste bin fire extinguisher.

Engine Fire Protection - The green AVAIL lights on the BTL1 and BTL2 switches come on when the associated L ENG FIRE or R ENG FIRE switch is pressed. This indicates that the fire-extinguishing bottles are available.

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This indicates that the fire-extinguishing bottles are 'armed' (not available).

The main landing gear fire detection system has:

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The engine Fire Detection Extinguishing (FIDEX) system has dual fire detection loops, which are temperature-sensitive elements installed:

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The engine fire protection system includes:

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There are two smoke detectors installed side by side in the mix manifold bay. They detect smoke that could enter the cabin from the equipment bays.

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The lavatory fire-extinguisher system is used to extinguish a fire or source of heat in the lavatory waste bin. The bottle is installed under the sink area with the discharge tubes pointing into the waste bin. The extinguisher discharges when the nozzles reach a temperature of:

Correct! Wrong!

Airbus A220 – Fire and Overheat Protection