ATA 26,49

The cargo compartment smoke detectors are monitored by. CIDS-SDF. Cargo FDU. Ventilation Controller.

Which component controls and monitors the APU?. Fuel Metering Unit (FMU). Inlet Guide Vanes (IGV). Electronic Control Box (ECB).

Before the APU starter is energized. The APU air intake flap must be fully open. The APU bleed switch must be deselected. Both APU fuel pumps must be selected on.

How many halon Fire Extinguishing Cylinders are per Engine?. Each engine has two fire extinguishers bottles. Each engine has one fire extinguisher bottle. Each engine has it's own dedicated fire extinguisher and has the capability to share the other engine's cylinder.

Fire protection for FWD, AFT and Bulk cargo compartments includes. Two Fire Bottles, which can be discharged to any compartment. Two Fire Bottles, one for the FWD and one shared by the AFT and Bulk. One Extinguisher Bottle for the AFT compartment only and one for FWD compartment only.

APU fire on ground. The Automatic Fire Extinguishing Control Unit (AFECU) starts the extinguishing sequence. The Electronic Control Box (ECB) starts the extinguishing sequence. The APU FIRE P/B is released out automatically and extinguishing bottle is discharged.

Fuel muscle pressure is used to. Fuel flows to the combustion chamber through 12 fuel nozzles. Operate the Fuel Metering Valve (FMV). Operate the Surge Control Valve actuator & Load Compressor IGV actuator.

The only component of the oil system controlled by the ECB is. Low oil press switch. Thermal bypass valve. De-oiling solenoid valve.

The APU fuel Low Pressure Valve opens when. The APU Master Switch is set to ON. The APU Start pushbutton is pressed. The batteries are set to ON.

The APU START sequence begins when. The APU Master switch is ON. The APU Start pushbutton is ON. The APU BAT pushbutton is ON.

The Fire Detection Unit (FDU) sends fire and fault signal to. Flight Warning Computers (FWC). Electronic Engine Control (EEC). Smoke Detection Function (CIDS – SDF).

The extinguishing agent from bottle 2. Release immediately in 2 minutes. Released in approximately 240 minutes, through the FMS. Release in AFT & Bulk cargo compartment only.

In reference of the fire extinguishing bottles. All bottles can be discharged when the aircraft is de-energized. Both left bottles can be used if the right engine has a fire. APU and Engine bottles squib A are connected to the hot battery bus.

Two Smoke Detectors are installed in the air extraction duct of the avionics ventilation system. True. False.

A/C in flight: Main Deck Cargo Compartment (MDCC) smoke warning. Fire extinguishing is done by the main deck fire bottles system. Fire extinguishing is done manually, through the portable fire bottles. Fire extinguishing is done by depressurization of the main deck and isolation of the compartment.

To prevent an APU load compressor surge. The ECB controls the torque motor of the surge control valve to open. The ECB controls the bleed valve to open. The ECB adjusts the IGVs actuator solenoid.

Is used to store information regarding the health monitoring and life usage of the APU. Data Memory Module (DMM). Electronic Control Box (ECB). Flight Warning Computer (FWC).

The APU provides for automatic fire extinguishing. On the ground and in flight. On the ground only. Only when selected to automatic by ground personnel.

The cargo compartments (LDCCs) are protected against fire with. Smoke detection only. Smoke detection and fire extinguishing. Fire detection and smoke extinguishing.

The Combustion Chamber design is. Reverse Flow Annular design. Direct Flow Annular design. Continuos Flow Annular design.