B787 exam5

In B787-8 the alternate ventilation system (AVS) uses: AVS inlet door and this is flush and opens into the fuselaje. CAC inlet door and this is flush and opens. ISS inlet door and this is flush and opens into the fuselaje.

Which components provides electric heat connections to the flight deck window?. Two window heat protection units (WHPU). Three window heat protection units (WHPU). One window heat protection units (WHPU).

When the oxygen masks fall from the PSUs. When does the oxygen start to flow?. When the breath sensor senses that a person breathes through the mask. When the cabin sensor senses that a person breathes. When the breath sensor senses that a person breathes free.

Related to Electrical Dimmable Window: It can be controlled by the window or the cabin attendant panel. It can be controlled by the window only. It can be controlled by} the cabin attendant panel only.

The main composite material used in the B787 structure is: CFRP (Carbon fiber reinforced plastic ). Plastic. Fiber glass.

When both water pumps operate at same time?. During a system drain operation. the waste tank operation. When the system fail.

The low limit valve (LLV) is used to. Prevent ice in the condenser. Prevent water in the condenser. Prevent air in the condenser.

The wing ice protection system (WIPS) uses: Electro-thermal heater mats. Hot air. Heaters.

Where can you electrically adjust the cap or F/O seat from?. From two electrical control switch, one under a cover behind The head rest and one located on the inboard side of the seat. From one electrical control switch, two under a cover behind The head rest and one located on the inboard side of the seat. From three electrical control switch, one under a cover behind The head rest and one located on the inboard side of the seat.

How many cabin air compressors (CAC) are there?. Four, Two in each pack. Six , Three in each pack. Two, one in each pack.

When can you operate de cargo doors?. When airplane is on ground and engines are not running. When airplane is on ground. When airplane is on ground and engines are idle or not running.

The bleed air for the Rolls Royce Trent 1000 engine anti-ice system comes from: The high pressure compressor, stage 3. The low pressure compressor, stage 2. The intermediate pressure compressor, stage 3.

How can the flight crew members get out of the airplane during emergency conditions?. They can use the emergency escape descent devices near the Flight deck overhead. They can use the emergency slide doors. They can use the emergency windows.

How many channels does the valve control unit (VCU) have?. Two channels. One channel. Three channels.

How many loops does the PECS have?. Two loops; left and righ. Three loops; left righ and center. one loop.

The B787 has liquid cooling system in: Power electronics cooling system (PECS) and integrated cooling system (ICS). Power electronics cooling system (PECS). integrated cooling system (ICS).

How many sections does the air cycles machine have?. Three sections: compressor T1 and T2 turbines. Two sections: compressor T1 and T2 turbines. One sections: compressor T1 and T2 compressor.

Are the outflow valve (OFV) interchangeable between 787-8 and 787-9?. No, they are not. yes, they are. yes if its the same valve.

On the passenger entry doors, the purpose of the EPAS system is. It operates in emergency opening, with the mode selector in armed position. It operates opening, with the mode selector in armed position. It operates in emergency opening, with the mode selector in ON position.

Where is the ODS controller located?. Aft cargo compartment. Fwd cargo compartment. Bulk cargo.

The air cycle machine bypass valve (ABV) is used for. Pack outlet temperature control. Rise the temperature control. Pack intlet temperature control.

How many seconds take to warm the ultraviolet water treatment unit?. 80 seconds. 60 seconds. 30 seconds.

How many locking lugs do the passenger seat fitting have?. The FWD passenger seat fitting has one locking lug and the AFT has two locking lugs. The AFT passenger seat fitting has one locking lug and the AFT has two locking lugs. The FWD passenger seat fitting has three locking lug and the AFT has one locking lugs.

In relation to air conditioned ground connection, the 787-9 has: Two connections, one on each pack. one connection LH pack. one connection RH pack.

The emergency power assist system (EPAS) safety switch is used to: Deactivate the system during maintenance. Activate the system during maintenance. Stand by the system during maintenance.

The passenger oxygen is obtained from: Small high-pressure cylinder in each PSU. High-pressure ambient airflow. Cabine supply airflow.

Which one of these units provides CAC operation efficiency?. The variable diffuser. Valve control unit (VCU. The outflow valve (OFV).

The lavatory/galley ventilation system is used to: Take air from lavatories, galley and crew rests and send it to the AFT outflow valve. Take air from FWD or AFT drain mast and then overboard. Take air from potable water service.

The outflow valve (OFV) has: Three motors, two for each channel of one valve control unit (VCU) and the third one to manual input from flight deck. Two motors, two for each channel. Four motors, two for each channel of one valve control unit (VCU) and two to manual input from flight deck.

The cabin air compressor deflector door has: Three positions, close partially and fully deployed controlled by one actuator only. Two positions, close partially and fully deployed. One positions, close partially and fully deployed controlled.