P 5to mdlo 30

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

2.- Which components provides electric heat connections to the flight deck window?. Two window heat protection units (WHPU). Common core system (CCS). One window heat protection unit (WHPU).

3.- 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. .

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

5.- The main composite material used in the B787 structure is: CFRP (Carbon fiber reinforced plastic ). .

6.-When both water pumps operate at same time?. During a system drain operation. .

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

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

9.- 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. .

10.- How many cabin air compressors (CAC) are there?. Four, Two in each pack. Two; one in each pack. One in LH pack only.

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

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

13.- 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 use the FWD left passenger entry door only. They use the doors access to the FWD EE compartment and then go out of the airplane.

14.-How many channels does the valve control unit (VCU) have?. Two channels. .

15.-How many loops does the PECS have?. Two loops; left and right. .

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

17.- How many sections does the air cycles machine have?. Three sections: compressor T1 and T2 turbines. Two sections; turbine and compressor. Three sections; fan, compressor and turbine.

18.- Are the outflow valve (OFV) interchangeable between 787-8 and 787-9?. No, they are not. Yes, they are. They are Interchangeable depending on the line number.

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

20.- Where is the ODS controller located?. Aft cargo compartment. Left main landing gear. FWD E/E bay.

21.- The air cycle machine bypass valve (ABV) is used for. Pack outlet temperature control. .

22.- How many seconds take to warm the ultraviolet water treatment unit?. 80 seconds. The system does not delay. 40 seconds.

23.-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. .

24.- In relation to air conditioned ground connection, the 787-9 has: Two connections, one on each pack. in 787-9 its not necessary gnd connections. a single connection.

25.- The emergency power assist system (EPAS) safety switch is used to: Deactivate the system during maintenance. .

26.- The passenger oxygen is obtained from: Small high-pressure cylinder in each PSU. A pair of large cylinders for the whole cabin. Oxygen generators in each PSU.

27.- Which one of these units provides CAC operation efficiency?. The variable diffuser. .

28.- 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 lavatories and galley only and send it to FWD outflow valve. Take air from crown fuselage are and send it to compact mixer.

29.- 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, one to valve control unit (VCU) and one to manual input. Three motors, one for onside VCU, the second for the offside VCU and the the third one to manual input from flight deck.

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