todo estara bien

the APU DE-PRIME valve is open during. low oll pressure conditions. high oil temperature. cold start & shutdown.

where is the hyd control unit (HCU) located ?. Rh half thrust reverser C duct. left aft pylon fairing. on the gearbox.

during APU battery start, the APU uses. the left ASG. both ASG. the right ASG.

What functions can you do from the refuel control panel(RCP)?. refueling only. balancing and refueling only. refueling, defueling and transfer.

where are the variable stator vane (VSV) actuators located ?. on the intermediate pressure compressor case. on the high pressure compressor case. on the intermediate pressure turbine case.

the EEC has: two control channels and one protection channel. two control channels and two protection channels. one control channel and two protection channels.

how do you know if, in the fan cowl, the telescopinng hold open rod is locked correctly?. a status message is displayed on EICAS. it shows a red band visible. it shows a yellow band visible.

the expanded fuel indications are displayed in EICAS if. airplane is on air and the balance sw is off. fuel imbalance is less than 200 lbs. airplane is on ground and both engine shutdown.

the low rate discharge (LRD) bottles are used to: suppress re-ignition of a fire until the airplane lands. back-up high rate discharge (HRD) bottles. extinguish the cargo fire quickly.

to perform the cargo smoke detector test, it is necessary. DC busses powered only. either of AC or DC busses powered. AC and DC busses powered.

the thrust reverser test enable sw is used to: energize the EEC during ground operation. deploy and stow the thrust reverser (T/R) when the engine is not in operation. operate the thrust reverser (T/R) during landing operation.

how does the EEC detect if a low pressure shaft (N1) breakage has occurred?. detecting an un-commanded N1 deceleration. detecting a difference between low turbine speed and low compressor speed. detecting a difference between high compressor speed and low compressor speed.

the engine section (ESS) anti-ice system prevents. ice on and around the iintermediate pressure(IP) compressor inlet. over pressure in the inlet cowl. ice at the inlet cone.

the APU controller can be powered by?. the external power selector. the APU selector sw only. the APU selector sw and MISC SYSTEM CTRLS page.

the bus power control unit (BPCU) sends a request to the APU controller to do an auto start if: the auto start function is armed and one variable frequency starter generator (VFSG) is on-line. the auto start function is armed and two variable frequency starter generator (VFSG) are on-line. the auto start function is armed and one variable frequency starter generator (VFSG) is off-line.

where does the nitrogen generation system (NGS) take the air from?. from external ram air. from cabin air. from pneumatic air.

the FUEL BALANCE sub-system: moves unusable fuel from center tanks. distributes fuel between center and main tanks. distributes fuel evenly in main tanks.

during battery power refueling procedure: only center tank can be refueled. all fuel tanks can be refueled. only left main tank can be refueled.

the APU controller sends a close signal to APU air inlet door if : the remote shutdown sw in the P40 is pushed. the APU selector sw is in off position only. APU RPM is less then 15%.

where is the 160 engine air station located?. inlet to LP turbine. outside of HP compressor. exit from FAN (secondary air).

in the jettison system, the fuel to remain selector lets: flight management computers (FMC) select the amount of remaining fuel. manually selects the amount of fuel remaining after jettison is completed. manually selects which fuel tank will be drained.

how many dual element temperature sensors does the wheel well fire detection (WWFDS)have?. three in both wheel well. six in each wheel well. four in each wheel well.

the 787-9 fuel has: vent stringers. vent lines. is not vented.

the purpose of the nitrogen generation system (NGS) is: add nitrogen to the fuel tanks to improve combustion. to add nitrogen enrich air to the fuel tank, and reduce the posibilities of fuel tanks explosion. to improve the quality of the air for passanger comfort.

the fuel quantity data concentrator (FQDC). is a function hosted in the CCS. convents analog / digital signals and send data to the CCS. controls fuel vlv and pump operation.

which precaution do you need to take if you replace a fuel sray nozzle (FSN)?. distribution weights need to be moved from old FSN to new FSN. identify the blue or silver labels. distribution weights need be discarded every time.

how many loops are necessary to detect APU during ground operations?. always both loop signals are necessary. fire signal from one of the two loops and both engines OFF. APU fire detection is inhibited on ground.

the thrust malfunction control accommodation (TCMA) is an automatic software protection to: reduce fuel flow during cruise, thereby reduce fuel burned during flight. shut down the engine during uncontrollable over-thrust on ground. prevent high vibration during N1 or N2 shaft breakage.

the APU is in the ATTENDED mode when: the airplane is in the AIR. the APU is running at 95% of speed. the airplane is on the GROUND with both engines shut-down.

the fuel pump has: one low pressure and two high pressure pump. two high pressure pump only. one low pressure and high pressure pumps.

how many turbine gas temperature (TGT) thermocouples does the rolls royce trent 1000 have ?. twelve TGT thermocouples. six TGT thermocouples. eight TGT thermocouples.

which loads or force does the aft mount transfer?. vertical, side and torsion. vertical, side, torsion and thrust. torsion and thrust only.

the main function of squib monitor control unit (SMCU) is to: monitor all smoke detectors from forward and aft cargo compartment. provide discharge power to all cargo compartment fire extinguishing squibs. communicate with the propulsion fire protection system (PFPS) function.

the fuel scavenge pump and fuel scavenge isolation vlv work together to: remove fuel from main tanks. remove all fuel from center tank. drain fuel from surge tank, during overfill operation.

how many igniters are used by the EEC for in flight engine start?one. one igniter during firts attempt and both two igniters for others attempts. one igniter only. both two igniters.

which fuel acces panels are high impact panels?. the outboard of the enigine strut panels. the surge tank panels. the inboard of the engine strut panels.

the high pressure compressor (N3) consists of: six stages axial flow. eight stages axial flow. four stages axial flow.

the fuel shutoff module is used to: supply electrical power to the boost pumps during RAT operations. provide back-up power by storing energy to close the engine and APU fuel shutoff valves. supply back-up power to fuel quantity management system during ground maintenance operations.

APU automatic fire extinguishing occurs if. fire is detected in attended or unattended modes. fire is detected in unattended modes only. fire is detected in attended modes only.

on the boing 787, the auxiliary power unit provides: electrical power only. pneumatic power. electrical and pneumatic power.