更多"[单选题]When APU supplies air for air-"的相关试题:
[单选题]Do not use ____ when APU supplies bleed air to avoid bleed system damage.
A. LP ground unit
B. HP ground unit
C. engine bleed
[单选题]The ____ supplies the APU.
A. left fuel feed line
B. right fuel feed line
C. centre fuel feed line
[单选题]When APU running, APU FUEL PUMP starts ____.
A. if the tank pressure is not available
B. all time
C. if the APU FUEL PUMP is ON
[单选题]When using APU bleed, air conditioning unit flow is automatically selected in：
A. high-order position
B. normal position
C. low position
[单选题]When engine and APU work, APU bleed valve is selected ON, which of the following is correct?：
A. Engine bleed valve is closed, X bleed valve is closed, and APU bleed valve is open
B. Engine bleed valve is open, X bleed valve is on, and APU bleed valve is closed.
C. Engine bleed valve is closed, X bleed valve is open and APU bleed valve is open.
[单选题]When RAM AIR is at ON position, when use automatic control operation and differential pressure is lower than 1 psi, the outflow valve is to
A.100%
B.80%
C.50%
[单选题]When did APU N becomes amber on the ECAM?
A. N ≥99%
B. N ≥102%
C. N ≥107%
[单选题]When will air inlet bypass valve of skin exchange open?
A. In open-circuit configuration
B. In the forms of open-circuit or intermediate configuration, and air flow is higher than the required value
C. When external temperature of avionics bay is above 35℃（95℉）。
[单选题]In flight, when ram air turbine deploys automatically:
A. Blue system is pressurized but emergency engine does not work
B. Green system is pressurized and emergency engine works
C. Blue system is pressurized and emergency engine works
[单选题]To the AIR COND, If the APU is supplying, pack controllers select ____ automatically, independent of the selector position.
A. LO flow
B. NORM flow
C. HI flow
[单选题]APU will automatic shutdown when ____ rotor speed displayed on ECAM.
A.100%
B.105%
C.107%
[单选题]APU START pb-sw “AVAIL” light on when：
A. APU inlet flap opened
B. APU N is above 99.5 % or 2 s after N reaches 95 %.
C. APU was used. contactor closed
[单选题]When does ram air turbine deploy automatically?
A. When AC BUS 1 and AC BUS 2 are both lost and the speed is greater than 100kt
B. When blue pump does not work
C. When blue system is under low pressure (lower than 1750psi)
[单选题]若当APU在运转时按压APU火警测试电门，APU将:
A.关车
B.保持运转
C.提供气源
[单选题]APU维护面板上的测试按钮在测试APU时,APU必须在:
A.在ON 位
B.在OFF 位
C.均可
[单选题]ADR (Air Data Reference) can supplies:
A. A. Barometric altitude, airspeed, mach, angle of attack, temperature
B. B. Overspeed warnings
C. C. Both correct
[单选题]如果APU可用且APU引气电门在ON位，则APU BLEED以_色显示?
A.蓝
B.绿
C.白
[单选题]APU转速大于_ 时，按压顶版上的APU BLEED钮后APU引气供给气源系统。
A.大于85%
B.大于90%
C.大于95%
[单选题]在APU运转期间APU最大EGT恒定
A.正确
B.不正确
