A、The priority valves give priority to the heavy load users.
B、The priority valves give priority to the essential systems.
C、The priority valves modulate the pressure to the users.
答案：B
A、The priority valves give priority to the heavy load users.
B、The priority valves give priority to the essential systems.
C、The priority valves modulate the pressure to the users.
答案：B
A. With avionics bay ambient air
B. With air coming directly from the pack outlet
C. With cabin ambient air
A. To stop the flow in case of leakage.
B. To shut off the return lines.
C. To separate the Normal form the Alternate Servovalves.
A. Disables all DEUs.
B. Affects only type B DEUs.
C. Only affects the type A DEUs behind the crack on this bus.
A. An ARINC 429 highspeed switched bus.
B. An ARINC 429 lowspeed unswitched bus.
C. An RS 422 bus.
A. Management functions and flight envelope protection
B. Rudder control and flight envelope protection
C. Guidance functions and rudder control
A. The cut-out and vent valves operate .
B. The safety and cut-out valves operate .
C. The safety and vent valves operate .
A. To be connected in parallel.
B. To be supplied by any generator or external power.
C. To be supplied by APU GEN or EXT PWR only.
A. The distance from the engine.
B. The distance from the engine, the power setting and the time exposure.
C. The distance from the engine and the power setting.
A. A brake release order is given to the wheels of the same gear.
B. A brake release order is given to the related wheel.
C. A brake release order is given to all wheels.
A. The control handle gearbox.
B. The safety pin
C. The liting mechanism.
