超星 - 词汇学习三 - 查题吧

单选题

In the event of a control column jam, an override mechanism allows the control columns to be physically separated. _________ force against the jam will breakout either the Captain’s or First Officer’s control column.

A. Pressing
B. Delivering
C. Selecting
D. Applying

单选题

If the spoiler system is jammed, force applied to the Captain’s control wheel provides roll control from the ailerons. The spoilers and the First Officer’s control wheel are _________.

A. serviceable
B. unserviceable
C. inserviceable
D. servicing

单选题

Hydraulic shutoff valves can be used to _________ each aileron, as well as the elevators and rudder, from related hydraulic system pressure.

A. isolate
B. engage
C. deflect
D. command

单选题

The roll control surfaces consist of hydraulically powered ailerons and flight spoilers which are controlled by _________ either control wheel.

A. Pulling
B. dialing
C. rolling
D. rotating

单选题

Either hydraulic system A or B can operate all primary flight controls. Ailerons and elevators can be operated _________ if required.

A. manually
B. electrically
C. hydraulically
D. automatically

单选题

The pitch control surfaces consist of hydraulically powered elevators and an electrically powered _________.

A. yaw damper
B. stabilizer
C. spoiler
D. actuator

单选题

The main PCU consists of two _________ input rods, two individual control valves, and two separate actuators: one for hydraulic system A and one for hydraulic system B.

A. similar
B. identical
C. dependent
D. independent

单选题

With total hydraulic power failure, the ailerons can be mechanically positioned by rotating the pilot’s control wheels. Control forces are higher due to friction and _________ loads.

A. aerodynamic
B. stable
C. mechanical
D. structural

单选题

The flaps and _________ are high lift devices that increase wing lift and decrease stall speed during takeoff, low speed maneuvering and landing.

A. elevators
B. rudder
C. ailerons
D. slats

单选题

To prevent excessive structural loads from increased Mach at higher altitude, flap _________ above 20,000 feet should not be attempted.

A. deflection
B. extension
C. retraction
D. modification

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