A: These control surfaces are hydraulically supplied and are only extended or retracted during take off and landing.
B: These control surfaces are hydraulically moved and are only extended or retracted during take off and landing.
C: These control surfaces are hydraulically powered and are only extended or retracted during take off and landing.
举一反三
- 词汇与结构 The roll control surfaces consist of hydraulically powered ailerons and flight spoilers which are controlled by _________ either control wheel.
- 词汇与结构 If the jam exists during the landing phase, higher forces are required to generate sufficient elevator control to _________ for landing.
- A belly landing or gear-up landing is when an aircraft lands without its landing gear fully ------------. A: extend B: extended C: retract D: retracted
- An overloaded aircraft may bring damage to the structure of the landing gear during the phase of landing.
- If the landing gear is ____, the pilots are supposed to advise the cabin crew to perform emergency landing procedures and to brief passengers on evacuation procedures. A: retracted B: extended C: congested D: jammed
内容
- 0
If a forced landing is necessary, set the remote switch to the position before landing. A: ARM B: ON C: OFF
- 1
Lesson 16 听力选择-1[音频] A: The flaps is jammed B: The undercarriage is jammed C: The nose gear cannot be extended D: The landing gear cannot retracted
- 2
词汇与结构 In case of landing with a retracted nose-wheel, the pilot should hold the nose off the ground until almost ________ has been applied.
- 3
The landing gear, or undercarriage, supports the airplane when it is ________ on the ground or in water and during the takeoff and landing. A: flying B: steering C: taxiing D: resting
- 4
An airport is a transportation center used for the landing and _______ of aircraft, and it provides transportation both for people and freight. A: taking off B: taken off C: takeoff D: take off