题目内容

词汇与结构The pilot should then release ________ pressure in such a manner that the nose settles slowly to the surface.

A. front
B. middle
C. whole
D. back

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词汇与结构If the landing must be made with only the nose gear extended, the initial contact should be made on the aft fuselage structure with a nose-high attitude. This procedure will help prevent ________ problems.

A. rudder
B. column
C. wheel
D. thrust

词汇与结构Landing gear employing a rear-mounted wheel is called a _____ landing gear.

A. tricycle
B. conventional
C. main wheel
D. nosewheel

词汇与结构52. Tricycle landing gear permits better forward _____ for the pilot during takeoff, landing, and taxiing.

A. reliability
B. controllability
C. maneuverability
D. visibility

词汇与结构Moreover, it tends to prevent ground looping by providing more _____ stability during ground operation since the airplane’s center of gravity is forward of the main wheels.

A. directional
B. vertical
C. longitudinal
D. lateral