超星 - Lesson 13 过关检测：词汇与结构 - 查题吧

单选题

It is _____ in mechanical free-fall mechanism that forces the landing gear to fall.

A. facility
B. activity
C. gravity
D. variety

单选题

In the event of failure of only one landing gear _____ , the pilot may choose to retract all the gear.

A. brake
B. leg
C. crank
D. tire

单选题

A belly landing needs to be _____ when pilots fail to extend the landing gear.

A. performed
B. perforated
C. perfumed
D. perfected

单选题

When the airplane _____ the ground during landings, its vertical speed is instantly reduced to zero.

A. contracts
B. contrasts
C. contacts
D. contains

单选题

The purpose of pneumatic tires and shock absorbing landing gears is to _____the impact when the airplane touches the runway.

A. fasten
B. loosen
C. fashion
D. cushion

单选题

The load _____ at the moment of touchdown may easily be three or four times the actual weight of the airplane.

A. proposed
B. imposed
C. supposed
D. exposed

单选题

Flight diversion can be the result of _____ weather conditions, a system malfunction, or poor preflight planning.

A. nonpredicted
B. impredicted
C. unpredicted
D. inpredicted

单选题

To complete all plotting, measuring, and computations involved before diverting to the alternate may only _____an actual emergency.

A. increase
B. strengthen
C. reinforce
D. aggravate

单选题

The _____ reduces the approach rate of descent to a more acceptable rate for touchdown.

A. flare
B. landing
C. approach
D. descending

单选题

In aviation, a _____ is a landing maneuver in which a significant component of the prevailing wind is perpendicular to the runway center line.

A. crash landing
B. flapless landing
C. belly landing
D. crosswind landing

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