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单选题 词汇与结构_______ aircraft designed for high-speed operation have difficulty generating enough lift at the low speeds during takeoff
学科：高级英语口语
时间：2024-10-01 10:05:45
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题目1单选题
词汇与结构Takeoff is the phase of flight in which an aircraft goes through a ______ from moving along the ground (taxiing) to flying in the air, usually starting on a runwayA. transferB. transitionC. translationD. transmission
题目2单选题
词汇与结构Large transport category (airliner) aircraft may use a ______ power for takeoff, where less than full power is applied in order to prolong engine life, reduce maintenance costs and reduce noise emissionsA. reducedB. fullC. increasedD. low
题目3单选题
词汇与结构In some emergency cases, the power used can then be increased to increase the aircraft's _________A. performanceB. powerC. efficiencyD. capacity
题目4单选题
词汇与结构Before takeoff, the engines, particularly piston engines, are routinely run up at high power to check for ________ problemsA. fuselage-relatedB. system-relatedC. engine-relatedD. piston-related
题目5单选题
The term ____is used because the aircraft pivots around the axis of its main landing gear while still on the ground, usually due to manipulation of the flight controls to make this change in aircraft attitudeA. airborneB. rotationC. rollD. takeoff
题目6单选题
词汇与结构For most aircraft, attempting a takeoff without a pitch-up would require ________ speeds while still on the runwayA. takeoffB. cruiseC. taxiD. approach
题目7单选题
词汇与结构_______ aircraft designed for high-speed operation have difficulty generating enough lift at the low speeds during takeoffA. Fixed-wingB. Rotary wingC. TricycleD. Single-engine
题目8单选题
词汇与结构These are therefore fitted with high-lift devices, often including slats and usually flaps, which increase the ____of the wing, making it more effective at low speed, thus creating more liftA. areaB. camberC. liftD. weight
题目9单选题
词汇与结构A _______ will reduce the ground speed needed for takeoff, as there is a greater flow of air over the wingsA. windshearB. downwindC. headwindD. microburst
题目10单选题
词汇与结构For a given aircraft, the takeoff speed is usually directly____ to the aircraft weight; the heavier the weight, the greater the speed neededA. sameB. addictiveC. proportionalD. opposite
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