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单选题 The function of a hydraulic motor in hydraulic system is to convert ________ energy into ________ energy
学科：船舶电子电气专业英语2
时间：2025-12-27 00:44:33
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题目1单选题
Which of the following electric motors would be the safest and most reliable to use on the main desk of a vessel in foul weather conditionsA. Drip proof motorsB. Watertight motorsC. Sealed motorsD. Enclosed motors
题目2单选题
The 3-phase squirrel cage motors are widely used in ________A. hydraulic drive systemB. electronic drive systemC. pneumatic drive systemD. electric drive system
题目3单选题
In AC adjustable-speed drives, the ______ converts the AC input power to DC voltageA. inverterB. induction motorC. converterD. control logic
题目4单选题
In a deck crane,a ______ motor is used for rotating the craneA. mooringB. hoistingC. slewingD. luffing
题目5单选题
The deck machine used for dropping and weighing anchor is called the ______A. windlassB. anchor craneC. anchor davitD. mooring winch
题目6单选题
The function of a hydraulic motor in hydraulic system is to convert ________ energy into ________ energyA. electrical; mechanicalB. hydraulic; mechanicalC. electrical; hydraulicD. mechanical; hydraulic
题目7单选题
The structure of ______ motor is simple but its start-up and speed regulation is not goodA. step typeB. squirrel cage typeC. wound rotor typeD. synchronous type
题目8单选题
Which of the following equipment is not deck machineryA. RudderB. WindlassC. HatchD. Mooring winch
题目9单选题
There are three motors in a deck crane, and the ______ motor is used for raising and lowering the loadA. slewingB. mooringC. hoistingD. luffing
题目10单选题
The driving power of the steering gear onboard a modern large vessel is usually _____A. hydraulic powerB. wind powerC. man powerD. electric power
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