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单选题 Which of the following is NOT a main working feature of container quay cranes
学科：默认课程
时间：2025-08-04 23:49:57
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题目1单选题
Which of the following equipment is one of the early forms of port lifting machineryA. Well sweepB. Electric hoistC. Truck craneD. Crawler crane
题目2单选题
Which of the following describes the main characteristics of modern winches compared with traditional windlassesA. Still rely on human power for drivingB. Use wooden drums and ropesC. Added reducers and pulley blocks to improve efficiencyD. Mainly used for agricultural irrigation
题目3单选题
Which of the following lifting machinery does not belong to the category of bridge cranesA. Gantry craneB. Overhead craneC. Cantilever craneD. Mobile crane
题目4单选题
In ancient well sweeps, which part plays the role of a fulcrumA. RopeB. Water - lifting containerC. Tree trunkD. Big stone
题目5单选题
Which of the following is NOT a main purpose of port hoisting machineryA. Loading and unloading ship cargoB. Stacking and transferringC. Container operationsD. Ship manufacturing
题目6单选题
Which of the following is usually included in a working cycle of port hoisting machineryA. Lifting goods, transporting goods, unloading goods, returning to the original positionB. Only lifting goodsC. Only unloading goodsD. No fixed process
题目7单选题
Which of the following is NOT a working characteristic of port hoisting machineryA. High efficiencyB. Large load capacityC. Static natureD. Adaptability
题目8单选题
Which of the following is NOT a main working feature of container quay cranesA. High efficiencyB. Large spanC. AutomationD. Static nature
题目9单选题
Which of the following is NOT a main working feature of rubber - tyred gantry cranes (RTG)A. FlexibilityB. Energy conservation and environmental protectionC. Space savingD. Continuous operation
题目10单选题
Which kind of cargo are bridge - type grab ship unloaders mainly used for unloadingA. ContainersB. General cargoC. Bulk cargo (such as coal, ore)D. Liquid cargo
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