海船船员适任证书三管轮模拟试题3(轮机英语)

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  • 卷面总分:100分
  • 试卷类型:模拟考试
  • 测试费用:免费
  • 答案解析:是
  • 练习次数:2次
  • 作答时间:180分钟
试卷简介

海船船员适任证书三管轮模拟试题3(轮机英语),本试卷是为考船舶三管轮专业考试的考生准备的轮机英语试题及答案练习。

  • 单项选择题
试卷预览
5

When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be .

  • A.disengaging the clutch firstly, then stopping the main engine
  • B.stopping the main engine firstly, then disengaging the clutch
  • C.stopping the cooling water pump firstly, then stopping the main engine
  • D.stopping the main engine and disengaging the clutch at the same time
5

In using reduction gears to obtain efficient propeller speeds, _____.

  • A.they must be located at the after end of the engine
  • B.they can only be used with one engine at a time
  • C.they eliminate the need for controllable pitch propellers
  • D.they are connected to the engine with a flexible coupling
5

The feed water to the boiler will comprise _____.

  • A.condensate
  • B.a small amount of make-up feed
  • C.A and B
  • D.None of the above
5

Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?

  • A.Increased viscosity of the product needs higher loading pressure, which increases the chances of a spill
  • B.Air pockets may cause the fuel to bubble out of the ullage hole
  • C.The temperature rise of the fuel will cause an overflow
  • D.Fueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened
5

Which of the following terms would best describe the temperature at which a liquid boils at a given pressure? .

  • A.Degree of saturation
  • B.Saturation temperature
  • C.Superheated temperature
  • D.Degree of superheat
5

Which one of the following is not generally recognized as one constitute of bilge water? .

  • A.Oil leaking from tanks inside engine room
  • B.Engine room cleaning water
  • C.Water leaking from the separator sludge tank
  • D.Sewage
5

When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear, the _____.

  • A.ram relief valves bypass oil to stop rudder movement
  • B.six-way valve shifts to the neutral flow position
  • C.steering pump electric motor is de - energized by the transfer switch
  • D.follow-up gear takes the hydraulic pump off stroke
5

If a centrifugal pump vibrates and is noisy when operating, the cause could be _____.

  • A.worn gland sealing shaft
  • B.worn wearing rings
  • C.a bent shaft
  • D.reversed pump coupling