轮机英语【二三管】题库

单选题 1分

In fighting a fire in a fuel tank , the FIRST action you should attempt is to ____

  • A. .secure all sources of fresh air to the tank
  • B. .begin transferring the fuel to other tanks
  • C. .top off the tank to force out all vapors
  • D. .station on someone at the fixed CO2 release control
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1 单选题 1分
Electrical leads and insulation on a motor should be painted with
  • A..heat-resisting acrylic(丙烯酸的)
  • B..heat-resisting aluminum
  • C..insulating varnish
  • D..insulating white lead
2 单选题 1分
Which of the following precautions must be taken electric impression heater is used to keep the coolant in a diesel engine during the time the engine is secured?
  • A. .the coolant temperature must be maintained at 180°c
  • B. .the thermostatic bypass valves must be manually opened before the engine is started
  • C. .the pressure cap must be removed while the ??
  • D. .electrical power to the heater must be secure
3 单选题 1分
If separating effect of the oily water separator is not good .we can improve it by ____
  • A. .flushing separator with cold water
  • B. .increasing bilge water supply flow
  • C. .heating oily water properly
  • D. .opening manual oil discharge valve
4 单选题 1分
Which problem can occur if the brake band lining of a wildcat brake becomes excessively worn?
  • A..the driving engine will over-speed
  • B..the anchor will immediately drop
  • C..the clutch will overheat
  • D..the brake’s effectiveness will be reduced
5 单选题 1分
Centrifugal separators can be arranged ____ to attain a higher throughput
  • A..in series
  • B..in parallel
  • C..independently
  • D..in series or parallel
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轮机英语【二三管】-题库

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