上机真题卷十一

卷面总分：100分
答题时间：100分钟
题量：76题
题型：单选题
试卷简介: 上机真题卷十一, 此试卷为参加"轮机英语【二三管】"的考生提供的"上机真题卷十一"的答案和解析。
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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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