题目内容

按照工艺要求，在进行()大修时，首先要切断总电源，做好预防性安全措施。

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变压器和互感器的中性点接地属于保护接地。（)

新《准则》要求的“四个必须”是什么？

Shipboard Oil Pollution Emergency Plan shall be carried on board by ______．

A. Oil tanker
Bulk carrier of 400 gross tonnage and above
Container vessel
D. Passenger ship

Fires of which class would most likely occur in the engine room of a vessel ________．

A. Classes A and B
B. Classes B and C
Classes C and D
D. Classes A and D