单项选择题

Which of the following must be eliminated to prevent accidents?（）

A.Unsafe actions
B.Orderliness
C.Frequent inspections
D.Good work habit

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Which of the following is not a recommended safe practi...

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A.Securing equipment against slipping or drifting
B.Operating machinery at its recommended speed
C.Repairing loose handles on tools before using
D.Using tools for purpose for which they are not designed

When required to work where there may be explosive gase...

单项选择题When required to work where there may be explosive gases, you should use tools which are （）

A.approved by the Coast Guard
B.high carbon steel
C.fixed with a ferrous cover
D.nonsparking

Prior to entering a cargo pump room, you should ensure ...

单项选择题Prior to entering a cargo pump room, you should ensure that （）.

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D.the oily water separator is de-energized

船舶电气与船舶安全

Which of the following must be eliminated to prevent accidents?（）