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單項(xiàng)選擇題

Which may ignite fuel vapors?（）

A.Static electricity
B.An open and running motor
C.Loose wiring
D.All of the above

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單項(xiàng)選擇題

Where would you find the call sign or call letters of the radio station on your ship?（）

A.In the rig safety manual
B.On the Certificate of Inspection
C.On the Ship Station License
D.On the rig Watch Bill

單項(xiàng)選擇題

To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.

A.weight of cable to weight of vessel
B.weight of cable to weight of anchor
C.length of anchor to depth of water
D.length of cable to depth of water

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