单项选择题

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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单项选择题

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

单项选择题

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

单项选择题

A.I am altering my course to starboard
B.I am altering my course to port
C.I am operating astern propulsion
D.I am operating ahead propulsion