單項(xiàng)選擇題

A deadhead is a (n)（）.

A.tree or long awash in a nearly vertical position
B.crew member who refuses to work
C.upstream end of a load wall
D.buoy that is adrift

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單項(xiàng)選擇題

A disk with a horizontal line through its center, equivalent to the summer load line, is called the（）.

A.deadrise mark
B.maximum alloable draft mark
C.pilmsoll mark
D.tonnage mark

單項(xiàng)選擇題

A fire starting by spontaneous combustion can be expected in which condition?（）.

A.Paints, varnish, or other liquid flammables are stowed in a dry stores locker
B.Inert cargoes such as pig iron are loaded in a wet condition
C.Oily rags are stowed in a metal pail
D.Clean mattresses are stored in contact with an electric light bulb