单项选择题

The stevedores have already stowed the porcelain ware（）up to the deckhead.

A.loosely
B.closely
C.heavily
D.strongly

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单项选择题

The process of lowering a boom to a horizontal position and onto its deck support is called（）.

A.spotting a boom
B.collaring a boom
C.cradling a boom
D.toppling a boom

单项选择题

The minimum length of a boat painter for a lifeboat in ocean service is（）.

A.60 fathoms
B.the distance from the main deck to the light waterline
C.twice the distance from the main deck to the light waterline or 50 feet whichever is greater
D.two times the distance from the boat deck to the light waterline or 50 feet whichever is greater

单项选择题

The margin plate is the（）.

A.outboard strake of plating on each side of an innerbottom
B.outer strake of plating on each side of the main deck of a vessel
C.plate which sits atop the center vertical keel
D.uppermost continuous strake of plating on the shell of a vessel