單項選擇題The terms ceiling and margin plate are associated with the（）.

A.crew's quarters
B.engine room
C.main deck
D.tank top


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1.單項選擇題The stevedores have already stowed the porcelain ware（）up to the deckhead.

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

2.單項選擇題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

3.單項選擇題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

4.單項選擇題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

5.單項選擇題The main advantage and chief characteristic of a Steulchen boom is that it can be（）.

A.operated by one winchman
B.cradled on deck
C.swung from one hatch to the adjacent hatch
D.collared to the mast