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

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


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1.單項(xiàng)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

2.單項(xiàng)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

3.單項(xiàng)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

4.單項(xiàng)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

5.單項(xiàng)選擇題The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?（）

A.The boat should be hoisted a few inches clear of the cradle before cranking out the davits
B.The inboard gripes should be cast off before the outboard gripes
C.The outboard section of the cradle must be released
D.The tricing pendants will automatically bring the boat alongside at the embarkation deck