单项选择题

The Tonnage Certificate indicates（）.

A.deadweight tons
B.displacement tons
C.net tons
D.gross tons

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单项选择题

The term strake is used in reference to（）.

A.rudder mountings
B.anchor gear
C.hull plating
D.vessel framing

单项选择题

The strake on each side of the keel is called a（）.

A.sheer strake
B.gatewood strake
C.insulation strake
D.garboard strake

单项选择题

The riding pawl is（）.

A.a safety interlock in a cargo winch that prevents the runner from overspeeding
B.a stopper that prevents the anchor cable from running free if the cable jumps the wildcat
C.the device that locks the deck lashings of the Peck and Hale system
D.the lug that rides on the eccentric rib and engages the locking ring on the windlass