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

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单项选择题

The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the（）.

A.Headlog
B.Towhead
C.Collision bulkhead
D.Bullnose

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

单项选择题

The primary barrier of a bulk carrier is formed by（）.

A.the single skin side shell and the inner bottom
B.deck strips，hatch covers and coamings
C.the vertically corrugated transverse watertight bulkheads
D.the single skin side shell between topside and hopper tanks，and the cross deck strips，hatch covers and coamings