单项选择题

On a vessel，the keel is the primary strength member of the lower hull form in which direction?（）.

A.transverse
B.diagonal
C.longitudinal
D.vertical

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单项选择题

On a bulk chemical carrier，water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called（）.

A.acrylic acid
B.benzene
C.oleum
D.vinyl toluene

单项选择题

Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all（）.

A.fire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stations
B.interior fire stations
C.engine room fire stations
D.all of the above

单项选择题

Most very large ocean going vessels，such as bulk carriers and large tankers，tend to squat（）.

A.by the bow
B.by the stern
C.at the end nearest the bottom
D.evenly fore and aft