单项选择题

The nozzle of a gasoline hose or can should be kept（）.

A.in contact with the fill opening to guard against static spark
B.from making contact with the fill opening to guard against static spark
C.in contact with the fill opening to allow proper venting
D.None of the above

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热门试题

单项选择题The dangerous cargo manifest does NOT indicate（）.

A.the stowage location of hazardous material aboard the vessel
B.a description of the packaging
C.UN identification numbers
D.the net weight of each hazardous cargo

单项选择题The case for Dangerous Goods in question was badly crushed and was returned to dock shed and （）.

A.shorlanded
B.shortshipped
C.shortdischareged
D.shortoperated

单项选择题The Captain ordered the dangerous cargo on deck（）to lighten the ship and minimize the risk at sea.

A.be jettisoned
B.be dropped
C.be dived
D.be abandoned

单项选择题The air cylinder bottles in the survival craft should be refilled with（）.

A.oxygen
B.nitrogen
C.compressed air
D.nitrogen and oxygen

单项选择题The (auto)ignition temperature is that temperature atwhich（）.

A.no spark or flame is required to ignite gas or vapor
B.a fuel begins to give off explosive vapors
C.a fuel if ignited will continue to burn
D.a 1% mixture of the fuel with air will explode