單項(xiàng)選擇題

Kapok life jackets should not be（）.

A.stowed near open flame or where smoking is permitted
B.used as seats, pillows, or foot rests
C.left on open decks
D.All of the above

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單項(xiàng)選擇題

Keeping the draft at or below the load line mark will insure that the vesselhas adequate（）.

A.ballast
B.reserve buoyancy
C.displacement
D.rolling periods

單項(xiàng)選擇題

Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed space, such as in the pumproom, provided that the（）.

A.persons in the space wear gas masks
B.persons in the space wear damp cloths over their mouths and nostrils
C.ventilation system is secured and all persons leave the space
D.ventilation system is kept operating

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Kapok life jackets should not be（）.

你可能感興趣的試題

Keeping the draft at or below the load line mark will insure that the vesselhas adequate（）.

Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed space, such as in the pumproom, provided that the（）.

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