單項(xiàng)選擇題It is sometimes necessary to moor bow and stern to two mooring buoys in order to（）.

A.avoid any swing in a restricted space
B.prevent to touch with other vessels
C.make a convenience of cargo discharging


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1.單項(xiàng)選擇題It would be possible that part of the cargo got（）as great change in the weather during the voyage caused heavy（）in the hold.

A.damp/water
B.dampness/sweater
C.wet/condensation
D.wetness/dew

2.單項(xiàng)選擇題Jettisoning weight from topside（）.

A.return the vesselto an even keel
B.reduces free surface effect
C.lowers the center of gravity
D.raises the center of buoyancy

3.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

4.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

5.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