單項選擇題Handholds or straps on the underside of an inflatable liferaft are provided（）.

A.to right the raft if it capsizes
B.to carry the raft around on deck
C.for crewmen to hang on to
D.to hang the raft for drying


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1.單項選擇題Halon fire extinguishers are NOT effective when used on which types of fires?（）

A.Fires in electrical equipment
B.Flammable oils and greases
C.Class "A" fires in ordinary combustibles
D.Materials containing their own oxygen

2.單項選擇題Guide tolerances during elevation of the jack-up rig will（）.

A.reduce spud can bearing pressure
B.keep the unit level and reduce overloading
C.reduce stresses on the hull
D.minimize the potential for punch-through

3.單項選擇題Great Salt Pond on Block Island is（）.

A.entered through a dredged cut
B.not accessible in easterly gales
C.available for vessels up to a maximum draft of 8 feet (2.4m)
D.not affected by the tide

4.單項選擇題Good seamanship while towing in heavy weather requires all of the following EXCEPT（）.

A.reducing speed to reduce surging on the towline
B.lashing down or stowing all loose gear
C.dogging all hatches and watertight doors
D.streaming all of your towing hawser