單項(xiàng)選擇題Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is().

A.list
B.heel
C.trim
D.flotation


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2.單項(xiàng)選擇題For safety reasons,when assistance towing().

A.the disabled vessel should be towed to the nearest port
B.the disabled vessel should be inspected for flammable gases
C.passengers should always be removed from the disabled vessel
D.personnel on the disabled vessel should don PFD's

3.單項(xiàng)選擇題For pumping the bilges,a 54 foot long “T-Boat”,which is not a ferry,but is certificated to carry 30 passengers,must be fitted with at least().

A.one fixed power pump and one portable hand pump
B.one fixed hand pump and one portable hand pump
C.two portable hand pumps
D.either "A" or "B"

4.單項(xiàng)選擇題For optimum stability during jacking operations,mat ballast tanks or spud cans should be().

A.empty
B.fully ballasted
C.partially ballasted
D.sealed

5.單項(xiàng)選擇題For means of abandonment of a ship,which type of embarkation does not require prior approval by the Coast Guard?()

A.Movable ladders
B.Fixed ladders
C.Safety booms
D.Elevators