A.be safe if mixed with fresh water
B.prevent seasickness
C.dehydrate you
D.protect against heat cramps
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A.acids or alkalies
B.diesel oil
C.acids,but not alkalies
D.alkalies,but not acids
A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten-minute intervals
A.directly under the boom
B.moving away from the boom
C.stopped dead in the water
D.tied to the boom
A.hoist man
B.limit switch
C.brake handle
D.preventer bar
A.is
B.is to be
C.will be
D.being
A.with puncture wounds
B.when all other means have failed
C.when the victim is unconscious
D.to prevent bleeding from minor wounds
A.the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
B.operation of the release lever until the boat is waterborne
C.the falls from rehooking after they have been released
D.accidental unhooking when the falls become slack
A.be painted bright red
B.be secured to a permanent part of the lifeboat structure
C.have the area surrounding the lever painted white
D.All of the above
A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center
A.for the saving of life
B.for fire-fighting
C.for mooring purpose
D.for towing purpose
最新试题
The depth over a shallow patch,()about 1.5 miles southeastward of Nanshan Tou lighthouse,reduces to 8 meters.
The Master or person in charge of a ship shall insure that each deck from which lifeboats are launched is().
The bottom row of plating next to the keel of a lifeboat is known as the().
Number 3 lifeboat would be().
The maximum speed of lowering for a lifeboat on gravity davits is controlled by the().
In painting a lifeboat following its overhaul,which parts must be painted bright red?()
The danger associated with using carbon dioxide in an enclosed space is().
The minimum amount of lifesaving equipment required aboard an 85-foot uninspected towing vessel consists of().
Seawater may be used for drinking().
Symptoms of sea sickness include().