单项选择题Limit switches().

A.control the descent rate of a lifeboat
B.control the ascent rate of a lifeboat
C.cut off power to the winch when the lifeboat nears the final stowed position
D.cut off power to the winch when the lifeboat reaches the davit bumpers


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1.单项选择题Lifeboat hatchets should be().

A.kept in a locker
B.secured at each end of the boat with a lanyard
C.kept next to the boat coxswain
D.kept in the emergency locker on the ship and brought to the lifeboat when needed

3.单项选择题In rough weather,when a ship is able to maneuver,it is best to launch a lifeboat().

A.on the lee side
B.on the windward side
C.with the wind dead ahead
D.with the wind from astern

4.单项选择题In painting a lifeboat following its overhaul,which parts must be painted bright red?()

A.the top 2-1/2 inches of each side
B.the releasing gear lever
C.the fuel tanks
D.the thwarts

6.单项选择题If the survival craft is not loaded to full capacity,the personnel should be().

A.loaded more on the port side forward
B.loaded equally on both sides with more forward
C.loaded equally on both sides with more aft
D.allowed to sit anywhere

7.单项选择题If help has not arrived in 10-12 hours after you abandon a vessel in a survival craft,you should().

A.go in one direction until the fuel runs out
B.plot a course for the nearest land
C.take a vote on which direction you should go
D.shut down the engine(s) and set the sea anchor

8.单项选择题For use as protection from gas leaking from a refrigeration unit,each ship must be equipped with a().

A.portable ventilation system
B.flame safety lamp
C.self-contained breathing apparatus
D.gas mask

9.单项选择题For small,first-degree burns the quickest method to relieve pain is to().

A.immerse the burn in cold water
B.administer aspirin
C.apply petroleum jelly
D.apply a bandage to exclude air

10.单项选择题Drinking salt water will().

A.be safe if mixed with fresh water
B.prevent seasickness
C.dehydrate you
D.protect against heat cramps