單項(xiàng)選擇題Drinking salt water will （）

A.be safe if mixed with fresh water
B.prevent seasickness
C.promote urine excretion
D.protect against heat cramps


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1.單項(xiàng)選擇題Immediately after abandoning a vessel, lookouts should be posted aboard liferafts to look for（）

A.survivors in the water
B.food and water
C.land
D.bad weather

2.單項(xiàng)選擇題When administering artificial respiration to an adult, the breathing cycle should be repeated about （）

A.12 to 15 times per minute
B.18 to 20 times per minute
C.20 to 25 times per minute
D.as fast as possible

3.單項(xiàng)選擇題When administering artificial respiration, it is of the utmost important to （）

A.use the mouth-to-mouth method
B.clear airways
C.use rhythmic pressure method
D.know all approved methods

4.單項(xiàng)選擇題Safety is dependent on orderliness and cleanlinessOrder may be maintained by （）

A.storing all items in an assigned place
B.storing all items in a common storage container except those ready-for-sea
C.tagging all items according to their age and then storing them together
D.disposing of worn-out items

5.單項(xiàng)選擇題To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?（）

A.Keep a load on the hoist until all personnel are finished working
B.Set the load on a movable dolly when transportation may be needed
C.Have one man keep a hand on the load to steady it
D.Insure that the lifting gear capacity is not exceeded