單項選擇題Steering a motor lifeboat broadside to the sea could cause it to（）.

A.capsize
B.run smoother
C.run faster
D.sink


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1.單項選擇題Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.

A.respiratory irritant
B.skin burning agent
C.blood poisoning agent
D.nerve paralyzing irritant

2.單項選擇題Separation cloths may be used to（）.

A.absorb moisture from hygroscopic cargoes
B.fill gaps between layers of cargo
C.wrap cargo that leaks from packaging
D.keep bagged cargo leakage from contacting the deck

3.單項選擇題Seasickness is caused by rolling or rocking motions which affect fluids in the（）.

A.stomach
B.lower intestines
C.inner ear
D.bladder

4.單項選擇題Releasing oil from the sea anchor of a lifeboat may（）.

A.keep the propeller from being fouled
B.increase propeller speed
C.help calm the waves in the vicinity of the craft
D.increase the holding power of the sea anchor

5.單項選擇題On a vessel，if someone fell overboard and you did not know over which side the person fell，you should（）.

A.immediately reverse the engines
B.stop the propellers from turning and throw a ring buoy over the side
C.increase speed to full to get the vessel away from the person
D.first put the rudder hard over in either direction