Survival practice in the mooring system is to slack off the tensions on the leeward side and（）.

单项选择题Steering a motor lifeboat broadside to the sea could cause it to（）.

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

单项选择题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

单项选择题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

单项选择题Seasickness is caused by rolling or rocking motions which affect fluids in the（）.

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

单项选择题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