keep the propeller from being fouled
increase propeller speed
help calm the waves in the vicinity of the craft
increase the holding power of the sea anchor
第1题：
The sprinkler system of an enclosed lifeboat is used to ______.
A.cool the craft in a fire
B.cool the engine
C.spray oil on the sea to calm it
D.spray personnel during a fire
第2题：
Oil slick caused by spillage of oil from tanker ship is ______.
A.a drop of oil
B.the emulsion of oil at sea surface
C.the weathered oil
D.the oil floating on the surface of the sea water
第3题：
________is the most visible signal of distress from a lifeboat at sea in the daytime.
A.Smoke signal
B.Flash signal
C.Fire signal
D.Radio emergency transmission
第4题：
change from heavy fuel oil to diesel oil for mail engine
pumping oil bilge water
change sea chest form high level one to lower one
test emergency generator
第5题：
After abandoning ship, you should deploy the sea anchor from a life raft to ______.
A.keep the life raft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location
第6题：
What is placed on the underside of an inflatable liferaft to help prevent it from being skidded by the wind or overturned?
A.Ballast bags
B.A keel
C.Strikes
D.Sea anchor
第7题：
The lifeboat releasing gear lever should be marked with the words ______．
A.DANGER，DO NOT TOUCH
B.DANGER，BOAT MAY DROP
C.DANGER，LEVER RELEASES BOAT
D.DANGER，LEVER DROPS BOAT
第8题：
In good weather，you should deploy the sea anchor from the liferaft to ______.
A.keep the liferaft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location
第9题：
a boat bucket
an air tank filled with water
an oar and canvas weighted down
All of the above
第10题：
keep the propeller from being fouled
increase propeller speed
help calm the waves in the vicinity of the craft
increase the holding power of the sea anchor