航海英语救助作业用语章节练习(2018.01.31)

单项选择题
What is the lifesaving signal for You are seen -assistance will be given as soon as possible?（）
A.3 white star signals
B.Horizontal motion with a white flag
C.Vertical motion of a white light
D.Code letter K by blinker light
单项选择题
The litter on a ship must be able to（）.
A.carry at least two injured persons
B.float for at least two hours
C.be used on the types of helicopters serving the unit
D.All of the above
单项选择题
It is good practice to use long towlines for ocean tows because the（）.
A.wear on the towline is equalized
B.weight of the towline increases the towing force
C.dip in the towline absorbs shock loads
D.danger of overriding is reduced
单项选择题
The head of the bend is the（）.
A.top or upstream beginning of a bend
B.bottom or downstream beginning of a bend
C.midpoint or center radius of a bend
D.center line or apex of a bend
单项选择题
The hoist line primarily used for lifting personnel on ship cranes is called the（）.
A.personnel line
B.whip line
C.main hoist line
D.pendant
单项选择题
If you shorten the scope of anchor cable，your anchor’s holding power（）.
A.decreases
B.increases
C.remains the same
D.has no relation to the scope
单项选择题
In a storm，the windward lines of a ship’s mooring system provide（）.
A.a positive righting moment
B.an increase in KM
C.a negative restoring force
D.a positive restoring force
单项选择题
If you wear extra clothing when entering the water after abandoning ship it will（）.
A.weigh you down
B.preserve body heat
C.reduce your body heat
D.make it more difficult to breathe
单项选择题
If the named port is one at which no tugs are ever obtainable，and the chartered vessel can not，by reason of her size，reach that port without the assistance of tugs，the port is（）.
A.safe
B.not safe
C.good
D.not good
单项选择题
In heavy seas the helmsman should steer the survival craft（）.
A.into the seas
B.broadside to the seas
C.in the same direction as the seas
D.in a series of figure-eights