单项选择题Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?()

A.Crossing the spring lines
B.Slacking all forward running lines while keeping all after running lines taut
C.Doubling up on spring or breast lines
D.Slacking bow and stern lines


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1.单项选择题Which method is used to detect rot in manila lines?()

A.Feeling the surface of the line for broken fibers
B.Measuring the reduction in circumference of the line
C.Observing for the appearance of mildew on the outer surface
D.Opening the strands and examining the inner fibers

2.单项选择题Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?()

A.Add ballast in the afterpeak
B.Add ballast forward
C.Alter course
D.Reduce speed

3.单项选择题Which may ignite fuel vapors?()

A.Static electricity
B.An open and running motor
C.Loose wiring
D.All of the above

4.单项选择题Where would you find the call sign or call letters of the radio station on your ship?()

A.In the rig safety manual
B.On the Certificate of Inspection
C.On the Ship Station License
D.On the rig Watch Bill

5.单项选择题To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of().

A.weight of cable to weight of vessel
B.weight of cable to weight of anchor
C.length of anchor to depth of water
D.length of cable to depth of water

6.单项选择题Three SHORT BLASTS mean().

A.I am altering my course to starboard
B.I am altering my course to port
C.I am operating astern propulsion
D.I am operating ahead propulsion

7.单项选择题The winch is liable()worn-out in this way.

A.getting
B.to get
C.to have got
D.for getting

8.单项选择题The winch at Hatch No.3 is()trouble.

A.at
B.in
C.on
D.over

9.单项选择题The term PROLONGED BLAST refers to().

A.a blast of from five to seven seconds' duration
B.a blast of from five to six seconds' duration
C.a blast of from four to six seconds' duration
D.a blast of from six to seven seconds' duration

10.单项选择题The ship will be()demurrage soon.

A.at
B.for
C.in
D.on