A.Dacron
B.Nylon
C.Esterlene
D.Polypropylene
您可能感兴趣的试卷
你可能感兴趣的试题
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
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
A.Add ballast in the afterpeak
B.Add ballast forward
C.Alter course
D.Reduce speed
A.Static electricity
B.An open and running motor
C.Loose wiring
D.All of the above
A.In the rig safety manual
B.On the Certificate of Inspection
C.On the Ship Station License
D.On the rig Watch Bill
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
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
A.getting
B.to get
C.to have got
D.for getting
A.at
B.in
C.on
D.over
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
最新试题
Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?()
Where would you find the call sign or call letters of the radio station on your ship?()
Smoking in bed on a ship is prohibited().
The ship is now down()head.
I hope you don’t mind()the radar for us in a short time.
Which statement is TRUE concerning radiotelephones on board towing vessels?()
Keep clear()the buoy.
In battery charging rooms,ventilation should be provided().
The winch at Hatch No.3 is()trouble.
Should the vessel have no deratisation certificate at the time of her delivery,she()be held to be unseaworthy.