A.existing visibility conditions，limited only by the curvature of the Earth
B.perfect visibility conditions，limited only by the curvature of the Earth
C.existing visibility conditions，limited only by the intensity of the light
D.perfect visibility conditions，limited only by interference from background lighting
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A.hauling in on the anchor line as you would any anchor
B.getting all hands to assist
C.its trip line
D.cutting the line，as you cannot haul it back in
A.litmus paper
B.a combustible gas indicator
C.an oxygen breathing apparatus
D.an oxygen indicator
A.that the vessel is anchored
B.to request the draw span of a bridge to be opened
C.of distress
D.that the vessel is broken down and drifting
A.have someone standing by
B.make sure there is sufficient air within the locker
C.de-energize the windlass
D.All of the above
A.of
B.to
C.for
D.on
最新試題
Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）
Which method is used to detect rot in manila lines?（）
Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）
Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.
Which tool is used to open the strands of fiber lines when making an eye splice?（）
Which term describes a part of a natural fiber line?（）
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
The winch is liable（）worn-out in this way.
The winch at Hatch No.3 is（）trouble.
Which statement is TRUE concerning radiotelephones on board towing vessels?（）