A.Hard rubber
B.Canvas
C.Leather
D.Sponge rubber
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A.at the lowest point
B.near the batteries
C.at the highest point
D.only when charging is in progress
A.take part
B.watch
C.go to their quarters
D.stay out of the way and do what they want
A.obliged
B.obliging
C.oblige
D.being obliged
A.repair
B.repaired
C.repairing
D.to repair
A.good getting ground
B.good holding ground
C.good grabbing ground
D.good handling ground
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
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
最新试题
Keep clear（）the buoy.
Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）
Smoking in bed on a ship is prohibited（）.
In order to prevent galvanic corrosion，an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?（）
The ship is not very stable，please（）when making a turn.
The ship will be（）demurrage soon.
Which may ignite fuel vapors?（）
In the International Code of signals，a group of three letters indicates（）.
To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.
Which tool is used to open the strands of fiber lines when making an eye splice?（）