A.swinging
B.dredging her anchor
C.taking bearings of the lights
D.taking distances of the lights
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A.pilot ladder
B.rope ladder
C.rod ladder
D.accommodation ladder
A.great circle
B.small circle
C.large circle
D.general circle
A.anchor using both anchors
B.anchor with scope of 8 or more to 1
C.use a stern anchor
D.fit a crown strap and work wire to the anchor
A.identification
B.distinction
C.discrimination
D.clearly seeing
A.the same ratio
B.more chain for each fathom of depth
C.less chain for each fathom of depth
D.two anchors with the same ratio of chain
最新試題
You are entering port and have been instructed to anchor，as your berth is not yet available.You are on a SW’ly heading，preparing to drop anchor，when you observe the range lights as shown on your starboard beam.You should（）.
Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.
You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn.If you observe the buoy moving aft relative to you，what should you do（）.
Mariners should ensure correct（）of aids to navigation during twilight periods when some lighted aids to navigation are lit while others are not.
When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.