A.lower low water
B.high water
C.low water
D.sea level
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A.the height of the tide
B.depth of water under the bridge
C.charted vertical clearance at mean low water
D.distance from the water to low steel of the bridge
A.concealed
B.buried
C.existed
D.built
A.one nautical mile
B.two kilometers
C.5 cables only
D.one fathom
A.a vessel arrives at a port in a evening
B.a vessel leaves a port in a evening
C.a vessel arrives at a port in a morning
D.a vessel leaves a port in a morning
A.by
B.with
C.on
D.in
最新試題
AFTER DROPPING THE PILOT means （）.
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do（）.
The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.
The distance between the surface of the water and the tidal datum is the （）.
The distance between any two meridians measured along a parallel of latitude （）.
The height of eye correction is smaller than geometrical dip because of （）.
The period at high or low tide during which there is no change in the height of the water is called the （）.
A pilot vessel on pilotage duty shall show identity lights （）.
Attention is called to the fact that in many cases charted depths may be decreased by up to （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．