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
A.cable areas
B.dumping grounds
C.fish trap areas
D.precautionary areas
A.the period of darkness exceeds the period of light
B.there is only a partial eclipse of the light
C.the periods of light and darkness are equal
D.the period of light exceeds the period of darkness
A.After boarding the pilot
B.After the pilot leaving the ship
C.After the pilot going on board
D.After taking the pilot
A.high barometric pressure
B.jet stream
C.storm surge
D.torrential rains
A.on
B.of
C.in
D.for
最新试题
On a voyage from Capetown to London，the favorable ocean current off the coast of Africa is the （）.
The distance between the surface of the water and the tidal datum is the （）.
Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）
An occulting light is one in which （）.
A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
During a period of whiteout，you should expect which of the following（）.
A pilot vessel on pilotage duty shall show identity lights （）.
The distance between any two meridians measured along a parallel of latitude （）.
At last，the palm trees that fringe the natural harbor of Port Aloahoa come into view on the horizon lit by the setting sun.The meaning of this sentence is that （）.