A.air gap
B.freeboard
C.penetration
D.water depth
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A.range of tide
B.height of tide
C.charted depth
D.actual water depth
A.difference in longitude
B.mid-longitude
C.departure
D.meridian angle
A.increases in north latitude and decreases in south latitude
B.decreases as DLO increases
C.increases with increased latitude
D.decreases with increased latitude
A.set the vessel to the left
B.set the vessel to the right
C.offer resistance in the form of a head current
D.furnish additional thrust in the form of a fair or following current
A.Canary Current
B.Benguela Current
C.Agulhas Current
D.South Atlantic Current
最新試題
Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean （）.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a ship is the（）.
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 （）.
The height of a light is measured from which reference plane?（）
On a voyage from Halifax,N.S.,to Dakar,West Africa,the Canary Current will （）.
During daylight savings time the meridian used for determining the time is located farther （）.
The height of eye correction is smaller than geometrical dip because of （）.
Clearance gauges at bridges indicate （）.
AFTER DROPPING THE PILOT means （）.