A.range of tide
B.height of tide
C.charted depth
D.actual water depth
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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
A.Leeway
B.Leeside
C.Leeward
D.Lee moving
最新試題
During a period of whiteout，you should expect which of the following（）.
Attention is called to the fact that in many cases charted depths may be decreased by up to （）.
For full information regarding the current circulation of the Indian Ocean,（） Sailing Direction,Current Atlas,etc.
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 Earth has the shape of a(n) （）.
The height of a light is measured from which reference plane?（）
A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.
Clearance gauges at bridges indicate （）.
The distance between the surface of the water and the tidal datum is the （）.
Due to lapse of time the risk in these areas to surface navigation is now considered （）than the ordinary risks of navigation，but a very real risk still exists with regard to anchoring，fishing or any form of submarine or seabed activity.