A.Canary Current
B.Benguela Current
C.Agulhas Current
D.South Atlantic Current
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A.Leeway
B.Leeside
C.Leeward
D.Lee moving
A.List of Lights
B.Coast Pilot
C.Sailing Directions
D.List of Radiobeacons
A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal
A.watch
B.look for
C.see
D.regard
A.west in west longitude and east in east longitude
B.east in west longitude and west in east longitude
C.west
D.east
A.Snowfall or blowing snow
B.Lack of ability to estimate distance
C.Harsh contrast between sun-illuminated snow cover and the background
D.Hazy horizons with extensive mirage effects
A.more serious
B.not less serious
C.more dangerous
D.no more dangerous
A.low water slack
B.high water slack
C.high water ebb
D.high water flood
A.lower low water
B.high water
C.low water
D.sea level
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
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Conditions for crossing a rough bar are usually best at ().
Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? ()
The height of tide is the ().
Attention is called to the fact that in many cases charted depths may be decreased by up to ().
The height of eye correction is smaller than geometrical dip because of ().
On a voyage from Halifax,N.S.,to Dakar,West Africa,the Canary Current will ().
A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is ().
Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean ().
Clearance gauges at bridges indicate ().
The distance between any two meridians measured along a parallel of latitude ().