A.should never use radar bearings
B.should only use radar bearings when the range exceeds the distance to the horizon
C.can use radar information from one object to fix the position
D.must use information from targets forward of the beam
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A.straight line
B.arc
C.parabola
D.line parallel to the coast
A.one sidelight and the masthead light are visible
B.the vessels will pass closer than half a mile
C.both vessels sound one prolonged blast
D.both sidelights and masthead light(s) are visible
A.required navigation lights
B.lifesaving equipment standards
C.casualty reporting procedures
D.currents in various locations
A.Tidal Current Tables
B.Tide Tables
C.American Practical Navigator
D.Sailing Directions
A.Admiralty Sailing Directions
B.Admiralty List of Lights
C.Admiralty List of Signals
D.Admiralty Notices to Mariners
最新試題
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean （）.
A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.
As these features are not all charted，special caution should be exercised （） vessels navigating in the vicinity.
The height of tide is the （）.
AFTER DROPPING THE PILOT means （）.
Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）
The distance between the surface of the water and the tidal datum is the （）.
A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.
The distance between any two meridians measured along a parallel of latitude （）.