A.at any time while underway
B.while at anchor
C.while alongside a vessel
D.All of the above
您可能感興趣的試卷
你可能感興趣的試題
A.when at anchor
B.only when making way
C.at any time when underway
D.only when the identifying lights are not being shown
A.underway，but not making way
B.aground
C.being towed
D.not engaged in pilotage duty
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
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
最新試題
A pilot vessel on pilotage duty shall show identity lights （）.
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 （）.
A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.
Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．
Above-normal tides near the center of a hurricane maybe caused by the （）.
Conditions for crossing a rough bar are usually best at （）.
The distance between any two meridians measured along a parallel of latitude （）.
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.
A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.
Lateral movement of the vessel to leeward of its course defines （）.