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
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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
A.required navigation lights
B.lifesaving equipment standards
C.casualty reporting procedures
D.currents in various locations
最新試題
A pilot vessel on pilotage duty shall show identity lights （）.
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do（）.
The period at high or low tide during which there is no change in the height of the water is called the （）.
The Earth’s irregular heating is caused by （）.
A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.
During daylight savings time the meridian used for determining the time is located farther （）.
An occulting light is one in which （）.
Clearance gauges at bridges indicate （）.
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 （）.
In Admiralty Sailing Directions，bands is the word used to indicate（）marking．