單項(xiàng)選擇題Data relating to the direction and velocity of rotary tidal currents can be found in the （）.

A.Mariner's Guide
B.Tidal Current Tables
C.Nautical Almanac
D.Tide Tables


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1.單項(xiàng)選擇題Coral atolls，or a chain of islands at right angles to the radar beam，may show as a long line rather than as individual targets due to （）.

A.the effects of beam width
B.limitations on range resolution
C.the pulse length of the radar
D.the multiple-target resolution factor

2.單項(xiàng)選擇題Before a Master relieves a Pilot of the conn，the （）.

A.Master should foresee any danger to the vessel on the present course
B.vessel must be in extremis
C.Master should agree to sign a release of liability form
D.Master must first request the Pilot to take corrective action

3.單項(xiàng)選擇題An embarked Pilot （）.

A.is a specialist hired for his local navigational knowledge
B.is solely responsible for the safe navigation of the vessel
C.relieves the Master of his duties
D.relieves the officer of the watch

4.單項(xiàng)選擇題An anchored vessel on pilotage duty must show which light(s) at night? （）

A.A sternlight only
B.Anchor lights only
C.A white light over a red light only
D.A white light over a red light and anchor lights