單項選擇題A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.

A.on
B.of
C.in
D.for


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1.單項選擇題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（）.

A.Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel
B.State his concerns to the Pilot but do not interfere with the handling of the vessel
C.Direct the Pilot to stop the vessel and anchor if necessary until the situation clears
D.Recommend an alternative action and if not followed relieve the Pilot

2.單項選擇題A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.

A.from the ship's propeller when making up aft
B.from being overrun if making up forward
C.hull damage while alongside passing a hawser
D.getting in a tripping position

3.單項選擇題A pilot vessel on pilotage duty shall show identity lights （）.

A.at any time while underway
B.while at anchor
C.while alongside a vessel
D.All of the above

4.單項選擇題A pilot vessel on pilotage duty at night will show sidelights and a sternlight （）.

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

5.單項選擇題A pilot vessel may continue to sound an identity signal if she is （）.

A.underway，but not making way
B.aground
C.being towed
D.not engaged in pilotage duty