單項選擇題A vessel is equipped with twin propellers，both turning outboard with the engines half ahead. If there is no wind or current and the rudders are amidships，what will happen?（）

A.The bow will swing to starboard
B.The bow will swing to port
C.The vessel will steer a zigzag course
D.The vessel will steer a fairly straight course.


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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 vessel is considered to be “restricted in her ability to maneuver” under the Rules if she is （）.

A.at anchor
B.mineclearing
C.engaged in fishing
D.engaged in towing

3.單項選擇題A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE? （）

A.During the day，she would display three balls in a vertical line
B.If making way，she would show masthead lights at night
C.If at anchor，she need not show anchor lights while displaying identifying lights
D.Her fog signal would consist of a rapid ringing of a bell for five seconds every minute

4.單項選擇題A vessel is “l(fā)isted” when it is（）.

A.down by the head
B.down by the stern
C.inclined due to off-center weight
D.inclined due to wind

5.單項選擇題A vessel is “in sight” of another vessel when（）.

A.she can be observed by radar
B.she can be observed visually from the other vessel
C.she can be plotted on radar well enough to determine her heading
D.her fog signal can be heard