單項(xiàng)選擇題Which statement is TRUE，according to the Rules（）.

A.A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver
B.A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draft
C.A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishing
D.A vessel engaged in fishing while underway shall，so far as possible，keep out of the way of a vessel restricted in her ability to maneuver


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1.單項(xiàng)選擇題Which statement correctly applies to a situation where a sailing vessel is overtaking a power-driven vessel（）.

A.The power-driven vessel must keep out of the way of the sailing vessel
B.A special circumstance situation exists
C.The sailing vessel must keep out of the way of the power- driven vessel
D.The vessel which has the other vessel to the right must keep out of the way

2.單項(xiàng)選擇題Which one of two crossing power-driven vessels has the right of way in a fog（）.

A.Both vessels
B.Neither vessel
C.The vessel on portside
D.The vessel on starboard side

3.單項(xiàng)選擇題Which one of the following rules is not regarding two power-driven vessels meeting end or nearly end on so as to involve risk of collision（）.

A.Each shall keep her course and speed
B.Each shall alter her course to starboard
C.Each shall pass on the portside to the other
D.Each shall indicate such action by one short blast on the whistle

4.單項(xiàng)選擇題Which display indicates a vessel conducting mineclearance operations（）.

A.Three balls in a vertical line
B.Two balls in a vertical line
C.One ball near the foremast and one ball at each yardarm
D.One diamond near the foremast and one ball at each yardarm

5.單項(xiàng)選擇題When you doubt the existence of risk of collision,（）.

A.such risk shall be deemed to exist
B.such risk shall not be deemed to exist
C.you needn't take any action to avoid collision with any vessel
D.you should accelerate your speed ahead