單項(xiàng)選擇題SAFE SPEED is defined as that speed where().

A.you can stop within your visibility range
B.you can take proper and effective action to avoid collision
C.you are traveling slower than surrounding vessels
D.no wake comes from your vessel


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1.單項(xiàng)選擇題In order for a stand-on vessel to take action in a situation,she must determine that the other vessel().

A.Is restricted in her ability to maneuver
B.Has sounded the danger signal
C.Is not taking appropriate action
D.Has not changed course since risk of collision was determined

2.單項(xiàng)選擇題If your vessel is the stand-on vessel in a crossing situation().

A.You must keep your course and speed
B.You may change course and speed as the other vessel must keep clear
C.The other vessel must keep her course and speed
D.Both vessels must keep their course and speed

4.單項(xiàng)選擇題Five or more short blasts on a vessel’s whistle indicates that she is().

A.In doubt that another vessel is taking sufficient action to avoid a collision
B.Altering course to starboard
C.Altering course to port
D.The stand-on vessel and will maintain course and speed

5.單項(xiàng)選擇題Every vessel which is directed by these Rules to keep out of the way of another vessel shall,if the circumstances of the case admit,avoid().

A.Crossing ahead of the other
B.Crossing astern of the other
C.Passing port to port
D.Passing starboard to starboard