单选题Lateral movement of the vessel to leeward of its course defines （）.A LeewayB LeesideC LeewardD Lee moving

A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit ______.

A.the masthead lights for a towing vessel

B.the lights for a vessel restricted in its ability to maneuver

C.sidelights，stern light and towing light

D.All of the above

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

Lateral movement of the vessel to leeward of its course defines ______.

A.Leeway

B.Leeside

C.Leeward

D.Lee moving

Leeway is the ______.

A.difference between the true course and the compass course

B.momentum of a vessel after her engines have been stopped

C.lateral movement of a vessel downwind of her intended course

D.displacement of a vessel multiplied by her speed

A vessel restricted by its ability to manoeuvre by the nature of its work or its deep draft is__

A.Hampered vessel

B.Giving way vessel

C.Vessel not under control

D.Disabled vessel

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

The direction in which a vessel is steered is the course. The path actually followed is the ______.

A.route

B.track

C.heading

D.course over the ground