A.underway or making way
B.under sail or under tow
C.anchored or aground
D.not under command or restricted in her ability to maneuver
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A.During the hours of darkness
B.At all times when underway
C.From sunset to sunrise and restricted visibility
D.Sunrise to sunset
A.only the lights for a vessel towing
B.only the lights for a vessel restricted in her ability to maneuver
C.the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver
D.the lights for a towing vessel and the lights for a vessel not under command
A.towing vessel is less than 50 meters
B.towing vessel is greater than 50 meters
C.tow is less than 200 meters
D.tow is greater than 200 meters
A.A black ball in the forepart of her vessel
B.A black double frustum of a cone
C.A basket where best seen
D.A black cone point upwards
A.two balls in a vertical line
B.a diamond shape where it can best be seen
C.a ball on each end of the tow
D.no dayshape
最新試題
A safe water daymark has what shape? （）
Lighted information markers show（）.
An inconspicuous，partly submerged vessel or object being towed，where the length of tow is 100 meters，shall show（）.
A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show （）.
If your vessel were proceeding down river (descending)，a green square marker with a green reflector border on the right bank would be a（）.
A single towing light will be carried above a vessel’s sternlight（）.
According to the Rules，when should lights be displayed?（）.
A towing light，according to the Rules，is a（）.
An occulting light is one in which（）.
A vessel being towed astern，where the length of the tow exceeds 200 meters，will exhibit （）.