A.during the day，three balls in a vertical line
B.during the day，three shapes，the highest and lowest being balls and the middle being a diamond
C.when making way at night，two all-round red lights，sidelights，and a sternlight
D.when making way at night，masthead lights，sidelights，and a sternlight
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A.a vessel restricted in her ability to maneuver
B.a vessel not under command
C.a vessel engaged in fishing
D.a vessel constrained by her draught
A.smelling the bottom
B.squatting
C.bank suction
D.bank cushion
A.the masthead lights for a towing vessel
B.the lights for a vessel restricted in its ability to maneuver
C.sidelights，sternlight and towing light
D.All of the above
A.straight astern
B.to port
C.to starboard
D.in no particular direction
A.at anchor
B.mine-clearing
C.engaged in fishing
D.engaged in towing
最新試題
For the deepest water when rounding a bend in a river，you should navigate your vessel（）.
How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel?（）.
In ballasting to survival draft，while in transit，due to extreme wind and wave loads，thrusters or propulsion，if available，should be used to（）.
In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.
Apparent wind speed blowing across a vessel under tow can be measured by a(n)（）.
The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel? （）
If the towline parts，you should（）.
In order for a vessel to be engaged in fishing she must be（）.
If you are the stand-on vessel in a crossing situation，you may take action to avoid collision by your maneuver alone. When may this action be taken?（）.
One advantage of chain over wire rope for a tow bridle is that chain（）.