A.red lights
B.red lights and two white lights
C.red lights with a white light in between
D.white lights with a red light in between
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A.increase
B.decrease
C.change only if the vessel comes about on the opposite tack
D.not change
A.propeller velocity
B.speed of advance
C.wake distribution
D.wake fraction
A.barometer
B.wind vane
C.anemometer
D.thermometer
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
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
最新試題
How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel?（）.
A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.
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 order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.
As a vessel falls off the wind from close-hauled to a beam reach，the tendency for the vessel to move sideways through the water will（）.
In order for a vessel to be engaged in fishing she must be（）.
The biggest problem you generally encounter while towing a single tow astern is（）.
One major advantage of the round turn maneuver in a man overboard situation is that it（）.
The condition where a ship on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in（）.
In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should（）.