A.dip of the line
B.stretch of the line
C.strain on the line
D.length of the line
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A.it is faster
B.it can be used in both the immediate action and the delayed action situations
C.in fog，if the turn is started as soon as the man goes over，the vessel will be at the point where he went over when the turn is completed
D.it returns the vessel to the original track line on a reciprocal course
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
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
最新試題
If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.
Most of your vessel’s superstructure is forward. How will the vessel lie when drifting with no way on?（）.
A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.
In order for a vessel to be engaged in fishing she must be（）.
As a ship moves through the water，it drags with it a body of water called the wake. The ratio of the wake speed to the ship’s speed is called（）.
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 towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.
In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should（）.
The catenary（）.
In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.