默认题库 - 海上避碰规则

单选题

Every vessel which is directed by these Rules to keep out of the way of another vessel shall，if the circumstances of the case admit，avoid（）.

A. Crossing ahead of the other
B. Crossing astern of the other
C. Passing port to port
D. Passing starboard to starboard

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单选题

During the day，a vessel picking up a submarine cable shall carry（）.

A. Three shapes，the highest and lowest shall be red balls，and the middle shall be a white diamond
B. Two black balls
C. Three shapes；the highest and lowest shall be black balls，and the middle shall be a red diamond
D. Three shapes；the highest and lowest shall be black balls and the middle shall be a black diamond

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单选题

Dring a period of “whiteout”，you should expect which of the following（）.

A. Snowfall or blowing snow
B. Lack of ability to estimate distance
C. Harsh contrast between sun-illuminated snow cover and the background
D. Hazy horizons with extensive mirage effect

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单选题

Day-shapes must be displayed（）.

A. Between sunset and sunrise
B. Only between 8 AM and 4 PM
C. During daylight hours in any visibility
During daylight hours in unrestricted visibility only

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单选题

If there is sufficient sea room，alteration of（）may be the most effective action to avoid close-quarters situation.

A. speed and course
B. speed alone
C. course alone
D. speed or course

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单选题

The Rules state that certain factors are to be taken into account when determining safe speed. Those factors include（）.

A. state of wind，sea，and current，and the proximity of navigational hazards
B. maximum attainable speed of your vessel
C. temperature
D. aids to navigation that are available

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单选题

In determining safe speed，the Rules list all of the following as factors which must be taken into account EXCEPT the（）.

A. limitations of radar equipment
B. presence of background lights at night
C. maximum horsepower of your vessel
D. maneuverability of your vessel

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单选题

The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within（）.

A. The distance of visibility
B. 1/2 the distance of visibility
C. A distance appropriate to the existing circumstances and conditions
D. The distance that it would require for the propeller to go from full ahead to full aster

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单选题

In the daytime，you see a large sailing vessel on the beam. You know that she is also propelled by machinery if she shows（）.

A. a basket
B. a black ball
C. a black cone
D. two black cone

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单选题

You are approaching another vessel and will pass starboard to starboard without danger if no course changes are made.You should（）.

A. hold course and sound a two blast whistle signal
B. hold course and sound no whistle signal
C. change course to the right and sound one blast
D. hold course and sound two prolonged and two short blast

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