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【单选题】

A radar range to a small，charted object such as a light will provide a line of position in which form? （）

A、Straight line

B、Arc

C、Parabola

D、Hyperbola

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更多“A radar range to a small，charted object such as a light will provide a line of position in which form? （）”相关的问题
第1题
[单选题] If there is any doubt as to the proper operation of a radar，which statement is TRUE?（）.

A、Only a radar expert can determine if the radar is operating  B、All radars have indicator lights and alarms to signal improper operation  C、A radar range compared to the actual range of a known object can be used to check the operation of the radar  D、The radar resolution detector must be energized to check the radar  

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第2题
[单选题] Which general statement concerning radar is FALSE?（）.

A、Raising the antenna height increases the radar range  B、The ability of radar to detect objects is unaffected by weather conditions  C、Radar bearings are less accurate than radar ranges  D、Radar should be checked regularly during clear weather to ensure that it is operating properly  

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第3题
[单选题] A navigator fixing a vessel’s position by radar （）.

A、should never use radar bearings  B、should only use radar bearings when the range exceeds the distance to the horizon  C、can use radar information from one object to fix the position  D、must use information from targets forward of the beam  

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第4题
[单选题] A navigator fixing a vessel’s position by radar （）.

A、can use radar information from one object to fix the position  B、should never use radar bearings  C、should only use radar bearings when the range exceeds the distance to the horizon  D、must use information from targets forward of the beam  

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第5题
[单选题] When using the radar for navigating（）.

A、the best fix is obtained by using a tangent bearing and a range  B、and using two radar ranges for a fix，the objects of the ranges should be close to reciprocal bearings  C、and using ranges，the most rapidly changing range should be measured last  D、and crossing a radar range of one object with the visual bearing of a second object，the two objects should be 80°to 110°apart  

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第6题
[单选题] The common way to obtain your ship’s position is（）.

A、keeping a close watch and lookout  B、taking a radar range and bearing  C、observing a radar target and listening to signals  D、keeping a well clear caution  

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第7题
[单选题] The common way to obtain your ship’s position is（）.

A、keeping a close watch and lookout  B、taking a radar range and bearing  C、observing a radar target and listening to signals  D、keeping a well clear caution  

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第8题
[单选题] Which procedure(s) shall be used to determine risk of collision? （）

A、Watching the compass bearing of an approaching vessel  B、Systematic observation of objects detected by radar  C、Long-range radar scanning  D、All of the above  

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第9题
[单选题] What is TRUE when operating in fog and other vessels are detected by radar?（）.

A、You should make an ample change to port for a vessel crossing on the starboard bow  B、You should maneuver in ample time if a close-quarters situation is developing  C、You should determine the course and speed of all radar contacts at six minute intervals  D、Long-range scanning will provide early warning of ALL other vessels within the radar's range  

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第10题
[单选题] What is TRUE when operating in fog and other vessels are detected by radar?（）

A、you should make an ample change to port for a vessel crossing on the starboard bow  B、You should maneuver in ample time if a close-quarters situation is developing  C、You should determine the course and speed of all radar contacts at six minutes intervals  D、Long-range scanning will provide early warning of all other vessels within the radar’s range  

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