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【单选题】

The 3-cm radar as compared to a 10-cm radar with similar specifications will().

A、give better range performance in rain,hail,etc

B、display small targets in a mass of dense sea clutter at a greater range

C、have less sea return in choppy rough seas

D、display a more maplike presentation for inshore navigation

更多“The 3-cm radar as compared to a 10-cm radar with similar specifications will().”相关的问题
第1题

A、Signal absorption by the ionosphere  B、Heavy sea swells  C、The rescue personnel were monitoring the 10-cm radar  D、The rescue personnel were monitoring the 3-cm radar  

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第2题

A、be more suitable for river and harbor navigation  B、provide better range performance on low lying targets during good weather and calm seas  C、have a wider horizontal beam width  D、have more sea return during rough sea conditions  

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第3题

A、A.give better range performance in rain,hail,etc  B、B.display small targets in a mass of dense sea clutter at a greater range  C、C.have less sea return in choppy rough seas  D、D.display a more map like presentation for inshore navigation  

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第4题

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5题

A、A.on the same course as your vessel  B、B.at the same speed as your vessel  C、C.on the same course and speed as your vessel  D、D.on a reciprocal course at the same speed as your vessel  

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第6题

A、station the look-out in the wheelhouse to keep a continuous watch on the radar  B、secure the sounding of fog signals until a vessel closes within five miles  C、station a look-out as low down and far forward as possible  D、keep the radar on the shortest available range for early detection of approaching vessels  

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第7题

A、the effects of beam width  B、limitations on range resolution  C、the pulse length of the radar  D、the multiple-target resolution factor  

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第8题

A、Increase the radar gain to pick up weak echoes through the rain  B、Increase the STC setting to reduce close-in spurious signals  C、Navigate as though the effective range of the radar has been reduced  D、Increase the range of the inner and outer guard rings  

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第9题

A、It transmits "SOS" and the vessel's name and position in slow speed Morse Code  B、It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's position  C、It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's position  D、None of the above  

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