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【单选题】

If a magnetic compass is not affected by any magnetic field other than the Earth’s,which statement is TRUE?().

A、Compass error and variation are equal

B、Compass north will be true north

C、Variation will equal deviation

D、There will be no compass error

更多“If a magnetic compass is not affected by any magnetic field other than the Earth’s,which statement is TRUE?().”相关的问题
第1题

AIf the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets.  B、If the blue ends of the magnets are aft you should lower the fore-and-aft tray  C、If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets  D、If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets  

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第2题

AA.If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should add some magnets  B、B.If the blue ends of the magnets are aft you should lower the fore-and-aft tray  C、C.If the blue ends of the magnets are aft,and the fore-and-aft tray is at the top,you should reverse the magnets  D、D.If the blue ends of the magnets are forward,and the fore-and-aft tray is at the bottom,you should add some magnets  

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第3题

A、Move the quadrantal spheres closer to the compass  B、Raise the heeling magnet if the red end is up  C、Remove some of the Flinders bar  D、Raise or lower the athwartship magnets  

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第4题

AA.increases  B、B.remains the same  C、C.decreases  D、D.is unimportant and may be neglected  

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第5题

AIf the quadrantal spheres are all the way out,replace them with smaller spheres  B、If the quadrantal spheres are all the way in,replace them with larger spheres  C、If the quadrantal spheres are all of the way out,move the spheres in  D、If the quadrantal spheres are all the way out,replace them with larger spheres.  

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第6题

AA.If the quadrantal spheres are out as far as possible replace them with smaller spheres  B、B.If the quadrantal spheres are in as far as possible remove one of the spheres  C、C.If the quadrantal spheres are in as far as possible replace them with smaller spheres  D、D.If the quadrantal spheres are out as far as possible,move the quadrantal spheres in  

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第7题

A、north magnetic pole  B、south magnetic pole  C、magnetic prime vertical meridian  D、magnetic equator  

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第8题

A、Compass error and variation are equal  B、Compass north will be true north  C、Variation will equal deviation  D、There will be no compass error  

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第9题

A、Heeling magnet  B、Flinders bar  C、Fore-and-aft magnets  D、All of the above can be set on magnetic east or magnetic west headings  

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