Practice Quiz

FAA Private Pilot Test Prep

Category - FAA Private Pilot

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Deviation error of the magnetic compass is caused by
  1. The electromagnetic effects of the instruments and equipment in the plan
  2. The difference between true north and magnetic north
  3. The turning of the aircraft to the right
  4. No compass is always true; you should expect a degree or two difference in any compass
Explanation
Correct answer: A. The Electromagnetic effect of the aircraft equipment and instruments. All of the items are correct to a degree. There is a difference between true and Magnetic North which is the Magnetic Variation. When turning from a North heading the compass may go in the wrong direction at first and the difference is usually related to the latitude you are flying. But, the electronics in the plane will cause some difference in the magnetic compass, so be aware of it when flying.
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