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Oxford, Air Navigation
Terrestrial Magnetism: DGCA Air Navigation questions
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Question 1 of 5
The red pole of a freely suspended magnet will point towards ....... and at latitude 60°N will point ....... at an angle known as the angle of .......
Question 2 of 5
If the total force of the earth's field at a point is T and the horizontal and vertical components H and Z, the value of H is found by the formula:
Question 3 of 5
The slow change in the earth's magnetic variation is known as the ....... change and is caused by .......
Question 4 of 5
Soft iron is comparatively ....... to magnetize whilst hard iron is ....... to demagnetize.
Question 5 of 5
Which of the following materials are classed as ferromagnetic?
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