TERRESTRIAL MAGNETISM

#3. In the diagram below, the compass heading of the aircraft is ......., the magnetic heading ....... and the true heading .......

• A025° 015° 020°
• B335° 035° 020°
• C335° 340° 035°
• D025° 015° 340°

#1. 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 .......

• Athe nose of the aircraft, downwards, deviation
• Bthe north magnetic pole, downwards, variation.
• Cthe nearest pole, downwards, declination.
• Dthe north magnetic pole, downwards, dip.

#2. 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:

• AH = T sin dip
• BH = Z tan dip
• CH = T cos dip
• DH = T tan dip