Earth Magnetic Field Multiple Choice Questions with Answers – PDF Download

MCQ 1: Magnitude of magnetic field at Earth's surface ranges from:

1. 0.25 to 1 gauss
2. 0.25 to 0.75 gauss
3. 0.25 to 0.65 gauss
4. 0.05 to 1.02 gauss

MCQ 2: Direction of the north end of a compass needle points, corresponding to the direction of the Earth's magnetic field lines is called:

1. electric north
2. magnetic north
3. true north
4. declined north

MCQ 3: Angle on the horizontal plane between magnetic north and true north is called:

1. magnetic declination
2. electric declination
3. magnetic inclination
4. electric inclination

MCQ 4: Direction of north along a meridian towards the geographic North Pole is called:

1. electric north
2. true north
3. magnetic north
4. declined north

MCQ 5: Angle made by a compass needle when the compass is held in a vertical orientation is called:

1. electric declination
2. magnetic declination
3. electric inclination
4. magnetic inclination