Question

Define the following:
a. True North b. Gyro North c. Variation

Answer 1

a. true north not be and not c

Answer 2

a. True North:

It denotes the geographic north pole in a compass. To get to know true North, the best way is to point out the north star. North star is believed to be the true North.

b. Gyro North:

It is mostly used for navigation purposes in ships. A gyrocompass is used to show the direction of the true north.

c. Variation:

The horizontal angle between the magnetic north and true north. It is also called a magnetic variation of magnetic declination.