If the magnetic azimuth (from north) of a line is 120°15' in a location where the magnetic declination is 12°E, what is the true azimuth of the line?
A)108°15'
B)132°15'
C)S 108 ° 15' E
D)S 132°15' E

Question

Quizplus · Accepted Answer

If the magnetic azimuth (from north) of a line is 120°15' in a location where the magnetic declination is 12°E, the true azimuth of the line is 132°15'.
Solution
Remember the following rule: when changing from magnetic to true azimuth, add east declination and subtract west declination.
True azimuth = magnetic azimuth + east declination
Where magnetic azimuth = 120°15'
East declination = 12°
True azimuth = 120°15' + 12°
= 132°15'

If the Magnetic Azimuth (From North) of a Line Is