A magnetic bearing of N 5430’E was observed along a line XY in July 1982. The declination for the area surveyed is found by interpolation from isogonic chart dated 1975 to be 1730’W with an annual...

A magnetic bearing of N
5430’E was observed along a line XY in July
1982. The declination for the area surveyed
is found by interpolation from isogonic chart
dated 1975 to be 1730’W with an annual
change of 01’ westward.

1. Compute the change of declination of
the line.
a. 007’W              c. 037’W
b. 730’W              d. 023’W

2. Compute the true bearing of the line.
a. 7153’                 c. 7207’
b. 3700’                 d. 3707