1. Imaginary line passing through points having equal magnetic declination is termed as
[A] isogonic line
[B] agonic line
[C] isoclinic line
[D] aclinic line
Answer: Option A
2. The reduced bearing of a line is N 87°W. Its whole circle bearing is
[A] 93°
[B] 87°
[C] 3°
[D] 273°
Answer: Option D
Solution: 360° – 87° = 273°
3. Lines joining points of equal dip are called as
[A] Isogonic lines
[B] Isoclinic lines
[C] Agonic lines
[D] Aclinic lines
Answer: Option B
4. Dip of the horizon is the angle
[A] made by the line of sight with the horizontal
[B] between the lone of sight and the level surface
[C] between the line of sight and the tangent to the level surface
[D] made by the line of sight with the plumb line
Answer: Option C
5. The closing error in a closed traverse is adjusted by
[A] Lehmann’s rule
[B] Slide rule
[C] Bowditch’s rule
[D] Simpson’s rule
Answer: Option C