search
arrow-left Previous
Next arrow-right
Q: ____ are the lines which are run in the field to check the accuracy of the work in surveying.
  • A. Tie lines
  • B. Main lines
  • C. Check lines
  • D. Base lines
Correct Answer: Option C - Check line– • Check lines or proof lines are the lines which are run in the field to the check accuracy of the work. The length of the check line measured in the field must agree with its length on the plane. • The measurement length of the check line and the computed one (from the scale of the plan) must be the same as base line. • A check line may be laid by joining the apex of the triangle to any point on the opposite side or by joining two points on any two sides of a triangle. Each triangle must have a check line.
C. Check line– • Check lines or proof lines are the lines which are run in the field to the check accuracy of the work. The length of the check line measured in the field must agree with its length on the plane. • The measurement length of the check line and the computed one (from the scale of the plan) must be the same as base line. • A check line may be laid by joining the apex of the triangle to any point on the opposite side or by joining two points on any two sides of a triangle. Each triangle must have a check line.

Explanations:

Check line– • Check lines or proof lines are the lines which are run in the field to the check accuracy of the work. The length of the check line measured in the field must agree with its length on the plane. • The measurement length of the check line and the computed one (from the scale of the plan) must be the same as base line. • A check line may be laid by joining the apex of the triangle to any point on the opposite side or by joining two points on any two sides of a triangle. Each triangle must have a check line.