If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be
A). true R.L.
B). more than true R.L.
C). less than true R.L.
D). none of the above
2. While adjusting the tilting level which one of the following is considered as the principal line?
4. International Date Line is located along
5. What is the purpose of conducting the resection method in the plane table surveying?
6. Which of the following is not the function of levelling head ?
8. The length of a chain is measured from
9. Which method is used for the preparation of a contour plan for a route survey?