Surveying - Engineering

Q1:

Which one of the following statements is correct ?

A when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity

B the mean of the readings of the two verniers gives correct reading free from the eccentricity

C one vernier may be used if the readings of two verniers differ by a constant

D all the above.

ANS:D - all the above.

No answer description is available.