The working from whole to the part is done in surveying in order to ensure that

Personal error in levelling occur due to

The representative fraction of the scale 1cm = 1 kilometer will be

Number of subdivision per meter length of a levelling staff is

In total station, data is stored in

Line of collimation

If the back sight and fore sight distance are kept equal during levelling observations, then the effect of both refracti…

Probable accidental error in precise levelling as recommended by international Geodetic Association, should not exceed

The included angles of a theodolite traverse, are generally measured