Surveys which are carried out to provide a national grid of control for preparation of accurate maps of large areas, are known ............

If L is the measured length of a base line whose elevation is h above MSL: the necessary correction to reduce the base l…

If a chain is used at a temperature ............ the temperature at which it was calibrated, the error in measured lengt…

Plotting of inaccessible points on a plane table, is done by ............

A line normal to the plumb line at all points is known as ............

Accuracy of 'fix' by two point problem, is ............

True meridians are generally preferred to magnetic meridians because ............

A 30 m chain after measuring a distance of 6000 m was found to be 10 cm more than the designated length. If the chain wa…

Setting out of a simple curve by two theodolite method does not require ............