A metallic tape is made of ............

Profile leveling is usually done for determining ............

The method of intersection in plane tabling is commonly used for ............

Height of instrument method of leveling is ............

An imaginary line lying throughout on the surface of the earth and preserving a constant inclination to the horizontal, …

The true or geographical meridians through the various stations ............

The error in measured length due to incorrect holding of chain is ............

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

Resolving power of a telescope depends on ............