An important rule in using pantograph is ............

The vertical distance above or below the datum is called ............

The representation of general topography of a very flat terrain is possible only ............

A negative declination shows that the magnetic meridian is to the ............

A line joining the apex of a triangle to some fixed point on the opposite side is called a ............

If the whole circle bearing of a line is 180°, its reduced bearing is ............

Measurements taken with a wrong can be corrected by using the relation ............

For true difference in elevations between two points A and B, the level must be set up ............

The contour interval is kept inversely proportional to ............