An axis about which the telescope can be rotated in a horizontal plane

The method of surveying used for determining the relative height of points on the surface of the earth is called

A curve of varying radius is known as

The indentation marks left on bricks during process of moulding is known as

Gypsum is added in the manufacture of portland cement

A canal aligned approximately parallel to natural drainage of a country is

Cleaning of rapid sand filter is done by

Suitable gradient for design of highway

The design capacity is also known as

A track assembly used for diverting train from one track to another is