The use of an optical square is:

The horizontal angle between the meridian and the survey line measured in clockwise direction is called:

The angle made by a survey line with the prolongation of preceding line, is known as

Invar tapes are made of an alloy of:

An imaginary line joining the points of equal elevation on the earth represents:

Smallest length that can be drawn on map is

Bessel's solution to three point problem is related to

Contour lines merge in the case of

Bad ranging is an example for

In levelling operation, the point of known elevation is termed as

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W.C.B. of a survey line is determined using

A link of a metric chain is cm in length

An EDM based instrument is

Error =_______________

In a well-conditioned triangle, no angle should be less than___________

The main principle of surveying is__________

The whole circle bearing of a line observed by a prismatic compass is 110°. Its bearing read on a Surveyor's Compass, is

Which of the following is not true?

The first staff reading after the level has been moved to a new position, is called

The reduced hearing of a line isN85W. Its whole circle bearing is

The imaginary line joining the point of inter section of crosshair at diaphragm and the optical centre of the object glass and its continuation is

A theodolite fitted with ananallatic lens is known as

Collimation method is used in

Plotting of inaccessible points on a plane table is done by

The chain man at the rear end of the chain is called

1 foot

Bessel's solution to three point problem is related to

Contour lines merge in the case of

Bad ranging is an example for

Survey related to large waterbodies is called

I acre =m^2

For tachometer the additive and multiplying constants are

Water surface of a still pond represents

Sensitivity of bubble tube can be increased by

In an internal focusing type of telescope, the lens provided is

The principle of working of an optical square is based on