A staff reading taken on a bench mark is called:

A fixed point of reference of known elevation is called

A surface which is normal to the direction of gravity at all points, as indicate by a plumb line, is known as

A levelling station is a place where

The very first reading taken is called

In plane tabling the centering can be done by

The method of surveying in which field work and plotting work are done simultaneously is called

The method of plane tabling commonly used for establishing the instrument stations only is

The operation of turning the table so that all the lines on the paper are parallel to the corresponding lines on the ground, is called

In plane tabling, the instrument used to measure horizontal and vertical distance directly is known as

Radiation in plane table survey is the best suited when

An advantage of plane tabling's

Intersection is preferred to radiation when

The technique of plotting all the accessible stations with a single set up of plane table is called

When the angular measurements are more precise than measurements in a traverse, the balancing of traverse is

When the angular and linear measurement sare equally traversing the balancing is done by

The latitude and departure of a traverse line are both the whole circle bearing of the line lies in the

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

The Reduced bearing may have any value of between

In order to measure a horizontal angle more accurately than a vernier, a method

The deflection angle may have any value between

Deflection angle in a traverse is equal to the

An angle between the inclined line of sight and the horizontal is called

The direct angles may have any value between

The capacity of a telescope of producing a sharp image is called its

When the cross hairs are not clearly visible

The most commonly used set of theodolite operations are

The image formed by the objective in the plane of cross hairs is

A line Joining the optical centre of the object glass and the Centre of the eyepiece is known as

The least count of theodolite in measuring angle is

The process of turning the telescope of a theodolite Over the supporting axis through 180° in a vertical plane is called

The theodolite is an instrument used for measuring very accurately

The amount of correction due to local attraction at a place is

The variation of magnetic declination within a day is called

The maximum value of a surveyor's compass is

Isogonic lines are the lines having the same

A freely floating needle slightly gets inclined to the horizontal anywhere except on the equator. It is called.

In a whole circle bearing system, maximum value of bearing is

When the magnetic bearing of the sun at noon is 185° 20' the magnetic declination will be

The magnetic bearing of a line is 54° 30' and the magnetic declination is 4° 30'west. The true bearing of a line will be

At equator the amount of dip is

The horizontal angle between the true meridian and magnetic meridian is Known as

The direction indicated by a freely suspend Properly magnetic needle is called

The reduced bearing corresponding whole circle bearing of 210° 15' is

Sum of the included angles in a traverse of n sides can be obtained by

The lines of earth's magnetic field run from:

If the fore bearing of a line is N 36° 25' W its back bearing will be

The line in which the plane passing through the given point and the north and south poles intersects the surface of the earth is called:

In a whole circle bearing System, S 25° 25' E corresponding to

ABCD is a square, Bearing of AB = 50° hence bearing of DC is