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

If bearing of AB = N50°E, bearing of AC = N40°W when angle BAC

If bearing of OA =20°, and bearing of OB= 140° then angle AOB

An Optical Square is used to measure angles by

The angle of intersection of the horizon glass and index glass in an optical square is

The adjustable cross-staff is used for setting out an offset

The instrument used for setting out an offset at a right angle is called

The limiting length of the offset is ------- when it is set out by eye

The cumulative errors that occur for a length of line 'l' are proportional to

The correction to be applied to each 30 m chain for a line along a slope of θ is

A line joining some fixed points on the main survey line, is called a

A 20 m chain after measuring a distanceof 4000 m was found to be 10 cm more than the designated length. If the chain was Standardized before the commencement of survey then the length is

Correction for pull is

Correction for slope is:

Indirect ranging is adopted when the two ends of chain line are

The correction for Negative error sag required is

The error in measured length due to sag of chain or tape is known as

When the length of chain used in measuring distance is longer than the Standard length, the error in measured distance will be:

An Engineer's chain are made up of:

Handles of chains are made up of

An average length of a pace is:

The surveying used to determine additional details such as boundaries of fields, is called: