Comparative scale is a pair of scale having a common

The multiplying constant of a theodolite is

In a traverse the deflection angle is the difference between

To observe an included angle with better accuracy the method preferred will be

Error in sighting and reading is termed as

While taking a back sight with a theodolite the screw which is tightened first is

The size of a theodolite is specified by

The process of turning telescope about the horizontal axis in a vertical plane by 180 degree revolution is known as

The vertical distance between any two consecutive contour is called

A series of closely spaced contour lines represents

Tilting levels are used in

An imaginary line connecting the points of equal elevation on the ground surface is

Leveling across a river is done by

The levels to which the earth work will have to be carried out is known as

Permanent adjustment are carried out to

The line of collimation should be parallel to

Height of instrument method in leveling compared to rise and fall method is

The sensitivity of bubble tube can be increased by

Correction for curvature is

In leveling, the effect of retraction is to

Correction for error due to refraction is

Correction applied for eliminating the effect of earth's curvature is

Which of the error is personal error

Cross hair in surveying telescope are fitted

The water surface of still pond represents a

The line lying through on a level surface and normal to the Plumb line is

The benchmark established by P.W.D or government agencies is known as

A fixed point with known elevation is known as

Staff point with known elevation is known as

Alidade is used for

Trough compass is used to determine is used to determine

Accurate centering of plane table is done by

In plane table survey the method used for plotting of inaccessible points is

The method used for establishing instrument station for plane table survey is

Local attraction of compass survey is due to

A bearing is noted 45° N-E represents

Prismatic compass is used to determine

The whole circle bearing of a place is 259° then the quadrantal bearing should be

The graduations in a prismatic compass starts with a zero at ------- end

An instrument used for setting out an angle of 45 degree is

The difference between fore bearing and back bearing of a line is not 180 degree it is due to

The graduated ring of a prismatic compass is graduated in

The needle of magnetic compass is generally supported on a

If 'n' is the number of sides, the sum of interior angles of a closed traverse is

The least count of prismatic compass is

The direction of a line relative to a given meridian is called

In prismatic compass zero is marked at

The main different between a map and a plan is

In a tape, the correction for temperature is C,= a(Tm-Ts)*L, where Tm stands for

An instrument which is used for survey for measuring of angles is