The zero of the graduated circle of a prismatic compass is located a

The latitude of an traverse line is obtained by the product of length and

…..meridian of a place changes its position with time

Magnetic bearing of survey lines at any place

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

The convenient direction assumed as a meridian for measuring bearing of survey lines is known as

The horizontal angle between the north meridian and the line measured clockwise is known as

The circle of contact of earth and the cone of visual rays passing through the point of observation is called

Imaginary line passing through points having equal magnetic declination is termed as

Which among the following is the back bearing of N 30 E

The needle of the magnetic compass is generallty supported on a

The true meridian passes through

In a traverse the angle measured clockwise from the preceding survey line to the following survey line is called

Compass survey is suitable where …is the meain consideration

The imaginary line joining the points of zero declination on the surface of the earth is

The algebric sum of deflection angles of a closed traverse is equal to

The horizontal angle between the magnetic meridian and geographical meridian is called

In a prism square the angle between the reflecting face is

Box of prismatic compass is made of

In indirect method of contouring the best method of interpolation of contour is

The alignment of highway are generally taken along

The process of spacing of contour proportionally between the plotted ground points is termed as

The height of telescopic metric staff

Levelling should always commence from a

The line normal to the plumb line at all points

The least count of a levelling staff is

In rise and fall method a complete check is provided on the calculation of

Any fixed point of known elevation is

Levelling carried out along the given route to find the elevation of points at known distance is called

The observation is taken on a change point is

The eliminqation of parallax error during temporary adjustment of a level is

The art of determining and representing the relative height or elevation of different points on the surface of the earth

In levelling a station point where

If a level in permanent adjustment its line of collimation is parallel to the axis of the

Sensitiveness of bubble tube can be increased by

An example for a level surface is

When the length of sight is more than 100m the staff used is called

The straight line tangential to the longitudinal curve of the level tube at its centre is called

in…type level, the line of collimation is not at right angles to the vertical axis if tye instrument is permanent adjustment

The height of isntrument is the

The first reading taken after setting the level is

The line of collimation method of reduction of level does not provide a check on

The telescope of a dumpy leve

The bench mark established by survey department of India is known as

Correction applied for eliminating the effect of earth curvature

When the bubble is in centre of the bubble tube the bubble line is

The distance between the optical centre to principal focus of a lens

The staff reading taken just before shifting a levelling instrument is

The meeting point of vertical axis, horizontal axis and line of sight of a theodolite is called

Cross hair in surveying telescope are fitted