Exam 11: Surveying and Measurement Techniques: Part A

The multiplying constant for the tacheometer is, generally, kept as

The projection of a traverse line on a line parallel to the meridian is known as

In geodetic surveying, the curvature of the earth is taken into consideration.

A scale which has a common representative fraction, but read in different measures, is called a

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

The method of intersection in plane tabling is commonly used for

Generally, the deflection angle is measured twice, once with the telescope normal and once with the telescope reversed.

Contour lines cross ridge or valley lines at

The index glass in an optical square is

When the position of a point is to be fixed most accurately, it should be located by oblique offsets.

A tie line in a chain surveying

In levelling, the correction for combined curvature and refraction (in metres) is equal to

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

The height of instrument is the height of the centre of the telescope above the ground where the level is set up.

The latitude of a traverse line is obtained by multiplying its length with the cosine of its reduced bearing.

The optical square is used to measure angles by

The magnitude of super-elevation depends upon the speed of the vehicle and the radius of the curve

Direct ranging is possible only when the end stations are

The fundamental principle of surveying is to work from the

In locating the details of inaccessible objects visible atleast from transit stations, the method used is