To avoid large centering error with very short legs, observations are generally made
Different grades are joined together by a
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations?
The line of collimation method of reduction of levels, does not provide a check on
Which of the following methods of contouring is most suitable for a hilly terrain?
The chord of a curve less than peg interval, is known as
The size of a plane table is
If the reduced bearing of a line AB is N60°W and length is 100 m,then the latitude and departure respectively of the line AB will be
A lemniscate curve between the tangents will be transitional throughout if the polar deflection angle of its apex, is
Contour interval is
The smaller horizontal angle between the true meridian and a survey line, is known
Azimuths are horizontal angles observed clockwise from any reference meridian.
Contour interval is
Check lines (or proof lines) in Chain Surveying, are essentially required
After fixing the plane table to the tripod, the main operations which are needed at each plane table station are
The correct sequence of these operations is
There are two stations A and B. Which of the following statements is correct?
The Random errors tend to accumulate proportionally to
In direct method of contouring, the process of locating or identifying points lying on a contour is called
The conventional sign shown in below figure represents a
Correct Answer :- a
Explanation : The conventional sign shown in below figure represents a road bridge. A conventional symbol is a symbol that is widely accepted. The various features shown on a map are represented by conventional signs or symbols.
In a map or drawings or plans or in land surveying, the objects or an area is depicted by symbols not by names. As a civil engineer, you must know how to read the drawings, maps and plans. This post will be a key for you to read maps.
In this article, we are going to show you different types of symbols used in topographic land surveys, road maps, railway maps, surveying maps, building plans, Electrical and telephone lines.
Pick up the incorrect statement from the following:
Measured distance is too small.
For the construction of highway (or railway)
Detailed plotting is generally done by
If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as
The method of reversal
The line normal to the plumb line is known as
In levelling operation
Before shifting the instrument the last sight is foresight which is taken on change point. After shifting the instrument the first sight taken is taken on the same change point i.e back sight.