CE Quiz 45

The size of a theodolite is denoted by

The angle of elevation to the top of a tower is measured as 45°00’ using a theodolite placed at a distance of 100m from the tower. The staff reading held at a station of RL 100m was 2.5m, the telescope being horizontal. The reduced level of the top of the tower is

The staff reading upon the floor and roof of a workshop are 1.5 m and -2m respectively. The reduced level of the floor the workshop is 201.355m. Determine the height of the workshop.

The following consecutive readings were taking along a continuously sloping ground with a 4m leveling staff and a standard dumpy level. Identify the readings 3.850m and 0.565m respectively.

If the vertical circle does not read zero when the line of sight is horizontal the error is called

A theodolite is kept at a distance D from a tower of height 200 m. The base of tower and that of theodolite is at a same elevation from the bench mark. The height of the instrument from the ground level is 2 m. The angle of elevation measured to the top of tower is 45°. Find the distance D?

It is required to locate a route from P to Q at an upward gradient of 1 in 100. The contour map of the area is available at a contour interval of 20m at a scale of 1:10000. The radius of the arc required to obtain the route path is:

The combined correction for curvature and refraction for a distance of 1000 m is:

If the summation of foresights and backsights of a leveling work carried out are 7m and 3m respectively. If the reduced level of the last staff location is 98m, then the reduced level of first staff location is:

Two points A and B are 1000 m apart across a river. The reciprocal levels measured are:

The true level difference between A and B is: