Category: Surveying

If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated____________?

Surveying 01/05/2023
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A. on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
B. on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate
C. on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate

Select the correct statement?

Surveying 06/01/2023
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A. Contour interval on any map is kept constant
B. Direct method of contouring is cheap¬er than indirect method
C. Inter-visibility of points on a contour map cannot be ascertained
D. Slope of a hill cannot be determined with the help of contours

A’level line’is a______________?

Surveying 04/01/2022
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A. horizontal line
B. line parallel to the mean spheriodal surface of earth
C. line passing through the center of cross hairs and the center of eye piece
D. line passing through the objective lens and the eye-piece of a dumpy or tilting level