If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference to_________________?

Related Mcqs:

If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is_____________?

A. 0° 30′ B. 89° 30′ C. 90° 30′ D. 269° 30′...

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

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

Which of the following errors can be neutralised by setting the level midway between the two stations ?

A. error due to curvature only B. error due to refraction only C. error due to both curvature and re-fraction D. none of the above...

Select the correct statement_______________?

A. A contour is not necessarily a closed curve B. A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour C. Two contours of different elevations do not cross each other except in case of an overhanging cliff D. All of the above statements are … Select the correct statement_______________?Read More...

In the cross-section method of indirect contouring, the spacing of cross-sections depends upon_____________?

1. contour interval 2. scale of plan 3. characteristics of ground The correct answer is ? A. only (1) B. (1) and (2) C. (2) and (3) D. (1), (2) and (3)...