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Surveying

As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?

MCQs / Q&A, Surveying /
As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?

A. 98.70
B. 100.00
C. 102.30
D. 103.30

As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________? Read More »

MCQs / Q&A, Surveying

If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is_________________?

MCQs / Q&A, Surveying /
If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is_________________?

A. 99.345 m
B. 100.345 m
C. 100.655m
D. 101.870m

If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is_________________? Read More »

MCQs / Q&A, Surveying

Which of the following errors can be eliminated by taking mean of bot face observations ?

MCQs / Q&A, Surveying /
Which of the following errors can be eliminated by taking mean of bot face observations ?

A. error due to imperfect graduations
B. error due to eccentricity of verniers
C. error due to imperfect adjustment of plate levels
D. error due to line of collimation not being perpendicular to horizontal axis

Which of the following errors can be eliminated by taking mean of bot face observations ? Read More »

MCQs / Q&A, Surveying

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_________________?

MCQs / Q&A, Surveying /
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_________________?

1. altitude bubble on index frame
2. altitude bubble on index frame if it is to be used as a level
3. altitude bubble on telescope
4. altitude bubble on telescope if it is to be used as a level
The correct answer is?
A. only (1)
B. both (1) and (4)
C. only (3)
D. both (2) and (3)

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_________________? Read More »

MCQs / Q&A, Surveying

Which of the following errors cannot be eliminated by taking both face observations ?

MCQs / Q&A, Surveying /
Which of the following errors cannot be eliminated by taking both face observations ?

A. error due to horizontal axis not being perpendicular to the vertical axis
B. index error i.e. error due to imperfect adjustment of the vertical circle vernier
C. error due to non-parallelism of the axis of telescope level and line of collimation
D. none of the above

Which of the following errors cannot be eliminated by taking both face observations ? Read More »

MCQs / Q&A, Surveying

If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will_________________?

MCQs / Q&A, Surveying /
If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will_________________?

A. increase
B. decrease
C. not change
D. either ‘a’ or ‘b’

If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will_________________? Read More »

MCQs / Q&A, Surveying