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MCQs / Q&A

The difference between a level line and a horizontal line is that_______________?

The difference between a level line and a horizontal line is that_______________?

A. level line is a curved line while hori-zontal line is a straight line
B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
C. horizontal line is normal to plumb line while level line may not be normal to the plumb line
D. both are same

The difference between a level line and a horizontal line is that_______________? Read More »

MCQs / Q&A, Surveying

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

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

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

MCQs / Q&A, Surveying

If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?

If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________?

A. true R.L
B. more than true R.L
C. less than true R.L
D. none of the above

If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be_______________? Read More »

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________________?

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_________________?

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 ?

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