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Surveying

If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to_______________?

MCQs / Q&A, Surveying /
If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to_______________?

A. d
B. 1/d
C. d2
D. 1/d2

If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to_______________? Read More »

MCQs / Q&A, Surveying

The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________?

MCQs / Q&A, Surveying /
The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________?

A. 94.80 m
B. 99.71 m
C. 100.29 m
D. 105.20 m

The R.L, of the point A which is on the floor is 100 m and back sight reading on A is 2.455 m. If the foresight reading on the point B which is on the ceiling is 2.745 m, the R.L. of point B will be_______________? Read More »

MCQs / Q&A, Surveying

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

MCQs / Q&A, Surveying /
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 ?

MCQs / Q&A, Surveying /
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_______________?

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_______________?

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