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Surveyor Practice Test: Levelling Survey
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Surveyor Practice Test: Levelling Survey
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25 Questions

1. What is the fundamental line in levels?
2. What is the correction for refraction for a distance of 5km (Correction of refraction =0.0112D2)
3. What is the another name of assumed bench mark?
4. Which levelling rod is used for precise work?
5. Which surface is normal to the direction of gravity at all points?
6. What is the name of levelling?
7. How many permanent adjustment are required in dumpy level?
8. Which bench mark is established for short duration such as at the end of a day’s work?
9. What is rise or fall, if back sight reading taken on B.M is 2.045m and inter sight on point =2.68m?
10. What is the correction for curvature for a distance of 10km (Correction of curvature =0.0785D2)?
11. What is the difference of level if dumpy level is at mid point C Staff reading on A = 1.580m Staff reading on B = 1.220m?'
12. What is the difference in level if back sight of reading 3.370m inter sight of reading 2.975m?
13. Whar does the hand signal represents?
14. What is the name of level, if the fly levelling done at the end of day’s work to connect the finishing point with the starting point on that particular day?
15. What is the term of sight, if the last sight taken on a levelling staff held over a point of unknown elevation before shifting the instruments?
16. What is the term of sight, if the sight taken between the back sight and fore sight on a levelling staff held over a point of unknown elevations?
17. What is the combined correction for curvature and refraction for a distance of 5km (Combined correction for refraction and curvature is 0.0673D2)?
18. What is the height of Tee beam above the floor level if height of collimation of level on the floor 102.385m, inverted staff reading of the bottom of Tee beam - 3.890m and R.L of floor level 100.595m?
19. What type of level does not require any protection from the sun?
20. What does the hand signal represent?
21. Which levelling is the relative height of point is found out by some direct observation?
22. What is the name of the levelling while the relative elevations of different points are obtained by measuring the vertical angles and horizontal distance?
23. Which levelling staff consists of three pieces?
24. What is the levelling used while it is not possible to set up the level mid way between two points as across river or lake?
25. Which levelling instrument is required in second adjustment to make the line of collimation parallel to the axis of the bubble tube?