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Civil Engineering Practice Test: Surveying and Leveling
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Surveying and leveling is a measurement process that determines the height of the level and the distance of an area with another elevated surface.

The principle of levelling is to obtain a horizontal line of sight at which the vertical distance of a point above or below this line of sight is found.

The main purpose of balancing in the survey is: Find the heights of the given points in relation to the given data.

Civil Engineering Practice Test: Surveying and Leveling
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25 Questions

1. Contour interval is
2. A dumpy level is set up with its eye-piece vertically over a peg . The height from the top of peg to the centre of the eye-piece is 1.540 m and the reading on peg is 0.705 m. The level is then setup over . The height of the eye-piece above peg is 1.490 m and a reading on is 2.195 m. The difference in level between and is"
3. For true difference in elevations between two points and , the level must be set up
4. The 'point of curve' of a simple circular curve, is
5. To orient a plane table at a point with two inaccessible points, the method generally adopted, is
6. The Random errors tend to accumulate proportionally to
7. On a diagonal scale, it is possible to read up to
8. To orient a plane table at a point roughly south of the mid-point of two inaccessible conical hill stations and in the plains, a point is selected in line with AB and table is oriented at by bringing ab in line with AB. A ray is then drawn towards and at the table is oriented by back ray method. The orientation so obtained, is
9. Pick up the correct statement from the following:
10. The desired sensitivity of a bubble tube with 2 mm divisions is 30. The radius of the bubble tube should be"
11. In horizontal angles, the error due to imperfect levelling of the plate bubble is
12. The boundary of water of a still lake represents
13. An imaginary line joining the points of equal elevation on the surface of the earth, represents
14. Pick up the correct statement from the following:
15. If in a closed traverse, the sum of the north latitudes is more than the sum of the south latitudes and also the sum of west departures than the sum of the east departures, the bearing of the closing line is in the
16. While working on a plane table, the correct rule is:
17. Select the correct statement.
18. The 10 mm markings on a levelling staff placed at 20 m are separated by
19. If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is
20. The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to
21. The size of a plane table is
22. In setting up a plane table at any station
23. The real image of an object formed by the objective must lie
24. Under ordinary conditions, the precision of a theodolite traverse is affected by
25. Accuracy of elevation of various points obtained from contour map is limited to