surveying MCQs – Page 2

Practise focused surveying questions with marked answers for exam preparation and subject revision.

surveying Mcqs
21. If the staff is not held vertical at a levelling station, the reduced level calculated from the observation would be_______________?
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A. none of the above

B. less than true R.L

C. more than true R.L

D. true R.L

22. If the length of a chain is found to be short on testing, it can be adjusted by______________?
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A. closing the joints of the rings if opened out

B. straightening the links

C. removing one or more small circular rings

D. all of the above

23. After fixing the plane table to the tripod, the main operations which are needed at each plane table station are ______________ ?
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A. correct sequence of these operations is

B. centering

C. orientation

D. levelling

24. The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called_________________?
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A. resection

B. traversing

C. radiation

D. intersection

25. Which of the following methods of offsets involves less measurement on the ground?
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A. method of oblique offsets

B. method of ties

C. method of perpendicular offsets

D. all involve equal measurement on the ground

26. The adjustment of horizontal cross hair is required particularly when the instrument is used for_____________?
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A. prolonging a straight line

B. all of the above

C. leveling

D. measurement of horizontal angles

27. For accurate work, the steel band should always be used in preference to chain because the steel band______________?
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A. can be easily repaired in the field

B. is practically inextensible and is not liable to kinks when in use

C. is lighter than chain

D. is easier to handle

28. 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_______________?
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A. 94.80 m

B. 100.29 m

C. 99.71 m

D. 105.20 m
29. The two point problem and three point problem are methods of________________?
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A. resection and orientation

B. resection

C. traversing

D. orientation

30. In direct method of contouring, the process of locating or identifying points lying on a contour is called_______________?
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A. horizontal control

B. ranging

C. vertical control

D. centring

31. The prismatic compass and surveyors compass________________?
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A. give whole circle bearing (WCB. of a line and quadrantal bearing (QB. of a line respectively

B. both give QB of a line and WCB of a line

C. both give QB of a line

D. both give WCB of a line

32. If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167, the magnetic declination at that place is________________?
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A. 23 S

B. 13 W

C. 13 E

D. 77 N

33. Which of the following methods of plane table surveying is used to locate the position of an inaccessible point ?
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A. intersection

B. resection

C. radiation

D. traversing

34. Sensitiveness of a level tube is designated by______________?
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A. length of level tube

B. none of the above

C. length of bubble of level tube

D. radius of level tube
35. With the rise of temperature, the sensitivity of a bubble tube______________?
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A. none of the above

B. remains unaffected

C. decreases

D. increases

36. In the prismatic compass______________?
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A. the line of the sight does not move with the box

B. the magnetic needle and graduated circle do not move with the box

C. the magnetic needle moves with the box

D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction

37. Transit rule of adjusting the consecutive coordinates of a traverse is used where________________?
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A. linear measurements are more accurate than angular measurements

B. all of the above

C. angular measurements are more accurate than linear measurements

D. linear and angular measurements of the traverse are of equal accuracy

38. In the quadrantal bearing system, a whole circle bearing of 293 30? can be expressed as______________?
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A. N2330W

B. W2330N

C. S11330N

D. N6630W
39. Refraction correction________________?
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A. partially eliminates curvature correction

B. has no effect on curvature correction

C. adds to the curvature correction

D. completely eliminates curvature correction

40. A negative declination shows that the magnetic meridian is to the________________?
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A. western side of the true meridian

B. southern side of the true meridian

C. eastern side of the true meridian

D. none of the above