A. +50 m, +86.6 m
B. +86.6 m, -50 m
C. +50m, -86.6 m
D. +70.7 m,-50 m
✅ The correct answer is option B.
Surveying MCQs
22. With the rise of temperature, the sensitivity of a bubble tube______________?
A. decreases
B. increases
C. remains unaffected
D. none of the above
✅ The correct answer is option A.
23. The horizontal angle between the true meridian and magnetic meridian at a place is called______________?
A. azimuth
B. declination
C. local attraction
D. magnetic bearing
✅ The correct answer is option B.
24. If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will_________________?
A. increase
B. decrease
C. not change
D. either ‘a’ or ‘b’
✅ The correct answer is option A.
25. Bowditch rule is applied to_________________?
A. an open traverse for graphical adjustment
B. a closed traverse for adjustment of closing error
C. determine the effect of local attraction
D. none of the above
✅ The correct answer is option B.
26. Contour interval is_______________?
A. inversely proportional to the scale of the map
B. directly proportional to the flatness of ground
C. larger for accurate works
D. larger if the time available is more
✅ The correct answer is option A.
27. The size of a plane table is________________?
A. 750 mm x 900 mm
B. 600 mm x 750 mm
C. 450 mm x 600 mm
D. 300 mm x 450 mm
✅ The correct answer is option B.
28. For a tacheometer the additive and multi-plying constants are respectively________________?
A. 0 and 100
B. 100 and 0
C. 0 and 0
D. 100 and 100
✅ The correct answer is option A.
29. For a well-conditioned triangle, no angle should be less than______________?
A. 20°
B. 30°
C. 45°
D. 60°
✅ The correct answer is option B.
30. The angle between the prolongation of the preceding line and the forward line of a traverse is called ________________?
A. deflection angle
B. included angle
C. direct angle
D. none of the above
✅ The correct answer is option A.