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  • Question
  • Pick up the correct statement from the following :


  • Options
  • A. the tangent screw enables to give small movement under conditions of smooth and positive control
  • B. standing on the tripod is the levelling head or trib arch
  • C. the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical
  • D. all the above.

  • Correct Answer
  • all the above. 


  • Surveying problems


    Search Results


    • 1. For a closed traverse the omitted measurements may be calculated

    • Options
    • A. length of one side only
    • B. bearing of one side only
    • C. both length and bearing of one side
    • D. length or bearing of adjacent side
    • E. all the above.
    • Discuss
    • 2. If L is the perimeter of a closed traverse, ?D is the closing error in departure, the correction for the departure of a traverse side of length l, according to Bowditch rule, is

    • Options
    • A.
    • B.
    • C.
    • D. .
    • Discuss
    • 3. Pick up the correct statement from the following:

    • Options
    • A. the theodolite in which telescope can be rotated in vertical plane is called a transmit
    • B. when the vertical circle is to the left of the telescope during observation, it is called to be in left face
    • C. when the vertical circle is to the right of the telescope during observation, it is called to be in right face
    • D. all the above.
    • Discuss
    • 4. For true difference in elevations between two points A and B, the level must be set up

    • Options
    • A. at any point between A and B
    • B. at the exact mid point of A and B
    • C. near the point A
    • D. near the point B.
    • Discuss
    • 5. If ? is the slope of the ground and l is the measured distance, the correction is

    • Options
    • A. 2l sin2 ?/2
    • B. 2l cos2 ?/2
    • C. 2l tan2 ?/2
    • D. 2l cot2 ?/2.
    • Discuss
    • 6. The sensitiveness of a level tube decreases if

    • Options
    • A. radius of curvature of its inner surface is increased
    • B. diameter of the tube is increased
    • C. length of the vapour bubble is increased
    • D. both viscosity and surface tension are increased.
    • Discuss
    • 7. The limiting length of an offset does not depend upon

    • Options
    • A. accuracy of the work
    • B. method of setting out perpendiculars
    • C. scale of plotting
    • D. indefinite features to be surveyed.
    • Discuss
    • 8. If f1 and f2 are the distances from the optical centre of a convex lens of focal length f to conjugate two points P1 and P2 respectively, the following relationship holds good

    • Options
    • A. f = f1 + f2
    • B. f = (f1 + f2)
    • C.
    • D. none of these.
    • Discuss
    • 9. True meridians are generally preferred to magnetic meridians because

    • Options
    • A. these converge to a point
    • B. these change due to change in time
    • C. these remain constant.
    • D. None of these.
    • Discuss
    • 10. Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to

    • Options
    • A. 14.14
    • B. 28.28 m
    • C. 200 m
    • D. none of these.
    • Discuss


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