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  • Question
  • The theodolites used for making tacheometric observations by optical wedge system, are


  • Options
  • A. provided with stadia hairs in front of eye piece
  • B. not provided with stadia hairs at all
  • C. fitted with a glass wedge inside the telescope
  • D. fitted with a glass wedge in front of telescope.

  • Correct Answer
  • fitted with a glass wedge in front of telescope. 


  • Surveying problems


    Search Results


    • 1. A level when set up 25 m from peg A and 50 m from peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m and 284.295 m respectively, the collimation error per 100 m is

    • Options
    • A. 0.015 m
    • B. 0.030 m
    • C. 0.045 m
    • D. 0.060 m
    • Discuss
    • 2. The combined effect of curvature and refraction over a distance L kilometres is

    • Options
    • A. 67.2 L2 mm
    • B. 76.3 L2 mm
    • C. 64.5 L2 mm
    • D. none of these.
    • Discuss
    • 3. The constant vertical distance between two adjacent contours, is called

    • Options
    • A. horizontal interval
    • B. horizontal equivalent
    • C. vertical equivalent
    • D. contour interval
    • E. contour gradient.
    • Discuss
    • 4. The correction to be applied to each 30 metre chain length along ?° slope, is

    • Options
    • A. 30 (sec ? - 1) m
    • B. 30 (sin ? - 1) m
    • C. 30 (cos ? - 1) m
    • D. 30 (tan ? - 1) m
    • E. 30 (cot ? - 1) m.
    • Discuss
    • 5. Stadia techeometry was discovered by James Watt in the year.

    • Options
    • A. 1670
    • B. 1770
    • C. 1870
    • D. 1900.
    • Discuss
    • 6. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

    • Options
    • A. mean sea level
    • B. geoid surface
    • C. level surface
    • D. horizontal surface.
    • Discuss
    • 7. During levelling if back sight is more than foresight

    • Options
    • A. The forward staff is at lower point
    • B. The back staff is at lower point
    • C. The difference in level, cannot be ascertained.
    • D. none of these.
    • Discuss
    • 8. The representation of general topography of a very flat terrain is possible only

    • Options
    • A. by drawing contours at large interval
    • B. by drawing contours at small interval
    • C. by giving spot levels at large interval
    • D. by giving spot levels to salient features at close interval.
    • Discuss
    • 9. The Trapezoidal rule of volumes V of an embankment divided into a number of sections equidistant D, is given by

    • Options
    • A.
    • B.
    • C. V = [A1 + An + 2(A2 + A4 + ... + An - 1) + 4(A3 + A5 + ... + An - 2)]
    • D. V = [A1 + An + 4(A2 + A4 + ... + An - 1) + 4(A3 + A5 + ... + An - 2)].
    • Discuss
    • 10. Pick up the correct statement from the following

    • Options
    • A. the contour lines having the same elevation cannot unite and continue as one line
    • B. a contour can not end abruptly, but must ultimately close itself not necessarily within the limits of map.
    • C. the direction of steepest slope at a point on a contour is at right angles to the contour
    • D. all the above.
    • Discuss


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