Surveying Questions (S6)

In this post, I will share some important questions which are frequently asked in competitive examinations such as SSC, UPSC and state PSCs.



  1. Method of repetition can eliminate error due to ...


    1. inadjustments of line of collimation and the trunnion axis
    2. inaccurate graduations
    3. inaccurate bisection of the object
    4. all of the above

    View Answer
    Answer: d

  2. If the included angle is $\alpha$, the angle of deflection is ...


    1. $360^\circ - \alpha$
    2. $180^\circ - \alpha$
    3. $180^\circ + \alpha$
    4. $90^\circ + \alpha$

    View Answer
    Answer: b

  3. Which of the following is incorrect regarding a theodolite?


    1. The horizontal axis must be perpendicular to the vertical axis
    2. The axis of the altitude level must be perpendicular to the line of collimation
    3. The axis of the plate must lie in a plane perpendicular to the vertical axis
    4. The line of collimation must be perpendicular to the horizontal axis at its intersection with the vertical axis

    View Answer
    Answer: b
    The axis of the altitude level must be parallel to the line of collimation.
    If this condition exists, the vertical angles will be free from index error due to lack of parallelism.

  4. Error due to the line of collimation not being perpendicular to the horizontal axis can be eliminated by ...


    1. by taking both face readings
    2. by taking the mean of both vernier readings
    3. by taking the mean of several readings distributed over different portions of the graduated circle
    4. none of the above

    View Answer
    Answer: a

  5. Error due to an eccentricity of verniers can be eliminated by ...


    1. by taking both face readings
    2. by taking the mean of both vernier readings
    3. by taking the mean of several readings distributed over different portions of the graduated circle
    4. none of the above

    View Answer
    Answer: b

  6. Error due to parallax can be eliminated by...


    1. focusing the objective
    2. focusing the eye-piece
    3. focusing the objective and eyepiece
    4. none of the above

    View Answer
    Answer: c

  7. In a free needle method of traversing, the direction of the magnetic meridian is established at ...


    1. at the first station
    2. at the last station
    3. at every alternate station
    4. at all stations

    View Answer
    Answer: d

  8. In a closed traverse, the algebraic sum of deflection angles is ...


    1. $360^\circ$
    2. $270^\circ$
    3. $180^\circ$
    4. $90^\circ$

    View Answer
    Answer: a

  9. The latitude of a line of length $l$ and bearing $\theta$ is given by ...


    1. $l+cos \theta$
    2. $l-cos \theta$
    3. $l+sin \theta$
    4. $l-sin \theta$

    View Answer
    Answer: a

  10. In a closed traverse, the sum of north latitudes exceeds the sum of south latitudes and the sum of east departures exceeds the sum of west departures. The closing line will lie in the ...


    1. N-W quadrant
    2. S-E quadrant
    3. N-E quardant
    4. S-W quardant

    View Answer
    Answer: c

  11. In a closed traverse, the algebraic sum of latitudes and departures should be ...


    1. zero
    2. greater than zero
    3. zero and positive value respectively
    4. positive value and zero respectively

    View Answer
    Answer: a

  12. The error of closer is ...


    1. $p/e$
    2. $e/p$
    3. $e+p$
    4. $e-p$
    Where $e$ is the error of closure and $p$ perimeter of the traverse

    View Answer
    Answer: b

  13. In Bowditch's method, linear measurements and angular measurements are proportional to ...


    1. $1/ \sqrt{l}$ and $l$
    2. $\sqrt{l}$ and $\sqrt{l}$
    3. $1/ \sqrt{l}$ and $1/ \sqrt{l}$
    4. $\sqrt{l}$ and $1/ \sqrt{l}$

    View Answer
    Answer: d

  14. When linear and angular measurements are measured with equal precision then ...


    1. compass rule is used
    2. transit rule is used
    3. axis method is used
    4. any of the above

    View Answer
    Answer: a
    Bowditch's rule is also known as compass rule.




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