Home / Civil Engineering / Surveying :: Section 3

Civil Engineering :: Surveying

  1. The direction of steepest slope on a contour, is

  2. A.

    along the contour

    B.

    at an angle of 45° to the contour

    C.

    at right angles to the contour

    D.

    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Back bearing of a line is equal to

  4. A.

    Fore bearing ± 90°

    B.

    Fore bearing ± 180°

    C.

    Fore bearing ± 360°

    D.

    Fore bearing ± 270°

    View Answer

    Workspace

    Discuss Discuss in Forum


  5.  

    In an internal focusing telescope

  6. A.

    the objective is at a fixed distance from the diaphragm

    B.

    the focusing is done by the sliding of a divergent lens.

    C.

    the focusing divergent lens is situated at about the middle of the tube

    D.

    all the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. The longitudinal section of the surface of bubble tube is

  8. A.

    straight

    B.

    circular

    C.

    parabolic

    D.

    elliptic.

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. Imaginary line passing through points having equal magnetic declination is termed as

  10. A.

    isogon

    B.

    agonic line

    C.

    isoclinic line

    D.

    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. In case of reduction of levels by the height of instrument method,

  12. A.

    ∑ B.S. - ∑ F.S. = difference in R.L.S of the first station and last station

    B.

    ∑ (R.L. + I + F.S.) - first R.L = ∑ (H.I. + No. of R.L.s.)

    C.

    both (a) and (b) above

    D.

    neither (a) nor (b).

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. A theodolite is said to be in perfect adjustment if

  14. A.

    rotation axis is vertical to the transit axis

    B.

    transit axis is perpendicular to line of collimation

    C.

    line of collimation sweeps out a vertical plane while the telescope is elevated or depressed

    D.

    all the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates

  16. A.

    the rotation axis is vertical

    B.

    the trummion axis is horizontal

    C.

    the line of collimation is perpendicular to vertical axis

    D.

    none of the above

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. The main plate of a transit is divided into 1080 equal divisions. 60 divisions of the vernier coincide exactly with 59 divisions of the main plate. The transit can read angles accurate upto

  18. A.
    5"
    B.

    10"

    C.

    15"

    D.

    20"

    E.

    30"

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. Pick up the correct statement from the following :

  20. A.

    the lines of sight while observing back sight and fore sight lie in the same horizontal plane

    B.

    the staff readings are measurements made vertically downwards from a horizontal plane

    C.

    the horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis

    D.

    all the above.

    View Answer

    Workspace

    Discuss Discuss in Forum