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Civil Engineering :: Surveying

  1. Tilt of the staff in stadia tacheometry increases the intercept if it is

  2. A.

    away from the telescope pointing down hill

    B.

    towards the telescope pointing up-hill

    C.

    away from the telescope pointing up-hill

    D.

    none of these.


  3. The conventional sign shown in below figure represents a

  4. A.

    bridge carrying railway below road

    B.

    bridge carrying road below railway

    C.

    bridge carrying road and railway at the same level

    D.

    a level crossing.


  5. To orient a plane table at a point with two inaccessible points, the method generally adopted, is

  6. A.

    intersection

    B.

    resection

    C.
    radiation
    D.

    two point problem.


  7. The combined effect of curvature and refraction over a distance L kilometres is

  8. A.

    67.2 L2 mm

    B.

    76.3 L2 mm

    C.

    64.5 L2 mm

    D.

    none of these.


  9. Number of links per metre length of a chain are

  10. A.

    2

    B.

    5

    C.

    8

    D.

    10

    E.

    20


  11. The method generally preferred to for contouring an undulating area, is

  12. A.

    chain surveying

    B.

    plane table surveying

    C.

    tacheometrical surveying

    D.

    compass surveying.


  13. If the declination of the needle is 10° W

  14. A.

    each of the whole circle reckoning has to be micros by 10°

    B.

    in the quadrantal method, the correction is positive in the 1st and 3rd quadrants

    C.

    in the quadrantal method, the corrections is negative in 2nd and 4th quadrants

    D.

    all the above.


  15. 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

  16. A.

    0.015 m

    B.

    0.030 m

    C.

    0.045 m

    D.

    0.060 m


  17. For taking offsets with an optical square on the right hand side of the chain line, it is held

  18. A.

    by right hand upside down

    B.

    by left hand upright

    C.

    by right hand upright

    D.

    by left hand up side down.


  19. If the whole circle bearing of a line is 270°, its reduced bearing is

  20. A.

    N 90° W

    B.

    S 90° W

    C.

    W 90°

    D.

    90° W.