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Civil Engineering :: Surveying

  1. While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance

  2. A.

    20 (sin θ - 1)

    B.

    20 (cos θ - 1)

    C.

    20 (sec θ - 1)

    D.

    20 (cosec θ - 1).

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  3. Subtense tacheometry is generally preferred to if ground is

  4. A.

    flat

    B.

    undulating

    C.

    mountaineous

    D.

    deserts.

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  5. For high sensivity of the bubble tube

  6. A.

    a liquid of low viscosity is used

    B.

    a liquid of low surface tension is used

    C.

    the bubble space should be long

    D.

    the bubble tube should not be too narrow

    E.

    all the above.

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  7. Short offsets are measured with

  8. A.

    an ordinary chain

    B.

    an invar tape

    C.

    a metallic tape

    D.

    a steel tape.

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  9. The operation of revolving a plane table about its vertical axis so that all lines on the sheet become parallel to corresponding lines on the ground, is known

  10. A.

    levelling

    B.

    centering

    C.

    orientation

    D.
    setting.

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  11. There are two stations A and B. Which of the following statements is correct :

  12. A.

    the fore bearing of AB is AB

    B.

    the back bearing of AB is BA

    C.

    the fore and back bearings of AB differ by 180°

    D.

    all the above.

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  13. Chain surveying is well adopted for

  14. A.

    small areas in open ground

    B.

    small areas with crowded details

    C.

    large areas with simple details

    D.

    large areas with difficult details.

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  15.  

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

  16. A.

    north-west quadrant

    B.

    north east quadrant

    C.

    south-east quadrant

    D.

    south-west quadrant.

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  17.  

    A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is

  18. A.

    208.75 m

    B.
    202.75 m
    C.

    206.75 m

    D.

    211.75 m

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  19. The Huygen's telescope eye piece

  20. A.

    is aplanatic

    B.

    achromatic

    C.

    both (a) and (b)

    D.
    neither (a) nor (b).

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