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Civil Engineering :: Surveying

  1. Bowditch rule is applied to

  2. A.

     an open traverse for graphical adjustment

    B.

     a closed traverse for adjustment of closing error

    C.

     determine the effect of local attraction

    D.

     none of the above

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  3. The adjustment of horizontal cross hair is required particularly when the instrument is used for

  4. A.

     leveling

    B.

     prolonging a straight line

    C.

     measurement of horizontal angles

    D.

     all of the above

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  5. Pick up the correct statement from the following:

  6. A.

     The horizontal direction of the pole is called astronomical north

    B.

     The angle between the direction of true north and the direction of a survey line is called astronomical bearing

    C.

     The astronomical bearing is generally called azimuth

    D.

     All the above

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  7. Pick up the correct statement from the following:

  8. A.

     The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph

    B.

     The difference between the absolute parallax of two points depends upon the difference in their elevations

    C.

     The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base

    D.

     All the above

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  9. For any star to be a circumpolar star, its

  10. A.

     Declination must be 0°

    B.

     Declination must be 90°

    C.

     Distance from the pole must be less than the latitude of the observer

    D.

     Hour angle must be 180°

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  11. The sidereal day is the time interval between two successive upper transits of

  12. A.

     Mean sun

    B.

     First point of Aries

    C.

     First point of Libra

    D.

     The polar star

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  13. If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will

  14. A.

     increase

    B.

     decrease

    C.

     not change

    D.

     either ‘A’ or ‘B’

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  15. The prismatic compass and surveyor’s compass

  16. A.

     give whole circle bearing (WCB) of a line and quadrantal bearing (QB) of a line respectively

    B.

     both give QB of a line and WCB of a line

    C.

     both give QB of a line

    D.

     both give WCB of a line

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  17. The position of the sun when its north declination is maximum is known as

  18. A.

     Vernal equinox

    B.

     Autumnal equinox

    C.

     Summer solstice

    D.

     Winter solstice

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  19. The rate of change of parallax dp/dh with respect to change in h, may be expressed as

  20. A.

     fB/(H - h)

    B.

     fB/(H - h)²

    C.

     fB/(H + h)

    D.

     fB/(H + h)²

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