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Civil Engineering :: Surveying

  1. If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula,

  2. A.

    \( \frac { L1 } { L } \) X S

    B.

    \( \frac { L } { L1 } \) X S

    C.

    \(\frac { L - L1 } {L } \)  X S 

    D.

    \([ \frac { L1} {L} ]^2\) X S 

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  3.  

    The method of reversal

  4. A.
    is usually directed to examine whether a certain part is truly parallel or perpendicular to another
    B.

    makes the erroneous relationship between parts evident

    C.

    both (a) and (b)

    D.

    neither (a) nor (b).

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  5. You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the method of

  6. A.

    repetition

    B.

    reiteration

    C.

    double observations

    D.

    exactness.

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  7. If the plane table is not horizontal in a direction at right angles to the alidade, the line of sight is parallel to the fiducial edge only for

  8. A.

    horizontal sights

    B.

    inclined sights upward

    C.

    inclined sight downward

    D.
    none of these.

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  9. If the whole circle bearing of a line is 180°, its reduced bearing is

  10. A.

    S 0° E

    B.

    S 0° W

    C.

    S

    D.

    N

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  11. The chord of a curve less than peg interval, is known as

  12. A.

    small chord

    B.

    sub-chord

    C.

    normal chord

    D.

    short chord.

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  13. Mistakes which may produce a very serious effect upon the final results arise due to

  14. A.

    in attention

    B.

    in experience

    C.

    carelessness

    D.

    all of these.

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  15. A well conditioned triangle has no angle less than

  16. A.

    20°

    B.

    30°

    C.

    45°

    D.

    60°.

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  17. Contour lines of different elevations can unite to form one line, only in the case of

  18. A.

    a vertical cliff

    B.

    a saddle

    C.

    a water shed line

    D.
    a hill top.

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  19. The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to

  20. A.

    shimmering

    B.

    horizontal refraction

    C.

    vertical refraction

    D.

    both shimmering and horizontal refraction.

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