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Civil Engineering :: Railways

Railways - Section 1
Railways - Section 2
Railways - Section 3
Railways - Section 4

  1. Boxing of ballast is done

    2. A.

    under rails
    B.

    at the rails
    C.

    in between two rails
    D.

    in between two sleepers.

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  2. Best ballast contains stones varying in size from

    3. A.

    1.5 cm to 3 cm
    B.

    2.0 cm to 4 cm
    C.

    2.0 cm to 5 cm
    D.

    2.5 cm to 6 cm

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  3. For holding a rail in position, no chairs are used for
    4. A.

    flat footed rails
    B.

    bull headed rails
    C.

    double headed rails
    D.

    both (a) and (b)

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  4. Distance between the inner rail and check rail provided on sharp curve, is
    5. A.

    40 mm
    B.

    42 mm
    C.

    44 mm
    D.
    46 mm
    E.

    50 mm

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  5. Coal ash (or cinder) is used in initial stages of a new construction of railway for

    6. A.
    wooden sleepers
    B.

    steel sleepers
    C.

    cast iron sleepers
    D.

    none of these.

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  6. Pot sleepers are in the form of

    7. A.

    a number of bowls connected together with a tie bar
    B.

    two bowls placed under each rail and connected together with a tie bar
    C.

    two bowls placed under two rails and the one between the rails
    D.

    none of these.

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  7.  

    In railways a triangle is mainly provided for
    8. A.

    diverting trains from the main line to branch line
    B.

    crossing over between parallel tracks
    C.
    changing direction of engines through 180°
    D.

    shunting wagons in yards.

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  8. A kink is made in stock rails, ahead of the toe of switch at a distance of

    9. A.

    10 cm
    B.

    15 cm
    C.

    20 cm
    D.

    30 cm

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  9. If L is length of a rail and R is the radius of a curve, the versine h for the curve, is
    10. A.

    a = \( \frac { L } { 4R } \)
    B.

    a = \( \frac { L ^2} { 4R } \)
    C.

    h = \( \frac { L ^2} { 8R } \)
    D.

    h = \( \frac { L ^2} { 16R } \)
    E.

    h = \( \frac { L ^2} { 6R } \)

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  10. Rails are bent to correct curvature if the degree of curve, is more than

    11. A.

    1°
    B.

    2°
    C.

    3°
    D.

    4°
    E.
    6°

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