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Civil Engineering :: Railways

  1. If D is the distance between parallel tracks G is the gauge and α is angle of crossings, the distance between theoretical noses of two crossings measured parallel to tracks, is

  2. A.
    (D - G - G sec α) cot α
    B.

    (D - G + G sec α) cot α

    C.

    (D - G - G sec α) tan α

    D.

    (D + G + G sec α) cot α

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  3. Minimum composite sleeper index for wooden sleepers used over bridge girders, is

  4. A.

    1455

    B.

    1355

    C.

    1255

    D.

    1155

    E.

    none of these.

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  5. In a diamond crossing, number of noses are

  6. A.

    2

    B.

    3

    C.

    4

    D.

    6

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  7. If the stock rails are B.H. rails, the type of switch generally provided, is

  8. A.

    articulated

    B.

    undercut

    C.

    over riding

    D.

    straight cut.

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  9. Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known

  10. A.

    buckling

    B.

    hogging

    C.

    creeping

    D.

    none of these.

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  11. On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is

  12. A.
    29.8 to 37.3 kg/m
    B.

    32.5 to 42.5 kg/cm

    C.
    44.7 to 56.8 kg/m
    D.

    none of these

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  13. If D is the distance between the parallel sidings and α is the angle of crossing, the distance between the noses of crossing measured parallel to the main track, is

  14. A.

    D tan α

    B.

    D sec α

    C.

    D cosec α

    D.

    D cot α

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  15. On B.G. tracks the distance of outer signal from station limit is kept

  16. A.

    510 m

    B.

    520 m

    C.

    530 m

    D.

    540 m

    E.

    550 m

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  17. The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known

  18. A.

    hogging

    B.

    buckling

    C.

    creeping

    D.

    none of these.

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