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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


  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.


  5. In a diamond crossing, number of noses are

  6. A.

    2

    B.

    3

    C.

    4

    D.

    6


  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.


  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.


  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


  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


  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


  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.