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Civil Engineering :: Railways

  1. Heel divergency, the distance between the running faces of stock rail and gauge face of tongue rail, as recommended for Indian B.G. tracks, is

  2. A.

    100 mm

    B.

    119 mm

    C.

    125 mm

    D.

    155 mm

    E.

    135 mm


  3. Type of switch rails generally adopted for modern track, is

  4. A.

    straight switch

    B.

    curved switch

    C.

    loose heel switch

    D.
    bent switch.

  5. If sleeper density is M + 7 for 13 m rails, the minimum depth of ballast under wooden sleepers (25 cm x 13 cm), is

  6. A.

    15 cm

    B.

    20 cm

    C.

    25 cm

    D.

    30 cm

    E.

    36 cm


  7. By interchanging gibs and cotters of a pot sleeper, gauge may be slackened by

  8. A.

    1.2 mm

    B.

    2.2 mm

    C.

    3.2 mm

    D.

    4.2 mm

    E.

    5.0 mm


  9. Composite sleeper index determines

  10. A.

    number of sleepers per rail length

    B.

    suitability of wooden sleepers

    C.

    permissible stresses in steel sleepers

    D.

    none of these


  11. If S is cant deficiency in centimetres and V is maximum permissible speed in km p.h,, the maximum length of transition curves, is

  12. A.

    \( \frac { S.V } { 13.6} \)

    B.

    \( \frac { S.V } { 19.8} \)

    C.

    \( \frac { S.V } { 12.7} \)

    D.

    \( \frac { S.V } { 16.8} \)


  13. Indian Railways detects the rail flow by

  14. A.

    Mitsubish Rail flow dector

    B.

    Soni Rail flow dector

    C.

    Audi-gauge Rail flow detector

    D.

    Kraut Kramer Rail flow detector.


  15. The rail section which is not used on Indian Broad Gauge tracks, is

  16. A.

    35 R

    B.

    40 R

    C.

    45 R

    D.

    55 R


  17. Ballast packed below and around the sleepers to transfer the load from sleepers to formation, generally consists of

  18. A.

    broken stones

    B.
    gravels
    C.

    moorum

    D.

    all the above.


  19. A wing rail is renewed or reconditioned if its maximum vertical wear is

  20. A.

    9.5 m

    B.

    7.5 m

    C.

    5.5 m

    D.

    5.0 m