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Civil Engineering :: Highway Engineering

  1. Minimum thickness of the base of a flexible pavement, is

  2. A.
    10 cm
    B.
    15 cm
    C.
    20 cm
    D.
    25 cm
    E.
    30 cm.

  3. One-way streets are generally provided in crowded cities as, these

  4. A.
    are inexpensive means of traffic flow
    B.
    reduce delays to vehicles
    C.
    permit higher speed
    D.
    reduce the number of accidents
    E.
    all the above.

  5. The perpendicular offset from the tan-get to the central point of the circular curve, is

  6. A.
    R sin θ/2
    B.
    R cos θ/2
    C.
    R (1 - cos θ/2)
    D.
    R (1 - sin θ/2)
    E.
    none of these.

  7. An Executive Engineer of roads, executes works under direct control of

  8. A.
    Superintending Engineer
    B.
    Secretary to the Govt
    C.
    Chief Engineer
    D.
    None of these.

  9. Newly constructed pavement with ordinary Portland cement attains its working strength after

  10. A.
    7 days
    B.
    14 days
    C.
    21 days
    D.
    28 days
    E.
    42 days

  11. Curves in the same direction separated by short tangents, are called

  12. A.
    simple circular curves
    B.
    compound curves
    C.
    transition curves
    D.
    broken-back curves.
    E.
    None of these.

  13. When an up gradient of a highway meets a downgrade, the vertical curve provided, is known as

  14. A.
    valley curve
    B.
    sag curve
    C.
    summit curve
    D.
    all the above.

  15. If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is

  16. A.
    32.44 km/hour
    B.
    42.44 kg/hour
    C.
    52.44 km/hour
    D.
    62.44 km/hour
    E.
    72.44 km/hour

  17. The maximum distance of the apex of a vertical curve of length L from the point of intersection of two grades + g1%, and - g2% (g1 > g2), is


  18. The wall constructed for the stability of a back filling portion of a road on the down hill side, is known as

  19. A.
    retaining wall
    B.
    breast wall
    C.
    parapet wall
    D.
    all the above.