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Civil Engineering :: Highway Engineering

  1. If V is the velocity in km.p.h., t the brake reaction time in seconds and η the efficiency of the brakes, the stopping distance S of the vehicle, is


  2. During last phase of the reconnaissance, details of the grade line is recorded on 2 metre poles to indicate

  3. A.
    direction of the proposed alignment
    B.
    distance between the previous and forward pegs
    C.
    relative elevations of pegs
    D.
    all the above.

  4. Concrete pavement is provided if daily traffic per lane exceeds

  5. A.
    500 tonnes
    B.
    750 tonnes
    C.
    1000 tonnes
    D.
    1250 tonnes
    E.
    1300 tonnes

  6. If d is the economic designed depth of a slab, the thickness of the cement concrete pavement slab at interior, is kept

  7. A.
    1.275 d
    B.
    1.125 d
    C.
    0.85 d
    D.
    0.75 d
    E.
    0.60 d

  8. If the elevations along a road increase, the slope of the road along the longitudinal direction, is known as

  9. A.
    gradient
    B.
    grade
    C.
    positive grade
    D.
    negative grade.

  10. Pick up the incorrect statement from the following:

  11. A.
    Highways are always constructed in straight line
    B.
    Highways may be provided horizontal curves
    C.
    Highways may be provided vertical curves
    D.
    Highways may be provided both horizontal and vertical curves.

  12. If the width of carriage way is 12.5 metres, outer edge 50 cm higher than the inner edge, the required super elevation is

  13. A.
    50 cm
    B.
    1 in 25
    C.
    1 in 400
    D.
    1 in 40
    E.
    1 in 24

  14. In cement concrete pavements, tensile stress is due to :

  15. A.
    bending or deflection under wheel loads
    B.
    difference in temperature of the top and bottom of pavement
    C.
    contraction of slab during falling temperature
    D.
    all the above.

  16. If L is the length of the transition curves provided on either side of a circular curve of radius R, the maximum angle of deflection with tangent for the junctions of the transition curve and circular curve, is

  17. A.
    L/R
    B.
    L/2R
    C.
    L/3R
    D.
    L/4R
    E.
    none of these.

  18. Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2, is

  19. A.
    17.0 cm
    B.
    25.5 cm
    C.
    34.0 cm
    D.
    42.5 cm
    E.
    50.0 cm