If b is the wheel track of a vehicle and h is the height of centre of gravity above road surface, then to avoid overturning and lateral skidding on a horizontal curve, the centrifugal ratio should always be________________?

Related Mcqs:

1. On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be_________________?

   A. more than the pressure on inner wheels
   B. less than the pressure on inner wheels
   C. equal to the pressure on inner wheels

2. When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment to be given is________________?

   A. seal coat
   B. tack coat
   C. prime coat
   D. spray of emulsion

3. The transition curve used in the horizontal alignment of highways as per IRC recommendations is_______________?

   A. spiral
   B. lemniscate
   C. cubic parabola
   D. any of the above

4. If ruling gradient is I in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be_________________?

   A. 3 %
   B. 4%
   C. 5 %
   D. 6%

5. The percentage compensation in gradient for ruling gradient of 4% and horizontal curve of radius 760 m is____________________?

   A. 0.1 %
   B. 1 %
   C. 10%
   D. no compensation

6. When the path travelled along the road surface is more than the circumferential movement of the wheels due to rotation, then it results in______________?

   A. slipping
   B. skidding
   C. turning
   D. revolving

7. The maximum width of a vehicle as recommended by IRC is________________?

   A. 1.85m
   B. 2.44 m
   C. 3.81 m
   D. 4.72 m

8. Length of a vehicle affects________________?

   A. width of traffic lanes
   B. extra width of pavement and minimum turning radius
   C. width of shoulders and parking facilities
   D. clearance to be provided under structures such as overbridges, under-bridges etc

9. If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi¬mum capacity of a traffic lane at a speed of 10 m/sec is________________?

   A. 1500 vehicles per hour
   B. 2000 vehicles per hour
   C. 2500 vehicles per hour
   D. 3000 vehicles per hour

10. For a constant value of coefficient of lateral friction, the value of required super-elevation increases with_______________?

    A. increase in both speed and radius of curve
    B. decrease in both speed and radius of curve
    C. increase in speed and with decrease in radius of curve
    D. decrease in speed and with increase in radius of curve