The absolute minimum radius of curve for safe operation for a speed of 110 kmph is______________?

Related Mcqs:

1. If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in meters is given by the expression_________________?

   A. 0.38 N V3/2
   B. 0.38 (NV3)”2
   C. 3.8 NV”2
   D. 3.8 (NV3)”2

2. To calculate the minimum value of ruling radius of horizontal curves in plains, the design speed is given by_________________?

   A. 8 kmph
   B. 12kmph
   C. 16kmph
   D. 20 kmph

3. 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%

4. 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

5. With increase in speed of the traffic stream, the minimum spacing of vehicles________________?

   A. increases
   B. decreases
   C. first decreases and then increases after reaching a minimum value at optimum speed
   D. first increases and then decreases after reaching a maximum value at optimum speed

6. The minimum design speed for hairpin bends in hill roads is taken as_______________?

   A. 20 kmph
   B. 30 kmph
   C. 40 kmph
   D. 50 kmph

7. The effect of grade on safe overtaking sight distance is_______________?

   A. to increase it on descending grades and to decrease it on ascending grades
   B. to decrease it on descending grades and to increase it on ascending grades
   C. to increase it on both descending and ascending grades
   D. to decrease it on both descending and ascending grades

8. 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________________?

   A. less than b/2h and greater than co-efficient of lateral friction
   B. less than b/2h and also less than co-efficient of lateral friction
   C. greater than b/2h and less than co-efficient of lateral friction
   D. greater than b/2h and also greater than coefficient of lateral friction

9. 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

10. Which of the following shapes is preferred in a valley curve ?

    A. simple parabola
    B. cubic parabola
    C. spiral
    D. lemniscate