The value of ruling gradient in plains as per IRC recommendation is______________?
(A) 1 in 12
(B) 1 m 15
(C) 1 in 20
(D) 1 in 30
If an ascending gradient of 1 in 50 meets a descending gradient of 1 in 50, the length of summit curve for a stopping sight distance of 80 m will be_______________?
(A) zero
(B) 64m
(C) 80m
(D) 60m
Enoscope is used to find______________?
(A) average speed
(B) spot speed
(C) space-mean speed
(D) time-mean speed
In case of summit curves, the deviation angle will be maximum when_______________?
(A) an ascending gradient meets with another ascending gradient
(B) an ascending gradient meets with a descending gradient
(C) a descending gradient meets with another descending gradient
(D) an ascending gradient meets with a level surface
The camber of road should be approximately equal to___________________?
(A) longitudinal gradient
(B) two times the longitudinal gradient
(C) three times the longitudinal gradient
(D) half the longitudinal gradient
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
Which of the following shapes is preferred in a valley curve ?
(A) simple parabola
(B) cubic parabola
(C) spiral
(D) lemniscate
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%
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
Equivalent factor of passenger car unit (PCU) for a passenger car as per IRC is_____________?
(A) 1.0
(B) 2.0
(C) 0.5
(D) 10