Select the correct statement_________________?
(A) Psychological extra widening depends on the number of traffic lanes.
(B) Mechanical extra widening depends on the speed of vehicle.
(C) Psychological extra widening depends on the length of wheel base.
(D) Psychological extra widening depends on the speed of vehicle
The absolute minimum radius of curve for safe operation for a speed of 110 kmph is______________?
(A) 110 m
(B) 220 m
(C) 440 m
(D) 577 m
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
The maximum design gradient for vertical profile of a road is______________?
(A) ruling gradient
(B) limiting gradient
(C) exceptional gradient
(D) minimum gradient
In case of hill roads, the extra widening is generally provided______________?
(A) equally on inner and outer sides of the curve
(B) fully on the inner side of the curve
(C) fully on the outer side of the curve
(D) one-fourth on inner side and three-fourth on outer side of the curve
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
The attainment of super elevation by rotation of pavement about the inner edge of the pavement_______________?
(A) is preferable in steep terrain
(B) results in balancing the earthwork
(C) avoids the drainage problem in flat terrain
(D) does not change the vertical alignment of road
As per IRC recommendations, the maximum limit of super elevation for mixed traffic in plain terrain is_______________?
(A) 1 in 15
(B) 1 in 12.5
(C) 1 in 10
(D) equal to camber
Highway facilities are designed for_________________?
(A) annual average hourly volume
(B) annual average daily traffic
(C) thirtieth highest hourly volume
(D) peak hourly volume of the year
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