The maximum number of vehicles beyond which the rotary may not function efficiently is______________?
(A) 500 vehicles per hour
(B) 500 vehicles per day
(C) 5000 vehicles per hour
(D) 5000 vehicles per day
The entrance and exit curves of a rotary have_______________?
(A) equal radii and equal widths of pavement
(B) equal radii but pavement width is more at entrance than at exit curve
(C) equal pavement widths but radius is more at entrance curve than at exit curve
(D) different radii and different widths of pavement
Centre line markings are used_____________?
(A) to designate traffic lanes
(B) in roadways meant for two way traffic
(C) to indicate that overtaking is not permitted
(D) to designate proper lateral placement of vehicles before turning to different directions
When two equally important roads cross roughly at right angles, the suitable shape of central island is________________?
(A) circular
(B) elliptical
(C) tangent
(D) turbine
The particular places where pedestrians are to cross the pavement are properly marked by the pavement marking known as________________?
(A) stop lines
(B) turn markings
(C) crosswalk lines
(D) lane lines
The provision of traffic signals at intersections______________?
(A) reduces right angled and rear end collisions
(B) increases right angled and rear end collisions
(C) reduces right angled collisions but may increase rear end collisions
(D) reduces rear end collisions but may increase right angled collisions
“Dead Slow” is a______________?
(A) regulatory sign
(B) warning sign
(C) informatory sign
(D) none of the above
In CBR test the value of CBR is calculated at_______________?
(A) 2.5 mm penetration only
(B) 5.0 mm penetration only
(C) 7.5 mm penetration only
(D) both 2.5mm and 5.0 mm penetrations
Percentage of free carbon in bitumen is______________?
(A) more than that in tar
(B) less than that in tar
(C) equal to that in tar
(D) none of the above
If aggregate impact value is 20 to 30 percent, then it is classified as_______________?
(A) exceptionally strong
(B) strong
(C) satisfactory for road surfacing
(D) unsuitable for road surfacing