The function of an expansion joint in rigid pavements is to______________?
A. relieve warping stresses
B. relieve shrinkage stresses
C. resist stresses due to expansion
D. allow free expansion
The shape of the camber, best suited for cement concrete pavements, is_______________?
A. straight line
B. parabolic
C. elliptical
D. combination of straight and parabolic
The stopping sight distance depends upon_______________?
A. total reaction time of driver
B. speed of vehicle
C. efficiency of brakes
D. all of the above
Coefficient of friction is less when the pavement surface is________________?
A. rough
B. dry
C. smooth and dry
D. smooth and wet
Camber in the road is provided for_______________?
A. effective drainage
B. counteracting the centrifugal force
C. having proper sight distance
D. none of the above
A. stopping distance
B. two times the stopping distance
C. half the stopping distance
D. three times the stopping distance