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Civil Engineering Objective Questions { Highway Engineering }

64. The distance travelled by a moving vehicle during perception and brake reaCtion times, is known as
A. sight distance
B. stopping distance
C. lag distance
D. none of these.

65.  Minimum stopping distance for moving vehicles on road with a design speed of 80 km/hour, is
A. 80 m
B. 100 m
C. 120 m
D. 150 m

66.  If Vis the velocity in km.p.h., t the brake reaction time in seconds and Ti the efficiency of the brakes, the stopping distance S of the vehicle, is
A. 0.28V2t +
B.V0.01 ri
C. 0.28V t + 0.01V2i
D. 0.28V t + 0.1 172

67.  Pick up the incorrect statement from the following :
A. Highways are always constructed in straight line
B. Highways may be provided horizontal curves
C. Highways may be provided vertical curves
D. Highways may be provided both horizontal and vertical curves.

68.  Horizontal curves on highways are provided
A. to break the monotony of driving
B. to discourage the tendency to increase speed
C. to decrease the mental strain on drivers
D. all the above.

69.  Design of hOrizontal curves on highways, is based on
A. design speed of vehicles
B. permissible friction on the road surface
C. permissible centrifugal ratio
D. all the above.

70.  The type of curves generally provided on highways, is
A. critical curve
B. transition curve
C. vertical curve
D. all the above.

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