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Civil Engineering Objective Questions { Highway Engineering }

57.  Before providing super-elevation on roads, the portion of the carriageway between the crown and the outer edge is made
A. to have a reduced fall
B. horizontal
C. to have slope of the camber on the other half of the carriageway
D. none of these,

58. Pick up the incorrect statement from the following. The super-elevation on roads is
A. directly proportional to width of pavement
B. directly proportional to velocity of vehicles
C. inversely proportional to acceleration due to gravity
D. inversely proportional to the radius of curvature.

59.  The maximum safe speed on roads, depends on the
A. type of the highway
B. type of road surface
C. type of curves
D. all the above.

60.  Non-passing sight distance along a road is the longest distance at which the driver of a moving vehicle, may see an obstacle on the pavement
A. 10 cm high
B. 25 cm high
C. 50 cm high
D. 100 cm high

61.  The ability of a driver to stop the vehicle moving with the designed speed, depends upon :
A. perception time
B. brake reaction time
C. efficiency of the brakes
D. all the above.

62.  For a vehicle moving with a speed of 80 km per hour, the brake reaction time, in ordinary cases, is
A. 1 sec
B. 1.5 sec 0.11
C. 2.0 sec
D. 2.5 sec

63. The efficiency of the brakes of a vdhicle depends upon
A. condition of road surface
B. condition of the types
C. presence of the show moisture
D. all the above.

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