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.Management Sciences
Category: Highway Engineering
As per IRC recommendations, the average level of illumination on important roads carrying fast traffic is______________?
A. 10 lux
B. 15 lux
C. 20 lux
D. 30 lux
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
For rapid curing cutbacks, the oil used is______________?
A. gasoline
B. kerosene oil
C. light diesel
D. heavy diesel
For a constant value of coefficient of lateral friction, the value of required super-elevation increases with_______________?
A. increase in both speed and radius of curve
B. decrease in both speed and radius of curve
C. increase in speed and with decrease in radius of curve
D. decrease in speed and with increase in radius of curve
On a horizontal curve if the pavement is kept horizontal across the alignment, then the pressure on the outer wheels will be_________________?
A. more than the pressure on inner wheels
B. less than the pressure on inner wheels
C. equal to the pressure on inner wheels
Reaction time of a driver_______________?
A. increases with increase in speed
B. decreases with increase in speed
C. is same for all speeds
D. none of the above
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
Bitumen of grade 80/100 means______________?
A. its penetration value is 8 mm
B. its penetration value is 10 mm
C. its penetration value is 8 to 10 mm
D. its penetration value is 8 to 10 cm
The maximum allowable Los Angeles abrasion value for high quality surface course is_______________?
A. 10%
B. 20 %
C. 30%
D. 45 %
Penetration test on bitumen is used for determining its_____________?
A. grade
B. viscosity
C. ductility
D. temperature susceptibility
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