Speed regulations on roads is decided on the basis of 60 percentile cumulative f

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Question
Speed regulations on roads is decided on the basis of
Options
A. 60 percentile cumulative frequency
B. 75 percentile cumulative frequency
C. 80 percentile cumulative frequency
D. 85 percentile cumulative frequency.

Correct Answer

85 percentile cumulative frequency.

Highway Engineering problems

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1. Parapet walls along hill roads, are provided
Options
A. to retain the back filling
B. to prevent the hill from sliding
C. to prevent the wheels of the vehicle from coming on the retaining wall
D. none of these.

3. If the velocity of moving vehicles on a road is 24 km/per hour, stopping distance is 19 metres and average length of vehicles is 6 metres, the basic capacity of lane, is
Options
A. 500 vehicles per hour
B. 700 vehicles per hour
C. 1000 vehicles per hour
D. 1250 vehicles per hour

8. A gradient along which the vehicle does not require any tractive effort to maintain a specified speed, is known as
Options
A. ruling gradient
B. pushing gradient
C. floating gradient
D. minimum gradient

9. Intermediate catch water drains are provided only, if
Options
A. catchment area of the watershed above road is large
B. intensity of rainfall is heavy
C. single catch water drain is inadequate
D. all the above.

10. If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is
Options
A. 32.44 km/hour
B. 42.44 kg/hour
C. 52.44 km/hour
D. 62.44 km/hour
E. 72.44 km/hour

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