Highway Engineering

151) Reflection cracking is observed in

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bituminous overlay over cement concrete surface

152) The shape of the camber, best suited for cement concrete pavements, is

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straight line

153) Coefficient of friction is less when the pavement surface is

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smooth and wet

154) When the path travelled along the road surface is more than the circumferential movement of the wheels due to rotation, then it results in

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skidding

155) On a single lane road with two traffic, the minimum stopping distance is equal to

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two times the stopping distance

156) The desirable length of overtaking zone as per IRC recommendation is equal to

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five times the overtaking distance

157) For the design of superelevation for mixed traffic conditions, the speed is reduced by

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25%

158) Select the correct statement.

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Psychological extra widening depends on the speed of vehicle

159) The percentage compensation in gradient for ruling gradient of 4% and horizontal curve of radius 760 m is

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no compensation

160) If ruling gradient is 1 in 20 and there is also a horizontal curve of radius 76 m, then the compensated grade should be

Subject Notes

Objective Box

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