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GATE 2019 Transportation Engineering Day 3 Quiz

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Question 1

The value of lateral friction or side friction used in the design of horizontal curve as per Indian Roads Congress guidelines is

Question 2

According to IRC specification, the difference between the maximum super elevation (in %) for plain terrain and hilly terrain not bounded by snow is

Question 3

If ruling gradient is 1 in 25, what will be the compensated grade for a curve of radius 100 m?

Question 4

A crest vertical cruve joins two gradients of +3% and –2% for a design speed of 80 km/h and the corresponding stopping sight distance of 120m. The height of driver’s eye and the object above the road surface are 1.20 m and 0.15 m respectively. The curve length to be provided is

Question 5

A valley curve is formed by a descending grade of 1 in 20 meeting an ascending grade of 1 in 30. What is the length of valley curve (in m) to fulfill comfort condition for a design speed of 85 kmph?
[Assume allowable rate of change of centrifugal acceleration, C = 0.65 m/sec3]

Question 6

A summit curve is formed at the intersection of a 3% up gradient and 5% down gradient. To provide a stopping distance of 128 m, the length of summit curve needed will be
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Sep 29ESE & GATE CE