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UPSC Civil Service Exam Questions - Engineering

Q1:

The radius of curvature of an ideal transition curve should be

A inversely proportional to its length from the beginning

B directly proportional to its length from the beginning

C proportional to the speed of the vehicle

D proportional to the superelevation

ANS:A - inversely proportional to its length from the beginning

e +f = V^2/r
A is correct
L=v^2/r