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UPSC Civil Service Exam Questions - Engineering

Q1:

A parabolic vertical curve is to be set out connecting two uniform grades of +0.6% and +.0%. The rate of change of grade is to be 0.06% per 30 m. The length of the curve will be

A 66 2/3 m

B 133 1/3 m

C 200 M

D 266 2/3 m

ANS:A - 66 2/3 m

0 per cent or 1 per cent? Anyone, please clarify.

I think it should be 1 per cent.