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UPSC Civil Service Exam Questions

Q1:

Which one of the following statements is correct with respect to rigid pavements ?

A Vertical stresses are transmitted to the lower layer through the points of contact in granular structure.

B Vertical compressive stress is maximum on the pavement surface directly under the wheel load.

C Lower layers have to take lesser magnitudes of stress

D Stresses on rigid pavements are transmitted to a wider area of sub grade.

ANS:B - Vertical compressive stress is maximum on the pavement surface directly under the wheel load.

For pavements, compressive load decreases with depth.

So, the answer should be both B and C.



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