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UPSC Civil Service Exam Questions

Q1:
What is value of stress at the base CC for the bar shown in the given figure ?

A 16.67 N / mm2

B 13.33 N / mm2

C 26.67 N / mm2

D 30 N / mm2

ANS:D - 30 N / mm2

At level B-B 400 mm ==> 20 kn + 2.5 kn = 22.5 kn /1500mm2 = 15 mpa.
At level C-C stresses will increse double height 15 mpa*2 = 30 mpa.



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