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GATE Exam Questions

Q1: Permissible bending tensile stress in high yield strength deformed bars of grade 415 N/mm2 in a beam is :

A 190 N/mm2

B 230 N/mm2

C 140 N/mm2

D None of the above

ANS:B - 230 N/mm2

Allowable stresses for bars have been standardized by IS-1786 as:

1) Ffor Fe 415 grade, permissible tensile stress = 230 N/mm2 & permissible compressive stress = 190 N/mm2.
2) For Fe 500 grade, permissible tensile stress = 275 N/mm2.



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