The effective depth of a singly reinforced rectangular beam is 300 mm. The section is over reinforced and the neutral axis is 120 mm below the top. If the maximum stress attained by concrete is 5 N/mm² and the modular ratio is 18, then the stress developed in the steel will be ?

R

Rakesh Kumar • 27.45K Points
Instructor II

Q. The effective depth of a singly reinforced rectangular beam is 300 mm. The section is over reinforced and the neutral axis is 120 mm below the top. If the maximum stress attained by concrete is 5 N/mm² and the modular ratio is 18, then the stress developed in the steel will be ?

(A) 130 N/mm²

(B) 135 N/mm²

(C) 160 N/mm²

(D) 180 N/mm²

Correct : Option (B)

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