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Question
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 5N/mm2 and the modular ratio is 18, then the stress developed in the steel will be:
A.
130 N/mm2
B.
135/Nmm2
C.
160 N/mm2
D.
180 N/mm2
Answer ( Option B)

135/Nmm2

Solution

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