Civil Engineering MCQCivil Engineering (Shared)
In working stress method, modular ratio m is given by:
Concrete Technology & RCCModular ratioMEDIUM
Choose the correct answer
A
5000 sqrt(fck)
B
280/(3 sigma_cbc)
C
0.87 fy/fck
D
L/500 + D/30
Correct Answer
B. 280/(3 sigma_cbc)
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IS 456 gives m = 280/(3 sigma_cbc), where sigma_cbc is permissible compressive stress in concrete. Reference: Clause B-1.3 / Annex B | Page: verify from your official BIS copy/PDF pagination
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