1.

A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm2 . If the moment of inertia of the beam is 640 cm4 , the overall depth of the beam is

A. 10 cm
B. 12 cm
C. 15 cm
D. 18 cm
Answer» B. 12 cm


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