Civil Engineering MCQAE Level Civil Engineering
In the shear formula τ=VQ/(Ib), Q is:
Strength of MaterialsShear Formula Q DefinitionEASY
Choose the correct answer
A
Moment of inertia of entire section
B
First moment of area above the section about NA
C
Second moment of area below section
D
Polar moment of inertia
Correct Answer
B. First moment of area above the section about NA
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Q = first moment of area above (or below) the point about the neutral axis = A'ȳ'.
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