Civil Engineering MCQAE Level Civil Engineering
The product of inertia of a plane area about two centroidal axes becomes zero when:
Engineering MechanicsProduct of InertiaMEDIUM
Choose the correct answer
A
At least one of the axes is an axis of symmetry
B
The area is painted black
C
The loading is purely hydraulic
D
The body is moving with constant velocity
Correct Answer
A. At least one of the axes is an axis of symmetry
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For an area symmetric about an axis, positive and negative products cancel about centroidal axes.
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