engineering recuitment DDA JE Civil 2023 Mock Test Engineering Mechanics Moment of Inertia and Centroid
The condition for identifying the two perpendicular axes X and Y of a section as principal axes is:
1
Product of moment of Inertia (IX : IY) is zero
2
Moment of inertia about the axes are equal (IX = IY)
3
Product of moment of Inertia (IxY) is zero
4
Sum of squares of moment of Inertia about the axes Ix2 + Iy2 is zero