SSC RSMSSB JE Mock Test 2024 Strength of Materials Torsion of Shaft Moment of Inertia about Polar Axis
Select the correct statement regarding the 1st and 2nd moment of area of a circular lamina with radius ‘R’.
1
1st moment of area is may be either –ve or +ve based on the chosen reference axes, but 2nd moment of area is always +ve.
2
1st moment of area is always +ve and 2nd moment of area is always −ve.
3
1st moment of area is always −ve and 2nd moment of area is always +ve.
4
1st moment of area and 2nd moment of area are always +ve.
5
Question Not Attempted