Question

The product of moment of inertia is the sum of _____________ and _________________ it can be used in the calculations of moments of inertia for an area about inclined axis.

(a) Area and volume

(b) Volume and linear distance

(c) Moment of inertia at centroid and the product of the area and del dx and del dy

(d) Moment of inertia at base and the product of the area and del dx and del dy

I had been asked this question in an online interview.

This key question is from Moments of Inertia for an Area About Inclined Axis in chapter Moments of Inertia of Engineering Mechanics

Answer 1

Right choice is (d) Moment of inertia at base and the product of the area and del dx and del dy

To explain: The product of the moment of inertia is required as to design the structure of the body. This means that the designing of the body is majorly done by the help of the determination of the product of the moment of Inertia.