Home » Strength Of Materials » Strength Of Materials Miscellaneous » Question

Strength Of Materials Miscellaneous

Easy Questions
Moderate Questions
Difficult Questions

Strength Of Materials

Strength Of Materials Miscellaneous
  1. The second moment of a circular area about the diameter is given by (D is the diameter)
    1. πD4
      4
    2. πD4
      16
    3. πD4
      32
    4. πD4
      64
Correct Option: D

Polar Moment of Inertia perpendicular to the plane of paper.

Ip =
πD4
32

Now, applying “Perpendicular Axes” Theorem.
Ix + Iy = Ip
⇒ 2Ix = Ip
⇒ Ix =
Ip
 [ ∵ Ix = Iy ]
2

=
πD4
64


Your comments will be displayed only after manual approval.