Ten MCQ’s on Moment of Inertia
Question.1. Moment of inertia of any section about an axis passing through its C.G is
(a) Maximum
(b) Minimum
(c) Depends upon the dimensions of the section
(d) Depends upon the shape of the section
Question.2. The unit of moment of inertia is
(a) L
(b) 
(c) 
(d) 
Question.3. The moment of inertia of a rectangle base ‘b’ and depth ‘d’ about the base will be
(a) 
(b) 
(c) 
(d) 
Question.4. The moment of inertia of a circular section of diameter ‘d’ about its centroidal axis is given by
(a) 
(b) 
(c) 
(d) 
Question.5. The moment of inertia of a triangular section of base ‘b’ and height’h’ about an axis passing through its C.G. and parallel to the base is
(a) 
(b) 
(c) 
(d) 
Question.6. The polar moment of inertia of a circular section is about
(a) X-X axis
(b) Y-Y axis
(c) Z-Z axis
(d) Neutral axis
Question.7. The moment of inertia of a triangular section of base ‘b’ and height ‘h’ about an axis passing through its base is ……….. times the moment of inertia about an axis passing through its C.G. and parallel to the base
(a) 9
(b) 4
(c) 2
(d) 3
Question.8. The moment of inertia of a body is always minimum with respect to its
(a) Base
(b) Centroidal axis
(c) Vertical axis
(d) Horizontal axis
Question.9. The moment of inertia of a circular section of base ‘b’ and height ‘h’ about an axis passing through its vertex and parallel to base is
(a) 
(b) 
(c) 
(d)
Question.10. The moment of inertia of a circular section about an axis perpendicular to the section is
(a)
(b)
(c)
(d) 
Answers
1. (b) 2. (d) 3. (d) 4. (c) 5. (a) 6. (c) 7. (d) 8. (b) 9.(d) 10. (c)