Moment Of Inertia - Moment Of Inertia objective questions and answers

21.  The unit of moment of inertia of an area,

   A. kg/m

   B. kg/m²

   C. m⁴

   D. m³

22.  Moment of inertia of a squares of side b about an axis through its centre of gravity, is

   A. b³/4

   B. b⁴/12

   C.b⁴4/3

   D. b⁴/8

23.  The unit of inertia of mass,

   A. kg/m

   B. kg/m²

   C. kg-m²

   D. m³

24.  Polar moment of inertia is

   A. Same as moment of inertia

   B. Applicable to masses whereas moment of inertia is applicable to area only

   C. The moment of inertia for an area relative to a linear or axis perpendicular to the plane of the area

   D. The moment of inertia for an area relative to a line or axis parallel to the centroidal axis

25.  The moment of inertia of a thin spherical shell is

   A. Mr⁴/2

   B.Mr²

   C.2/3 Mr²

   D. 2/5 Mr²

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