Mechanics Of Solids (3130608) MCQs

MCQs of Moment of Inertia & Mass Moment of Inertia

Showing 1 to 7 out of 7 Questions
1.

The unit of Moment of Inertia of a body, is

(a)

m
(b)

m2
(c)

m3
(d)

m4
Answer:

Option (d)

2.

M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

(a)

π64D4+d4

(b)

π32D4-d4

(c)

π32D4+d4

(d)

π32D4×d4

Answer:

Option (b)

3.

The units of moment of inertia of an area, are

(a)

kg / m
(b)

kg / m2
(c)

m4
(d)

m3
Answer:

Option (c)

4.

The inherent property of a body which offers reluctance to change its state of rest or uniform motion, is

(a)

weight
(b)

mass
(c)

inertia 
(d)

momentum
Answer:

Option (c)

5.

The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is

(a)

1/4
(b)

1/2
(c)

3/4
(d)

2
Answer:

Option (a)

6.

The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

(a)

437.5 cm4
(b)

337.5 cm4
(c)

237.5 cm4
(d)

137.5 cm4
Answer:

Option (d)

7.

The moment of inertia of the shaded portion of the area shown below figure about the X-axis is

 

(a)

229.34 cm4
(b)

329.34 cm4
(c)

429.34 cm4
(d)

529.34 cm4
Answer:

Option (c)

Showing 1 to 7 out of 7 Questions