Center of Gravity and Moment of Inertia MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Center of Gravity and Moment of Inertia, a fundamental topic in the field of Mechanics of Materials. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Center of Gravity and Moment of Inertia MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Center of Gravity and Moment of Inertia mcq questions that explore various aspects of Center of Gravity and Moment of Inertia problems. Each MCQ is crafted to challenge your understanding of Center of Gravity and Moment of Inertia principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanics of Materials tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Center of Gravity and Moment of Inertia MCQs are your pathway to success in mastering this essential Mechanics of Materials topic.

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Center of Gravity and Moment of Inertia MCQs | Page 2 of 5

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Q11.
What will be the moment of inertia of the given rectangular section about an horizontal axis through C.G.?

a.

350 mm⁴

b.

379mm⁴

c.

416mm⁴

d.

500mm⁴

Discuss
Answer: (c).416mm⁴
Q12.
What will be the moment of inertia of the given triangle about the base?

a.

20.33 mm⁴

b.

21.33 mm⁴

c.

24.33 mm⁴

d.

22.33 mm⁴

Discuss
Answer: (b).21.33 mm⁴
Q13.
What will be the moment of inertia of the given triangle about an axis passing through C.G and parallel to base?

a.

6.1 mm⁴

b.

7.1 mm⁴

c.

8.1 mm⁴

d.

7.56 mm⁴

Discuss
Answer: (b).7.1 mm⁴
Q14.
What is the product of inertia of the given following section?

a.

50mm⁴

b.

625mm⁴

c.

125mm⁴

d.

250mm⁴

Discuss
Answer: (b).625mm⁴
Q15.
The point through which the whole weight of the body acts is called _____________

a.

Inertial point

b.

Center of gravity

c.

Centroid

d.

Central point

Discuss
Answer: (b).Center of gravity
Q16.
The point at which the total area of a plane figure is asssumed to be concentrated is called ____________

a.

Centroid

b.

Centre of gravity

c.

Central point

d.

Inertial point

Discuss
Answer: (a).Centroid
Q17.
Where will be the centre of gravity of a uniform rod lies?

a.

At its end

b.

At its middle point

c.

At its centre of its cross sectional area

d.

Depends upon its material

Discuss
Answer: (b).At its middle point
Q18.
Where the center of gravity of a circle lies?

a.

At its centre

b.

Anywhere on its radius

c.

Anywhere on its circumference

d.

Anywhere on its diameter

Discuss
Answer: (a).At its centre
Q19.
Where will be the center of gravity of an I section will be if the dimension of upper web is 2x10cm, lower web is 2×20 and that of flange is 2x15cm If the y-axis will pass through the center of the section?

a.

7.611cm

b.

9.51cm

c.

9.31cm

d.

11.5cm

Discuss
Answer: (b).9.51cm
Q20.
The center of gravity of a circle of radius 10 cm will be _____________

a.

At its center of the diameter

b.

At the center of the radius

c.

Anywhere on the circumference

d.

Anywhere in its area

Discuss
Answer: (a).At its center of the diameter
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