Engineering Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Engineering Mechanics, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Engineering Mechanics 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 Engineering Mechanics mcq questions that explore various aspects of Engineering Mechanics problems. Each MCQ is crafted to challenge your understanding of Engineering Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Engineering Mechanics MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Engineering Mechanics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Engineering Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Engineering Mechanics MCQs | Page 8 of 31

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Q71.
According to the law of moments, if a number of coplaner forces acting on a particle are in equilibrium, then

a.

their algebraic sum is zero

b.

their lines of action are at equal distances

c.

the algebraic sum of their moments about any point in their plane is zero

d.

the algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point.

Discuss
Answer: (c).the algebraic sum of their moments about any point in their plane is zero
Q72.
If u1 and u2 are the velocities of two moving bodies in the same direction before impact and v1 and v2 are their velocities after impact, then coefficient of restitution is given by

a.

v1-v2/u1-u2

b.

v2-v1/u1-u2

c.

u1-u2/v1-v2

d.

u2+u1/v2+v1

Discuss
Answer: (b).v2-v1/u1-u2
Q73.
The centre of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.

a.

3r/ 8

b.

4r/ 3ฯ€

c.

8r/3

d.

3r/4ฯ€

Discuss
Answer: (b).4r/ 3ฯ€
Q74.
The process of finding out the resultant force is called __________ of forces.

a.

composition

b.

resolution

c.

Can't say

d.

None of these

Discuss
Answer: (a).composition
Q75.
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is

a.

reversible

b.

non-reversible

c.

ideal

d.

None of these

Discuss
Answer: (a).reversible
Q76.
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

a.

equal to

b.

less than

c.

greater than

d.

None of these

Discuss
Answer: (a).equal to
Q77.
The centre of gravity of an is osceles triangle with base (p) and sides (q) from its base is

a.

[โˆš(4p² - q²)]/6

b.

(4p² - q²)/6

c.

(p² - q²)/4

d.

(p² + q²)/4

Discuss
Answer: (a).[โˆš(4p² - q²)]/6
Q78.
A newton is defined as the force while acting upon a mass of one kg, produces an acceleration of 1 m / s² in the direction of which it acts.

a.

Yes

b.

No

c.

Can't say

d.

None of these

Discuss
Answer: (a).Yes
Q79.
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

a.

ฯ‰.y

b.

ฯ‰².y

c.

ฯ‰² /y

d.

ฯ‰3.y

Discuss
Answer: (b).ฯ‰².y
Q80.
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

a.

less than

b.

greater than

c.

Can't say

d.

None of these

Discuss
Answer: (b).greater than
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