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 11 of 31

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Q101.
A circular hole of 50 mm diameter is cut out from a circular disc of 100 mm diameter as shown in the below figure. The centre of gravity of the section will lie

a.

in the shaded area

b.

in the hole

c.

at O

d.

None of the above

Discuss
Answer: (a).in the shaded area
Q102.
In a framed structure, as shown in the below figure, the force in the member AB is __________ the force in member AC.

a.

half

b.

equal to

c.

double

d.

None of the above

Discuss
Answer: (a).half
Q103.
The force induced in the string AB due to the load W, as shown in the below figure is

a.

W sin ฮธ

b.

W cos ฮธ

c.

W sec ฮธ

d.

W cosec ฮธ

Discuss
Answer: (d).W cosec ฮธ
Q104.
Two blocks A and B of masses 150 kg and 50 kg respectively are connected by means of a string as shown in the below figure. The tension in all the three strings __________ be same.

a.

will

b.

will not

c.

can't say

d.

none of these

Discuss
Answer: (a).will
Q105.
The minimum force required to slide a body of weight W on a rough horizontal plane is

a.

W sin ฮธ

b.

W cos ฮธ

c.

W tan ฮธ

d.

none of these

Discuss
Answer: (c).W tan ฮธ
Q106.
The moment of inertia of a square of side a about its diagonal is

a.

a2/8

b.

a3/12

c.

a4/12

d.

a4/16

Discuss
Answer: (c).a4/12
Q107.
The angular velocity (in rad / s) of a body rotating at N revolutions per minute is

a.

ฯ€N/60

b.

ฯ€N/180

c.

2ฯ€N/60

d.

2ฯ€N/180

Discuss
Answer: (c).2ฯ€N/60
Q108.
The maximum efficiency of a lifting machine is

a.

1/m

b.

V.R./m

c.

m/V.R.

d.

1/(m x V.R.)

Discuss
Answer: (d).1/(m x V.R.)
Q109.
A machine having an efficiency less than 50%, is known as

a.

reversible machine

b.

non-reversible machine

c.

neither reversible nor non-reversible machine

d.

ideal machine

Discuss
Answer: (b).non-reversible machine
Q110.
The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called

a.

Newton's first law of motion

b.

Newton's second law of motion

c.

principle of conservation of energy

d.

principle of conservation of momentum

Discuss
Answer: (d).principle of conservation of momentum
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