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 25 of 31

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Q241.
Two forces are acting at an angle of 120°. The bigger force is 40N and the resultant is perpendicular to the smaller one. The smaller force is

a.

20 N

b.

40 N

c.

80 N

d.

none of these

Discuss
Answer: (a).20 N
Q242.
The centre of gravity a T-section 100 mm x 150 mm x 50 mm from its bottom is

a.

50mm

b.

75mm

c.

87.5mm

d.

125mm

Discuss
Answer: (c).87.5mm
Q243.
In order to completely specify angular displacement by a vector, it must fix

a.

direction of the axis of rotation

b.

magnitude of angular displacement

c.

sense of angular displacement

d.

all of these

Discuss
Answer: (d).all of these
Q244.
Which of the following statement is correct in connection with projectiles?

a.

A path, traced by a projectile in the space, is known as trajectory.

b.

The velocity with which a projectile is projected, is known as the velocity of projection.

c.

The angle, with the horizontal, at which a projectile is projected is known as angle of projection.

d.

all of the above

Discuss
Answer: (d).all of the above
Q245.
The acceleration of a body sliding down an inclined surface is

a.

g sin ฮธ

b.

g cos ฮธ

c.

g tan ฮธ

d.

none of these

Discuss
Answer: (a).g sin ฮธ
Q246.
If a body is acted upon by a number of coplaner non-concurrent forces, it may

a.

rotate about itself without moving

b.

move in any one direction rotating about itself

c.

be completely at rest

d.

all of these

Discuss
Answer: (d).all of these
Q247.
The angle which the normal reaction makes with the resultant reaction is called angle of friction.

a.

Agree

b.

Disagree

c.

Can't say

d.

None of these

Discuss
Answer: (a).Agree
Q248.
Which of the following statement is correct?

a.

The periodic time of a particle moving with simple harmonic motion is the time taken by a particle for one complete oscillation,

b.

The periodic time of a particle moving with simple harmonic motion is directly proportional to its angular velocity.

c.

The velocity of the particle moving with simple harmonic motion is zero at the mean position.

d.

The acceleration of the particle moving with simple harmonic motion is maximum at the mean position.

Discuss
Answer: (a).The periodic time of a particle moving with simple harmonic motion is the time taken by a particle for one complete oscillation,
Q249.
The law of the machine is(where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)

a.

P = mW - C

b.

P = m/W + C

c.

P = mW + C

d.

P = C - mW

Discuss
Answer: (c).P = mW + C
Q250.
The velocity of a body on reaching the ground from a height h, is

a.

2.โˆš(gh)

b.

โˆš(gh)

c.

โˆš(2gh)

d.

2g.โˆšh

Discuss
Answer: (c).โˆš(2gh)
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