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 13 of 31

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Q121.
In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.

a.

less than

b.

equal to

c.

more than

d.

None of these

Discuss
Answer: (a).less than
Q122.
The unit of work in S.I. units is

a.

newton

b.

erg

c.

kg-m

d.

joule

Discuss
Answer: (d).joule
Q123.
The static friction

a.

bears a constant ratio to the normal reaction between the two surfaces

b.

is independent of the area of contact, between the two surfaces

c.

always acts in a direction, opposite to that in which the body tends to move

d.

all of the above

Discuss
Answer: (d).all of the above
Q124.
The maximum height of a projectile on a horizontal plane, is

a.

u² sin²α/2g

b.

u² cos²α/2g

c.

u² sin²α/g

d.

u² cos²α/g

Discuss
Answer: (a).u² sin²α/2g
Q125.
If the body falls freely under gravity, then the gravitational acceleration is taken as

a.

+8.9 m/s²

b.

-8.9 m/s²

c.

+9.8 m/s²

d.

-9.8 m/s²

Discuss
Answer: (c). +9.8 m/s²
Q126.
The rate of change of displacement of a body is called

a.

velocity

b.

acceleration

c.

momentum

d.

none of these

Discuss
Answer: (a).velocity
Q127.
The efficiency of a screw jack is maximum, when(where α = Helix angle, and φ = Angle of friction.)

a.

α = 45° + φ/2

b.

α = 45° - φ/2

c.

α = 90° + φ

d.

α = 90° - φ

Discuss
Answer: (b).α = 45° - φ/2
Q128.
The periodic time (T) is given by(where ω = Angular velocity of particle in rad / s.)

a.

ω/2π

b.

2π/ω

c.

2π x ω

d.

π/ω

Discuss
Answer: (b).2π/ω
Q129.
One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by(where δ = Deflection of the spring.)

a.

2π. √(g/δ)

b.

1/2π. √(g/δ)

c.

2π. √(δ/g)

d.

1/2π. √(δ/g)

Discuss
Answer: (b).1/2π. √(g/δ)
Q130.
The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.

a.

more

b.

less

c.

Can't say

d.

None of these

Discuss
Answer: (a).more
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