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 below figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is

a.

P/2

b.

2P

c.

โˆš2P

d.

P/โˆš2

Discuss
Answer: (c).โˆš2P
Q125.
The moment of the force P about O as shown in the below figure is

a.

P x OA

b.

P x OB

c.

P x OC

d.

P x AC

Discuss
Answer: (c).P x OC
Q126.
Moment of inertia of a hollow circular section, as shown in the below figure about an axis perpendicular to the section, is __________ than that about X-X axis.

a.

two times

b.

same

c.

half

d.

None of the above

Discuss
Answer: (a).two times
Q127.
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, ฮฑ = Angle of projection, and ฮฒ = Inclination of the plane with the horizontal.)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q128.
Two bodies of masses m1,and m2 are hung from the ends of a rope, passing oyer a frictionless pulley as shown in the figure below. The acceleration of the string will be

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q129.
The maximum height of a projectile on a horizontal plane, is

a.

u² sin²ฮฑ/2g

b.

u² cos²ฮฑ/2g

c.

u² sin²ฮฑ/g

d.

u² cos²ฮฑ/g

Discuss
Answer: (a).u² sin²ฮฑ/2g
Q130.
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
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