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 23 of 31

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Q221.
A machine having an efficiency greater than 50%, is known as

a.

reversible machine

b.

non-reversible machine

c.

neither reversible nor non-reversible machine

d.

ideal machine

Discuss
Answer: (a).reversible machine
Q222.
The impact between two lead spheres is approximately equal to an __________ impact.

a.

elastic

b.

inelastic

c.

Can't say

d.

None of these

Discuss
Answer: (b).inelastic
Q223.
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

a.

nine times

b.

six times

c.

four times

d.

two times

Discuss
Answer: (a).nine times
Q224.
If a body is thrown upwards, then the gravitational acceleration is taken as zero.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (b).Incorrect
Q225.
An ideal machine is one whose efficiency is

a.

between 60 and 70 %

b.

between 70 and 80%

c.

between 80 and 90%

d.

100%

Discuss
Answer: (d).100%
Q226.
The energy possessed by a body, for doing work by virtue of its position, is called

a.

potential energy

b.

kinetic energy

c.

electrical energy

d.

chemical energy

Discuss
Answer: (a).potential energy
Q227.
The potential energy stored by a spring in compression, is called strain energy.

a.

Yes

b.

No

c.

Can't say

d.

None of these

Discuss
Answer: (a).Yes
Q228.
The moment of a force

a.

is the turning effect produced by a force, on the body, on which it acts

b.

is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force

c.

is equal to twice the area of the traingle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

d.

all of the above

Discuss
Answer: (d).all of the above
Q229.
The frequency of oscillation of a compound pendulum is(where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

a.

2ฯ€. โˆš(gh/kG² + h²)

b.

2ฯ€. โˆš(kG² + h²/gh)

c.

1/2ฯ€. โˆš(gh/kG² + h²)

d.

1/2ฯ€. โˆš(kG² + h²/gh)

Discuss
Answer: (c).1/2ฯ€. โˆš(gh/kG² + h²)
Q230.
In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is

a.

50

b.

100

c.

150

d.

200

Discuss
Answer: (b).100
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