Theory of machines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Theory of machines, 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 Theory of machines 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 Theory of machines mcq questions that explore various aspects of Theory of machines problems. Each MCQ is crafted to challenge your understanding of Theory of machines 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 Theory of machines 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 Theory of machines. 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 Theory of machines knowledge to the test? Let's get started with our carefully curated MCQs!

Theory of machines MCQs | Page 27 of 48

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Q261.
For the isochronous Porter governor, the controlling force curve is a straight line passing through the origin.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (a).Correct
Q262.
The virtual or equivalent eccentric for the Meyer's expansion valve is defined as an eccentric having such a length and angle of advance that will cause cut-off to take place at the same position, as is caused by the combined effect of main eccentric and expansion eccentric.

a.

Right

b.

Wrong

c.

Can't say

d.

None of these

Discuss
Answer: (a).Right
Q263.
A railway bridge is an example of a machine.

a.

True

b.

False

c.

Can't say

d.

None of these

Discuss
Answer: (b).False
Q264.
Scott Russell's mechanism is made up of sliding pair.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (a).Correct
Q265.
Which of the following is an example of a higher pair ?

a.

Toothed gearing

b.

Belt and rope drive

c.

Ball and roller bearing

d.

all of these

Discuss
Answer: (d).all of these
Q266.
The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

a.

ฯ‰R cos ฮธ

b.

ฯ‰(R - r1)cos ฮธ

c.

ฯ‰(R - r1)sin ฮธ

d.

ฯ‰r1 sin ฮธ

Discuss
Answer: (c).ฯ‰(R - r1)sin ฮธ
Q267.
Which of the following property of the instantaneous centre is correct ?

a.

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

b.

The two rigid links have no linear velocity relative to each other at the instantaneous centre.

c.

The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.

d.

all of the above

Discuss
Answer: (d).all of the above
Q268.
The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

a.

2ฯ€. โˆš(q/I)

b.

2ฯ€ qI

c.

(1/2ฯ€). โˆš(q/I)

d.

1/2ฯ€

Discuss
Answer: (c).(1/2ฯ€). โˆš(q/I)
Q269.
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

a.

four times the first one

b.

same as the first one

c.

one fourth of the first one

d.

one and a half times the first one

Discuss
Answer: (c).one fourth of the first one
Q270.
The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints)

a.

n = (l - 1) - j

b.

n = 2(l - 1) - 2j

c.

n = 3(l - 1) - 2j

d.

n = 4(l - 1) - 3j

Discuss
Answer: (c).n = 3(l - 1) - 2j
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