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 39 of 48

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Q381.
The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is

a.

Fc = ar + b

b.

Fc = ar - b

c.

Fc = ar

d.

Fc = a/r + b

Discuss
Answer: (b).Fc = ar - b
Q382.
A rotary internal combustion engine has __________ cylinders.

a.

four

b.

five

c.

six

d.

seven

Discuss
Answer: (d).seven
Q383.
The power transmitted by a belt is maximum when the maximum tension in the belt is __________ of centrifugal tension.

a.

one-third

b.

two-third

c.

double

d.

three times

Discuss
Answer: (d).three times
Q384.
A slider moves at a velocity v on a link revolving at ฯ‰ rad/s. The coriolis component of acceleration is

a.

ฯ‰v

b.

2 ฯ‰v

c.

ฯ‰²v

d.

2 ฯ‰v2

Discuss
Answer: (b).2 ฯ‰v
Q385.
The effort of a Porter governor is equal to (where c = Percentage increase in speed, m = Mass of ball, and M = Mass on the sleeve)

a.

c(m - M)g

b.

c(m + M)g

c.

c(m.M)g

d.

None of these

Discuss
Answer: (b).c(m + M)g
Q386.
In a reciprocating steam engine, which of the following forms a kinematic link?

a.

Cylinder and piston

b.

Piston rod and connecting rod

c.

Crankshaft and flywheel

d.

Flywheel and engine frame

Discuss
Answer: (c).Crankshaft and flywheel
Q387.
The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is

a.

ฮผ W cosec ฮฑ (r1 + r2)

b.

ฮผ W cosec ฮฑ (r1 + r2)

c.

ฮผ W cosec ฮฑ

d.

ฮผ W cosec ฮฑ

Discuss
Answer: (b).ฮผ W cosec ฮฑ (r1 + r2)
Q388.
A spring controlled governor is said to be isochronous when the controlling force

a.

increases as the radius of rotation decreases

b.

increases as the radius of rotation increases

c.

decreases as the radius of rotation increases

d.

remains constant for all radii of rotation

Discuss
Answer: (d).remains constant for all radii of rotation
Q389.
In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will

a.

cause withdrawing or throttling of steam

b.

reduce length of effective stroke of piston

c.

reduce maximum opening of port to steam

d.

all of these

Discuss
Answer: (b).reduce length of effective stroke of piston
Q390.
The equation of motion for a vibrating system with viscous damping is , if the roots of the equation are complex conjugate, then the system will be critically damped.

a.

Yes

b.

No

c.

Can't say

d.

None of these

Discuss
Answer: (b).No
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