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 13 of 48

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Q121.
The angle of the inclined plane at which the body just begins to slide down the plane, is called helix angle.

a.

Right

b.

Wrong

c.

Can't say

d.

None of these

Discuss
Answer: (b).Wrong
Q122.
In forced vibrations, the magnitude of damping force at resonance is equal to the impressed force.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (a).Correct
Q123.
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.

a.

greater than

b.

less than

c.

Can't say

d.

None of these

Discuss
Answer: (a).greater than
Q124.
For static balancing of a shaft, the net dynamic force acting on the shaft is equal to zero.

a.

Agree

b.

Disagree

c.

Can't say

d.

None of these

Discuss
Answer: (a).Agree
Q125.
A spring controlled governor is said to be unstable, if the relation between the controlling force (Fc) and radius of rotation (r) is Fc = ar.

a.

Agree

b.

Disagree

c.

Can't say

d.

None of these

Discuss
Answer: (b).Disagree
Q126.
The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be

a.

to raise the bow and stern

b.

to lower the bow and stern

c.

to raise the bow and lower the stern

d.

to raise the stern and lower the bow

Discuss
Answer: (c).to raise the bow and lower the stern
Q127.
When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as

a.

simple pendulum

b.

compound pendulum

c.

torsional pendulum

d.

second's pendulum

Discuss
Answer: (b).compound pendulum
Q128.
Longitudinal vibrations are said to occur when the particles of a body moves

a.

perpendicular to its axis

b.

parallel to its axis

c.

in a circle about its axis

d.

none of these

Discuss
Answer: (b).parallel to its axis
Q129.
The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft)

a.

ω(r1 - r2)sin θ

b.

ω(r1 + r2)sinθ sec²θ

c.

ω(r1 - r2)cos θ

d.

ω(r1 + r2)cos θ cosec² θ

Discuss
Answer: (b).ω(r1 + r2)sinθ sec²θ
Q130.
The sensitiveness of the governor __________ as the speed range decreases.

a.

remains unaffected

b.

decreases

c.

increases

d.

None of these

Discuss
Answer: (c).increases
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