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 31 of 48

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Q301.
The unbalanced force due to reciprocating masses

a.

varies in magnitude but constant in direction

b.

varies in direction but constant in magnitude

c.

varies in magnitude and direction both

d.

constant in magnitude and direction both

Discuss
Answer: (a).varies in magnitude but constant in direction
Q302.
The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where ฮผ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

a.

ฮผ W R

b.

ฮผ W R

c.

ฮผ W R

d.

ฮผ W R

Discuss
Answer: (d).ฮผ W R
Q303.
In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from

a.

10° - 15°

b.

15° - 25°

c.

25° - 30°

d.

30° - 40°

Discuss
Answer: (c).25° - 30°
Q304.
A kinematic chain is known as a mechanism when

a.

none of the links is fixed

b.

one of the links is fixed

c.

two of the links are fixed

d.

none of these

Discuss
Answer: (b).one of the links is fixed
Q305.
When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.

a.

upward

b.

downward

c.

Can't say

d.

None of these

Discuss
Answer: (b).downward
Q306.
There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is

a.

1/24

b.

1/8

c.

4/15

d.

12

Discuss
Answer: (a).1/24
Q307.
The velocity of a body moving with simple harmonic motion is __________ at the mean position.

a.

zero

b.

minimum

c.

maximum

d.

None of these

Discuss
Answer: (c).maximum
Q308.
A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2 L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

a.

remain same as before

b.

become equal to 2 R

c.

become equal to R/2

d.

become equal to R/4

Discuss
Answer: (a).remain same as before
Q309.
If the pressure angle is __________ , a reciprocating follower will jam in its bearings.

a.

too small

b.

too large

c.

Can't say

d.

None of these

Discuss
Answer: (b).too large
Q310.
The D-slide valve is also known as

a.

inside admission valve

b.

outside admission valve

c.

piston slide valve

d.

none of these

Discuss
Answer: (b).outside admission valve
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