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 2 of 48

Discover more Topics under Mechanical Engineering

Q11.
The steering of a ship means

a.

movement of a complete ship up and down in vertical plane about transverse axis

b.

turning of a complete ship in a curve towards right or left, while it moves forward

c.

rolling of a complete ship side-ways

d.

none of the above

Discuss
Answer: (b).turning of a complete ship in a curve towards right or left, while it moves forward
Q12.
The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, ฯ‰ = Angular speed of crank, r = Radius of crank, and ฮธ = Angle of inclination of crank to the line of stroke)

a.

m.ฯ‰².r cos ฮธ

b.

c.m.ฯ‰².r sin ฮธ

c.

(1 - c)m.ฯ‰².r(cos ฮธ - sin ฮธ)

d.

m.ฯ‰².r(cos ฮธ - sin ฮธ)

Discuss
Answer: (c).(1 - c)m.ฯ‰².r(cos ฮธ - sin ฮธ)
Q13.
The radial distance of a tooth from the pitch circle to the bottom of the tooth is called

a.

dedendum

b.

addendum

c.

clearance

d.

working depth

Discuss
Answer: (a).dedendum
Q14.
When the crank is at the inner dead centre, in a reciprocating steam engine, then the velocity of the piston will be

a.

minimum

b.

zero

c.

maximum

d.

none of these

Discuss
Answer: (b).zero
Q15.
The frictional torque transmitted in a multi-collared shaft is same as that of a single collared shaft.

a.

Right

b.

Wrong

c.

Can't say

d.

None of these

Discuss
Answer: (a).Right
Q16.
In order to give the primary balance of the reciprocating parts of a multi-cylinder in-line engines,

a.

the algebraic sum of the primary forces must be equal to zero

b.

the algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero

c.

both (a) and (b)

d.

none of these

Discuss
Answer: (c).both (a) and (b)
Q17.
Two pulleys of radii r1 and r2 and at distance x apart are connected by means of a cross belt drive. The length of the belt is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q18.
A shaft of mass (mc) and stiffness (s) is fixed at one end and carries a mass (m) at the other end. The natural frequency of its longitudinal vibration is equal to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q19.
The ratio of velocities of the shafts connected by Hooke's joint is given by (where N and N1 = Speed of driving and driven shafts (in r.p.m.) respectively, ฮธ = Angle through which the arms of the cross turn, and ฮฑ = Angle of inclination between the two shafts)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q20.
In under damped vibrating system, if x1 and x2 are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
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