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!

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Theory of machines MCQs | Page 6 of 48

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Q51.
In the two rotor system as shown in the below figure (I1 < I2), a node of vibration is situated

a.

between I1, and I2 but nearer I1

b.

between I1, and I2 but nearer to I2

c.

exactly in the middle of the shaft

d.

nearer to I1 but outside

Discuss
Answer: (b).between I1, and I2 but nearer to I2
Q52.
In the below figure, PC is the connecting rod and OC is the crank making an angle ฮธ with the line of stroke PO and rotates with uniform angular velocity at ฯ‰ rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO, the acceleration of the piston is zero when the crank OC and connecting rod PC are at right angles to each other.

a.

Correct

b.

Incorrect

c.

May be correct or incorrect

d.

None of these

Discuss
Answer: (a).Correct
Q53.
For the brake to be self locking, the force P at C shown in the below figure, should

a.

be zero

b.

act in upward direction

c.

act in downward direction

d.

none of these

Discuss
Answer: (a).be zero
Q54.
In the below figure, PC is the connecting rod and OC is the crank making an angle ฮธ with the line of stroke PO and rotates with uniform angular velocity at ฯ‰ rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO, if N coincides with O, then

a.

acceleration and velocity of the piston P is zero

b.

acceleration and velocity of the piston P is maximum

c.

acceleration of the piston P is zero and its velocity is maximum

d.

acceleration of the piston P is maximum and its velocity is zero

Discuss
Answer: (c).acceleration of the piston P is zero and its velocity is maximum
Q55.
In the below figure, PC is the connecting rod and OC is the crank making an angle ฮธ with the line of stroke PO and rotates with uniform angular velocity at ฯ‰ rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral C Q NO. The acceleration of the piston P with respect to the crankpin C is given by

a.

ฯ‰² x NO

b.

ฯ‰² x CO

c.

ฯ‰² x CN

d.

ฯ‰² x QN

Discuss
Answer: (c).ฯ‰² x CN
Q56.
The acceleration of the particle moving with simple harmonic motion is inversely proportional to the displacement of the particle from the mean position.

a.

Yes

b.

No

c.

Can't say

d.

None of these

Discuss
Answer: (b).No
Q57.
The maximum and minimum value of the tractive force is given by

a.

± c.m x ฯ‰².r

b.

± 2 x c.m.ฯ‰².r

c.

± 2(1 - c)m x ฯ‰².r

d.

± 2 x c.m x ฯ‰².r

Discuss
Answer: (c).± 2(1 - c)m x ฯ‰².r
Q58.
In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called

a.

fluctuation of energy

b.

maximum fluctuation of energy

c.

coefficient of fluctuation of energy

d.

none of these

Discuss
Answer: (a).fluctuation of energy
Q59.
In a spring controlled governor, when the controlling force __________ as the radius of rotation increases, it is said to be a stable governor.

a.

remains constant

b.

decreases

c.

increases

d.

None of these

Discuss
Answer: (c).increases
Q60.
The distance between the centre of suspension and centre of percussion is equal to the equivalent length of a simple pendulum.

a.

Agree

b.

Disagree

c.

Can't say

d.

None of these

Discuss
Answer: (a).Agree
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