MCQ Questions and Answers on Dynamics of Machinery

Q.

Oscillation of simple pendulum is an example of

A. forced vibration

B. free vibration

C. none of these

D. all of these

Discuss

Answer : Option:- B

Explanation :

Oscillation of simple pendulum is example of free vibration.

Q.

Which of the following is not a controlling parameter in transmissibility curve?

A. Mass region

B. Damping region

C. Stiffness region

D. Motion region

Discuss

Answer : Option:- D

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

When the ration of main mass to absorber mass is very small, then absorber becomes ______.

A. highly effective

B. less effective

C. unaffected

D. none of the above

Discuss

Answer : Option:- B

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

Natural frequency of simple spring mass system depends on

A. spring constant

B. mass of the system

C. both spring constant and mass of the system

D. none of these

Discuss

Answer : Option:- C

Explanation :

In case of simple spring mass system natural frequency depend on both spring constant and mass of system.

Q.

The region in a medium in which sound waves are being propagated from the source of sounds is

A. Sound fields

B. Sound wave

C. Acoustic intensity

D. Overall sound pressure

Discuss

Answer : Option:- A

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

If a system is having three degree of freedom , how many natural frequencies it will have?

A. 1

B. 2

C. 3

D. 4

Discuss

Answer : Option:- C

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

Which of the following relations is true for viscous damping?

A. Force proportional to relative displacement

B. Force proportional to relative velocity

C. Force inversely proportional to relative velocity

D. None of the above

Discuss

Answer : Option:- B

Explanation :

In case of viscous damping force is proportional to relative velocity.

Q.

In order to balance the reciprocating masses,

A. primary forces and couples must be balanced

B. secondary forces and couples must be balanced

C. both (a) and (b)

D. none of these

Discuss

Answer : Option:- C

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

In steady state forced vibrations, the amplitude of vibrations at resonance is how much to damping coefficient?

A. Equal to

B. Directly proportional to

C. Indirectly proportional to

D. Independent of

Discuss

Answer : Option:- C

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

Materials made from vegetable and mineral fibers, elastomeric foams, glass blankets, fiber boards are example of

A. Membrane sound absorber material

B. Resonators sound absorber material

C. Porous sound absorber material

D. Non-porous panels

Discuss

Answer : Option:- C

Explanation :

Discuss here! No Explaination Available for These Question.

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MCQ Questions and Answers on Dynamics of Machinery

Q. Oscillation of simple pendulum is an example of

Q. Which of the following is not a controlling parameter in transmissibility curve?

Q. When the ration of main mass to absorber mass is very small, then absorber becomes ______.

Q. Natural frequency of simple spring mass system depends on

Q. The region in a medium in which sound waves are being propagated from the source of sounds is

Q. If a system is having three degree of freedom , how many natural frequencies it will have?

Q. Which of the following relations is true for viscous damping?

Q. In order to balance the reciprocating masses,

Q. In steady state forced vibrations, the amplitude of vibrations at resonance is how much to damping coefficient?

Q. Materials made from vegetable and mineral fibers, elastomeric foams, glass blankets, fiber boards are example of

Q.

Oscillation of simple pendulum is an example of

Q.

Which of the following is not a controlling parameter in transmissibility curve?

Q.

When the ration of main mass to absorber mass is very small, then absorber becomes ______.

Q.

Natural frequency of simple spring mass system depends on

Q.

The region in a medium in which sound waves are being propagated from the source of sounds is

Q.

If a system is having three degree of freedom , how many natural frequencies it will have?

Q.

Which of the following relations is true for viscous damping?

Q.

In order to balance the reciprocating masses,

Q.

In steady state forced vibrations, the amplitude of vibrations at resonance is how much to damping coefficient?

Q.

Materials made from vegetable and mineral fibers, elastomeric foams, glass blankets, fiber boards are example of