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MCQ Questions and Answers on Dynamics of Machinery

Q.  
Reverberation chamber is a room in which the acoustic energy from the room surface is ?


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Answer :   Option:- B

Explanation :

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Q.  
Stiffness matrix is


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Answer :   Option:- A

Explanation :

Stiffness matrix is Square as well as Symmetric type.


Q.  
In single reed frequency meter, screw mechanism is adjusted to change the length of the strip till amplitude becomes


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Answer :   Option:- B

Explanation :

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Q.  
Which of the following is a type of tuned vibration absorber?


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Answer :   Option:- B

Explanation :

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Q.  
A system will be called a two degree of freedom system if it is having


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Answer :   Option:- D

Explanation :

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Q.  
For a two rotor system, the mass moment of inertia of one shaft(A) is twice the other(B), then what is the relation between the length of the shafts.


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Answer :   Option:- A

Explanation :

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Q.  
In order to give the primary balance of the reciprocating parts of a multicylinder inline engines


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Answer :   Option:- C

Explanation :

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Q.  
Mass matrix is


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Answer :   Option:- D

Explanation :

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Q.  
A harmonically excited single DOF oscillator has the force transmissibility equal to or less than one at all excitation frequencies when damping factor of the system is


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Answer :   Option:- C

Explanation :

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Q.  
A harmonically excited single DOF oscillator has the force transmissibility equal to √2 (square root of two) when the excitation frequency is equal to the undamped natural frequency. The damping factor of the system is


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Answer :   Option:- A

Explanation :

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