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The region in a medium in which sound waves are being propagated from...

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


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Answer :   Option: A


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More Questions Dynamics of Machinery:

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


Answer & Explanation

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


Answer & Explanation

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


Answer & Explanation

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


Answer & Explanation
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