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As per survey about community noise in urban areas, the percentage of noise...

Q.  
As per survey about community noise in urban areas, the percentage of noise contribution is 'maximum' in following source


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Answer :   Option: D


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More Questions Dynamics of Machinery:

Q.  
If the damping factor is unity the system refers to

A. Critical damped system

B. Over damped system

C. Under damped system

D. All of these


Answer & Explanation

Q.  
If isolation factor is negative, then what is the phase difference between transmitted and disturbing force?

A. 180°

B. 90°

C. 450°

D. 360°


Answer & Explanation

Q.  
If the mass of a body increases Nine (9) times

A. frequency decreases 3 times

B. frequency does not change

C. will be zero

D. frequency decreases 4 times


Answer & Explanation

Q.  
Anechoic chamber is

A. reflective, non-echoing

B. non-reflective, non-echoing

C. non-reflective, echoing

D. reflective, echoing


Answer & Explanation
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