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Background noise in pass-by noise should be less than

Q.  
Background noise in pass-by noise should be less than


Answer & Explanation

Answer :   Option: D


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More Questions Dynamics of Machinery:

Q.  
Time taken by vibrating body to complete one cycle is

A. period

B. frequency

C. resonance

D. damping


Answer & Explanation

Q.  
Reducing the response of the system by the ______ .

A. Introducing a damping

B. Use of vibration isolator

C. Addition of vibration absorber

D. Avoiding resonance


Answer & Explanation

Q.  
Most common decible scale used for measurement of sound and is measured directly on sound level meter is

A. Sound intensity level

B. Sound power level

C. Sound pressure level

D. Sound intensity


Answer & Explanation

Q.  
What is used to measure the acceleration component

A. Vibrometer

B. accelerometer

C. velometer

D. frequency meter


Answer & Explanation
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