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Most common decible scale used for measurement of sound and is measured directly...

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


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Answer :   Option: C


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More Questions Dynamics of Machinery:

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What is used to measure the acceleration component

A. Vibrometer

B. accelerometer

C. velometer

D. frequency meter


Answer & Explanation

Q.  
Quality factor is defined as

A. The minimum value of magnification factor

B. The maximum value of magnification factor

C. The magnification factor at the excitation frequency equal to the damped natural frequency

D. The magnification factor at the excitation frequency equal to the natural frequency


Answer & Explanation

Q.  
In a magneto-rheological damper, fluid changes its viscosity according to applied ______ field.

A. electric

B. sress

C. magnitic

D. None of the above


Answer & Explanation

Q.  
Resonance is the phenomenon when the frequency of external force is

A. twice the natural frequency of the system

B. half the natural frequency of the system

C. same the natural frequency of the system

D. none of these


Answer & Explanation
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