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The amount of cracks and openings in acoustic enclosure should be ?

Q.  
The amount of cracks and openings in acoustic enclosure should be ?


Answer & Explanation

Answer :   Option: A


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More Questions Dynamics of Machinery:

Q.  
A vertical spring mass system has a mass of 0.5 kg and an initial deflection of 0.2 cm find the value of natural frequency

A. 11.14 Hz

B. 10.23 Hz

C. 8.97 Hz

D. 7.96 Hz


Answer & Explanation

Q.  
Pass-by noise measurements can actually be simulated indoor using a suitable

A. Anechoic chamber

B. Partial-anechoic chamber

C. Hemi-anechoic chamber

D. Reverberation Chamber


Answer & Explanation

Q.  
In which direction does the damping force acts?

A. Opposite to the motion

B. Along the motion

C. Perpendicular to motion

D. Variable


Answer & Explanation

Q.  
In case of a harmonically excited single DOF system, the frequency of steady state vibration of the mass is equal to the

A. Natural frequency

B. Damped natural frequency

C. Excitation frequency

D. Combination of natural, damped natural and excitation frequencies


Answer & Explanation
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