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What is the minimum value of damping factor for which the magnification factor...

Q.  
What is the minimum value of damping factor for which the magnification factor is always less than one


Answer & Explanation

Answer :   Option: C


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More Questions Dynamics of Machinery:

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Which among the following is the fundamental equation of S.H.M.?

A. x + (k / m) x =0

B. x + ω2x =0

C. x + (k/ m)2 x =0

D. none of these


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Q.  
Vibration control method aims to ______

A. increase the vibraaton level

B. eliminate the vibrations

C. keep the vibration level within the desirable limits

D. None of the above


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Q.  
In damped vibrations, the amplitude of the resulting vibration gradually reduces. This is due to the reason that an amount of energy is always dissipated to overcome the ______

A. Frictional resistance

B. Work done

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D. Air pressure


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Q.  
A harmonic motion is

A. necessarily a periodic motion

B. as aperiodic

C. a motion described in a circle

D. none of these


Answer & Explanation
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