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Find the critical speed of the shaft when the trailer is travelling over...

Q.  
Find the critical speed of the shaft when the trailer is travelling over a raod with a profile is approximated by wavelength of 14 m and natural frequency is given by 15 rad/sec.


Answer & Explanation

Answer :   Option: C


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Which of the following conditions should be satisfied for complete balancing of multi-cylinder inline engines?

A. Primary couples should be balanced

B. Secondary couples should be balanced

C. Both a. and b.

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Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots.

A. 25.62 rad/sec

B. 20.78 rad/sec

C. 14.40 rad/sec

D. 15.33 rad/sec


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In vibration isolation system, if ω/ωn, then the phase difference between the transmitted force and the disturbing force is

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Q.  
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Answer & Explanation
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