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Material thickness, density and porosity influences which property of material

Q.  
Material thickness, density and porosity influences which property of material


Answer & Explanation

Answer :   Option: C


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More Questions Dynamics of Machinery:

Q.  
Which of the following is true for centrifugal force causing unbalance?

A. Direction changes with rotation

B. Magnitude changes with rotation

C. Direction and magnitude both change with rotation

D. Direction and magnitude both remain unchanged with rotation


Answer & Explanation

Q.  
In order to have the two resonant frequencies to be quite apart, the ratio of main mass to absorber mass is kept between

A. 5 to 10

B. 100 to 150

C. 21 to 25

D. 0.6 to 0.8


Answer & Explanation

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The firing order in an I.C. engine depends upon

A. arrangement of the cylinders

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Answer & Explanation

Q.  
Reducing the transmission of the excitation forces from one part of the machine to another by the ______.

A. Introducing a damping

B. Use of vibration isolator

C. Addition of vibration absorber

D. Avoiding resonance


Answer & Explanation
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