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0.334 is the Poisson's ratio value for which of the following?
1. Brass
2. Copper
3. Nickel
4. Aluminium

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Correct Answer - Option 4 : Aluminium

Explanation:

Poisson's ratio is the ratio of transverse strain to longitudinal strain.

\(\mu = - \frac{{{\epsilon_{lateral}}}}{{{\epsilon_{longitudinal}}}}\)

For perfectly isotropic elastic material, Poisson’s ratio is 0.25 but for most of the materials, the values lie in the range of 0.28 and 0.33. For steels, it is 0.3.

Stainless steel: 0.30 – 0.31

Steel: 0.27 – 0.30

Cast iron: 0.21 – 0.26

Cork: 0.0

Rubber: 0.5

Aluminium Alloys: 0.330 - 0.334

Copper: 0.34

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