In an untrained triaxial test on a saturated clay, the Poisson’s

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In an untrained triaxial test on a saturated clay, the Poisson’s ratio is

1. σ₃
  (σ₁ + σ₃)
2. σ₃
  (σ₁ - σ₃)
3. σ₁ - σ₃
  σ₃
4. σ₁ + σ₃
  σ₃

Correct Option: A

η =	σ₃
	σ₁ + σ₃