Question:medium

Toughness index gives a measure of shear strength of soil at _____.

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Remember: \[ \boxed{ I_t=\frac{I_p}{I_f} } \] Toughness index indicates the soil's shear strength near the plastic limit.
Updated On: Jul 24, 2026
  • Plastic limit
  • Liquid limit
  • Shrinkage limit
  • Dry state
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The Correct Option is A

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