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GATE 2023 CE (CE1) – Question 16

Geotechnical Engineering · Three-phase system, phase relationships, index properties and soil classification · 1 mark · Multiple choice

The specific gravity of a soil is 2.60. The soil is at 50% degree of saturation with a water content of 15%. The void ratio of the soil is _____.

  1. 0.35
  2. 0.78
  3. 0.87
  4. 1.28

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Correct answer: (B) 0.78

Explanation

From $Se = wG_s$: $e = \frac{wG_s}{S} = \frac{0.15 \times 2.60}{0.5} = 0.78$.