Question Bank • QB_SWCE_EXP_013 NAT • 1 Mark

Section 4: Soil and Water Conservation Engineering

Soil Mechanics

Subtopic: Fundamental definitions and relationships

Question Statement:

A saturated soil sample has a water content $w = 20\%$ and specific gravity of soil solids $G_s = 2.70$. The void ratio $e$ of the soil is ________ (round off to 2 decimal places).

Answer Key:

0.54

Step-by-Step Solution & Explanation

Using the phase relationship $e S = w G_s$: For fully saturated soil, degree of saturation $S = 1.0$. $e = w G_s = 0.20 \times 2.70 = 0.54$
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