Practice Air Content (a) (1.4) - Volume Relations - Geotechnical Engineering

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6 sample questions

Question 1.
What is the formula for void ratio?
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Think about the volumes involved.
Question 2.
How do you express porosity?
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Remember it's a percentage.
3Question 3.
What does 'void ratio' describe in soil mechanics?
- Volume of air to volume of voids
- Volume of voids to volume of solids
- Volume of solids to total volume
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Consider what spaces you're comparing.
4Question 4.
True or False: The degree of saturation can exceed 100%.
- True
- False
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Think about saturation levels.
Question 5.
A soil sample has a dry unit weight of 18 kN/m³ and specific gravity of soil solids as 2.65. Given the water content is 12%, calculate the void ratio.
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Remember how specific gravity, water content, and dry unit weight interplay.
Question 6.
In soil mechanics, if the void ratio is 0.6 and degree of saturation is 75%, what is the volume of water in 100 m³ of soil?
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Relate S with the volume of voids and interpret through the ratios.

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