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Civil Engineering PE

Category - Soil and Materials

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What is the unit weight of a soil sample weighing 1.5 grams with a volume of 0.6 cubic centimeters (cm³)?

0.9 g/cm³
2.5 g/cm³
7.5 g/cm³
Not enough information provided

Explanation

Answer: B - The unit weight of a 0.6 cm³ soil sample weighing 1.5 grams is 2.5 g/cm³.

Solution: Use the following equation to determine the solid unit weight, ɣ_s
ɣ_s = mass of solids / volume of solids

= 1.5 grams / 0.6 cm³

ɣ_s = 2.5

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