Lecture 3_Particle Size

What is the purpose of mechanical analysis of soil?

• To assess soil moisture content

• To determine soil color

• To group soils with similar engineering properties

• To measure soil temperature

Which of the following is classified as coarse-grained soil?

• Loam

• Sand

• Silt

• Clay

What is the size range for fine gravel according to the text?

• 2.00 – 4.75 mm

• 4.75 – 19.0 mm

• 0.075 – 0.425 mm

• 19.0 – 76.2 mm

What is the smallest sieve size mentioned in the text?

• No. 40

• No. 200

• No. 10

• No. 4

What does the term 'GSD' stand for?

• Geological Survey Division

• Groundwater Saturation Depth

• Geotechnical Soil Data

• Grain Size Distribution

What is the procedure for sieve analysis?

• Soil is heated to high temperatures

• Soil is submerged in water

• Soil is oven-dried and shaken through a stack of sieves

• Soil is mixed with chemicals

What is the purpose of wet sieving technique?

• To dry the soil sample

• To preserve the fine content in clayey soils

• To separate soil from rocks

• To increase the weight of the soil