Soil Classification and Sieve Analysis

The video tutorial addresses a GATE 2006 geotechnical engineering problem, focusing on sieve analysis of a soil sample. It explains how to calculate the coefficient of uniformity and classify the soil as poorly graded sand based on the analysis results.

What was the total weight of the soil sample used in the GATE 2006 problem?

• 700 grams

• 600 grams

• 500 grams

• 400 grams

How much soil was retained on the 600 micron sieve?

• 250 grams

• 200 grams

• 150 grams

• 100 grams

What is the formula for calculating the coefficient of uniformity (Cu)?

• Cu = D40/D20

• Cu = D50/D20

• Cu = D60/D10

• Cu = D30/D10

What percentage of the total soil sample is used to determine D60?

• 20%

• 60%

• 50%

• 10%

Through which sieve does 10% of the soil sample pass?

• 600 micron

• 500 micron

• 425 micron

• 300 micron

What is the range of particle size for sand?

• Greater than 1 mm but less than 10 mm

• Greater than 4.75 mm but less than 80 mm

• Greater than 75 micron but less than 4.75 mm

• Greater than 2 micron but less than 75 micron

What is the coefficient of uniformity value that indicates well-graded sand?

• Greater than 8

• Greater than 6

• Greater than 4

• Greater than 2

What is the calculated coefficient of uniformity for the given soil sample?

• 2.0

• 1.5

• 1.2

• 1.0

What classification is given to the soil if the coefficient of uniformity is 1.2?

• Poorly graded sand

• Well-graded sand

• Poorly graded gravel

• Well-graded gravel

Which of the following is not a classification option for the soil in the problem?

• SP

• SW

• GP

• GW