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Q: The diameter of the sieve used for finding liquid limit is ............
  • A. 375 microns
  • B. 250 microns
  • C. 125 microns
  • D. 425 microns
Correct Answer: Option D - • 425 microns diameter of the sieve is used for finding liquid limit of soil. • Liquid limit (WL) is the water content at which a soil is practically in a liquid state, but has small resistance against flow which can be measured by any standardized procedure. • About 120g of air-dried soil passing through IS sieve 425 micron is taken and mixed with water such that the soil attains a putty like consistency.
D. • 425 microns diameter of the sieve is used for finding liquid limit of soil. • Liquid limit (WL) is the water content at which a soil is practically in a liquid state, but has small resistance against flow which can be measured by any standardized procedure. • About 120g of air-dried soil passing through IS sieve 425 micron is taken and mixed with water such that the soil attains a putty like consistency.

Explanations:

• 425 microns diameter of the sieve is used for finding liquid limit of soil. • Liquid limit (WL) is the water content at which a soil is practically in a liquid state, but has small resistance against flow which can be measured by any standardized procedure. • About 120g of air-dried soil passing through IS sieve 425 micron is taken and mixed with water such that the soil attains a putty like consistency.