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Q: According to IS 383, sand can be divided into how many grading zones?
  • A. Seven
  • B. Four
  • C. Six
  • D. One
Correct Answer: Option B - According to IS 383– • Depending upon the particle size, fine aggregates are described as fine, medium and coarse sands. • On the basis of particle size distribution, the fine aggregate's are classified into four zones; the grading zones being progressively finer from grading zone (I) to grading zone (IV).
B. According to IS 383– • Depending upon the particle size, fine aggregates are described as fine, medium and coarse sands. • On the basis of particle size distribution, the fine aggregate's are classified into four zones; the grading zones being progressively finer from grading zone (I) to grading zone (IV).

Explanations:

According to IS 383– • Depending upon the particle size, fine aggregates are described as fine, medium and coarse sands. • On the basis of particle size distribution, the fine aggregate's are classified into four zones; the grading zones being progressively finer from grading zone (I) to grading zone (IV).