Question

The smallest sieve size according to Indian standards is
1. 0.0045 mm
2. 0.045 mm
3. 0.45 mm
4. 0.154 mm

Answer 1

Correct Answer - Option 2 : 0.045 mm

According to Indian standards smallest sieve size is 0.045 mm

Aggregates are one of the most important materials used in construction.

If aggregate remain on 4.75 mm sieve then they are called coarse aggregates.

i.e. Coarse aggregate > 4,75 mm

If aggregates pass through 4.745 mm grade and retain on 75-micron sieve then they are called fine aggregates.

i.e. Fine aggregate < 4.75 mm