Question

The size of coarse sand ranges between:

• A. 20 mm and 80 mm
• B. 4.75 mm and 20 mm
• C. 2.0 mm and 4.75 mm
• D. 0.425 mm to 2.0 mm

Hint:

Memorize sand size ranges: coarse = 2.0–4.75 mm; above that is gravel, below is fine/medium sand.

Answer 1

The Correct Option is C

According to soil classification standards, coarse sand has particle sizes between 2.0 mm and 4.75 mm.
- Fine sand: 0.075 mm – 0.425 mm
- Medium sand: 0.425 mm – 2.0 mm
- Coarse sand: 2.0 mm – 4.75 mm