Question

The bulking of the sand is increased in volume from 20% to 40% of various sand and moisture content ranges from ……… to ……….. percent.

• A. 50 to 80
• B. 30 to 50
• C. 5 to 8
• D. 8 to 11

Hint:

- Fine sands show higher bulking than coarse sands.

Answer 1

The Correct Option is A

Step 1: Understanding bulking of sand. 
- Bulking occurs due to surface tension of moisture in fine sand particles. 
Step 2: Identifying the moisture content range. 
- Bulking increases maximum between 50-80% depending on the sand fineness. Thus, the correct answer is (A) 50 to 80.