The quantity of sludge with 95% moisture will be _______ that of 90% moisture for same volume of solids
- AHalf
- BTwiceCorrect
- CFive times
- DOne fifth
Solution
Concept
Sludge volume and moisture
Formula
V ∝ 1/(100 − P)
Step-by-step solution
1. 95% moisture → 5% solids; 90% moisture → 10% solids. 2. V₁/V₂ = (100 − 90)/(100 − 95) = 10/5 = 2.
Explanation
Doubling the solids content halves the volume.
Shortcut
V ∝ 1/(solids %).
Correct answer: B) Twice