Energy requirement (per unit mass of material crushed/ground) is highest for__________________?
Correct answer: B. Fluid energy mill
- A. Jaw crusher
- B. Fluid energy mill
- C. Ball mill
- D. Rod mill
Explanation
A fluid energy mill produces extremely fine particles by high-velocity fluid jets and particle-to-particle impact, requiring considerable energy per unit mass. Jaw crushers and rod mills generally perform coarser size reduction with lower specific energy.
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