Question:
The size reduction mill where the grains are rubbed between the grooved flat faces of rotating circular disks is
The size reduction mill where the grains are rubbed between the grooved flat faces of rotating circular disks is
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Attrition mill reduces size mainly by rubbing and shearing action between rotating disks.
Updated On: May 7, 2026
- Colloid mill
- Ball mill
- Hammer mill
- Attrition mill
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The Correct Option is D
Solution and Explanation
Concept:
Size reduction is the process of reducing large particles into smaller particles using mechanical forces.
Step 1: In an attrition mill, material is reduced in size by rubbing action.
Step 2: The grains are passed between grooved circular disks.
Step 3: These disks rotate and apply frictional rubbing action on the grains.
Step 4: Due to this rubbing and shearing action, the grains are broken into smaller particles.
Step 5: Hence, the correct mill is attrition mill. \[ \boxed{\text{Attrition mill}} \]
Size reduction is the process of reducing large particles into smaller particles using mechanical forces.
Step 1: In an attrition mill, material is reduced in size by rubbing action.
Step 2: The grains are passed between grooved circular disks.
Step 3: These disks rotate and apply frictional rubbing action on the grains.
Step 4: Due to this rubbing and shearing action, the grains are broken into smaller particles.
Step 5: Hence, the correct mill is attrition mill. \[ \boxed{\text{Attrition mill}} \]
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