Question:
What is the primary principle behind the operation of a rubber roll sheller?
What is the primary principle behind the operation of a rubber roll sheller?
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Shearing strips the husk; rubber provides the grip (friction).
Updated On: May 5, 2026
- Impact
- Friction and Shearing
- Compression
- Abrasion
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The Correct Option is B
Solution and Explanation
Step 1: Concept A rubber roll sheller removes the husk from paddy by passing the grains between two rubber rollers.
Step 2: Meaning The rollers rotate in opposite directions at different peripheral speeds.
Step 3: Analysis The difference in speed between the two rolls creates a shearing force on the grain. Combined with the friction provided by the rubber surface, the husk is literally stripped off the rice kernel.
Step 4: Conclusion Friction and shearing are the governing principles.
Final Answer: (B)
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