Question:
The peripheral surface speed of faster roll in rubber-roll sheller is:
The peripheral surface speed of faster roll in rubber-roll sheller is:
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No speed difference = No shearing = No husking! The magic ratio is roughly 1.25:1.
Updated On: May 5, 2026
- 15-20% more
- 25-30% more
- 35-40% more
- Equal
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Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Concept Husking in a rubber roll sheller occurs due to the shearing force created by the speed difference between two rolls.
Step 2: Meaning One roll rotates faster than the other, and the paddy is caught in the nip between them.
Step 3: Analysis For effective husking without damaging the grain, the faster roll usually runs about 25% to 30% faster than the slower roll. This creates just enough shear to strip the husk off.
Step 4: Conclusion The speed of the faster roll is 25-30% more than the slower one.
Final Answer: (B)
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