The surface speed of cylinder is
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- Greater than that of licker in
- Lesser than that of licker in
- Lesser than that of doffer
- Greater than that of doffer but lesser than licker in
The Correct Option is A
Solution and Explanation
In a carding machine, the cylinder rotates at the highest surface speed. This high speed is essential for effective carding action. The licker-in, which initially picks up fibers from the feed, rotates at a considerably slower speed than the cylinder. The doffer, which removes the carded web from the cylinder, rotates even slower than the licker-in. This speed differential between the cylinder and the other rollers facilitates fiber transfer and alignment.
The speed arrangement (from fastest to slowest) is generally: Cylinder>Licker-in>Doffer.
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