Paper industry employs _______________ driers?
Correct answer: A. Cylinder
- A. Cylinder
- B. Rotary
- C. Spray
- D. Fluidised bed
Explanation
Paper is dried continuously by passing it over heated rotating cylinders, which transfer heat through the paper and evaporate its moisture. Rotary, spray, and fluidised-bed driers are used for other types of solids and feeds.
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