Trommels employ _____________ for screening of materials?
Correct answer: B. Punched plate
- A. Fibrous cloth
- B. Punched plate
- C. Woven wire screen
- D. None of these
Explanation
Trommels are rotating cylindrical screens commonly fitted with punched plates, whose openings classify materials by size. Woven wire screens may also be used in some designs, but punched plate is the standard answer in this context.
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