Calcium ammonium nitrate (a fertiliser) is dried in a _________________ dryer?
Correct answer: A. Rotary
- A. Rotary
- B. Vacuum
- C. Tunnel
- D. Tray
Explanation
Calcium ammonium nitrate is commonly dried industrially in a rotary dryer, which provides continuous solids handling and good contact with heated drying gas. Vacuum, tunnel and tray dryers are less typical for this large-scale fertilizer service.
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