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1. |
Hold up of material in a operating rotary drier is in the range of___________________? |
A. | 0.05 to 0.15 |
B. | 0.25 to 0.50 |
C. | 0.5 to 0.8 |
D. | 0.8 to 0.9 |
Answer» B. 0.25 to 0.50 | |