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1. |
For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as |
A. | Np ‚àù NRe |
B. | Np ‚àù NRe |
C. | Np ‚Üí constant |
D. | Np ‚àù 1/NRe |
Answer» E. | |