Examveda
Examveda

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 ∝ NRe

B. Np ∝ √NRe

C. Np → constant

D. Np ∝ 1/NRe

Answer: Option D

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