1.

Reynolds (Rei) number for the impeller is given by (where Di, stirrer diameter; N, stirrer speed, ρ, density of fluid and μ, viscosity of fluid)

A. DiVρ/μ
B. Di2Nρ/μ
C. Di2Vρ/μ
D. DiNρ /μ
Answer» C. Di2Vρ/μ


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