Which of the following does NOT include power required for mixing by an impeller?
(a) Rheological nature of the fluid
(b) Friction in the motor
(c) Speed, nature and type of the impeller
(d) None of the mentioned
This question was posed to me in an international level competition.
The doubt is from Unit Operations in section Sedimentation and Centrifuge, Mixing, Size Reduction and Separation and Material Handling and Transportation of Food Engineering