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Which of the following is/are not example/s of rotary displacement pumps?(a) Gear pump(b) Vane pump(c) Rotary piston pump(d) Centrifugal pumpThis question was posed to me in an interview for internship.My doubt is from Pumps topic in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right choice is (d) Centrifugal pump

Easiest EXPLANATION: Rotary-type positive displacement: internal GEAR, screw, shuttle block, flexible vane or sliding vane, circumferential PISTON, and flexible impeller, helical twisted or liquid-ring PUMPS.



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