Which of the following is true about Rotary pumps?
(a) These consist of gear pumps which create high pressures
(b) In internal gear pumps, a pinion gear is driven by a motor which is eccentric and the ring gear is co-axial and is driven by the pinion gear
(c) In Spur gears, vacuum created allows liquid to flow from suction to delivery line
(d) All of the mentioned
I have been asked this question at a job interview.
My doubt is from Unit Operations in section Food Processing Techniques, Fluid Mechanics and Rheology of Foods of Food Engineering