Which of the following is untrue about non-return valves?
(a) They’re also called foot valves as they’re present at the foot of centrifugal pumps to prevent priming
(b) They prevent flow in the opposite direction even if the pressure increases in the opposite direction
(c) All of the mentioned
(d) None of the mentioned
This question was addressed to me by my college director while I was bunking the class.
I would like to ask this question from Unit Operations in section Food Processing Techniques, Fluid Mechanics and Rheology of Foods of Food Engineering