Which is the cheapest device for measuring flow / discharge rate.
(a) Venturimeter
(b) Pitot tube
(c) Orificemeter
(d) None of the mentioned
I had been asked this question in a national level competition.
The above asked question is from Bernoulli’s Equation for Real Fluids and Applications of Bernoulli’s Equation topic in section Fluid Dynamics of Fluid Mechanics