Question

The Bernoulli’s equation in fluid dynamics is valid for _________

(a) Compressible flows

(b) Transient flows

(c) Continuous flows

(d) Viscous flows

I have been asked this question in an international level competition.

This intriguing question comes from Introduction to Fluid Dynamics in chapter Fluid Dynamics of Fluid Mechanics

Answer 1

The correct choice is (c) Continuous flows

To explain: To answer this equation, we need to know the assumptions used in Bernoulli’s equation. The Bernoulli’s theorem is only valid for ideal, steady, incompressible, continuous, inviscid and irrotational flows. So, out of the options, only continuous flows fit in the assumptions.