GATE CE 2025 Set 1 — Question 30

MSQ+1 / -0EasyBernoulli's EquationFluid Kinematics & DynamicsWater Resources Engineering

Water Resources Engineering → Fluid Kinematics & Dynamics → Bernoulli's Equation

Last updated 5 September 2026

Question

For the Bernoulli’s equation to be applicable in a fluid flow situation, which of the following conditions is/are to be satisfied:

Correct answer (A) Fluid should be frictionless; (B) Fluid should be incompressible; (C) Flow should be steady Solution Bernoulli's equation is derived based on several key assumptions for the fluid flow: 1. Steady flow : The flow parameters at any point do not change with time. 2. Incompressible flow : The density of the fluid remains constant. 3. Frictionless (Inviscid) flow : Viscous forces are negligible. 4. Flow along a streamline : The equation applies between any two points on the same streamline. If the flow is also irrotational, the equation applies between any two points in the flow field. Option D is incorrect because the assumption is that the flow is irrotational, not rotational. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) Fluid should be frictionless; (B) Fluid should be incompressible; (C) Flow should be steady Solution Bernoulli's equation is derived based on several key assumptions for the fluid flow: 1. Steady flow : The flow parameters at any point do not change with time. 2. Incompressible flow : The density of the fluid remains constant. 3. Frictionless (Inviscid) flow : Viscous forces are negligible. 4. Flow along a streamline : The equation applies between any two points on the same streamline. If the flow is also irrotational, the equation applies between any two points in the flow field. Option D is incorrect because the assumption is that the flow is irrotational, not rotational.

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