Question Bank • QB_SUB_SWCE_0090 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Fluid Mechanics

Subtopic: Continuity equation, kinematics and dynamics of flow

Question Statement:

Bernoulli's energy theorem ($\frac{p}{\rho g} + \frac{v^2}{2g} + z = \text{constant}$) along a streamline is derived based on which set of assumptions?

Options:

  • (A) Steady, incompressible, inviscid (frictionless), and irrotational flow along a streamline
  • (B) Unsteady, highly compressible, viscous turbulent flow
  • (C) Two-phase cavitating flow
  • (D) Zero gravitational field

Answer Key:

A

Step-by-Step Solution & Explanation

Euler's equation of motion integrates to Bernoulli's equation along a streamline under assumptions of steady, inviscid, incompressible fluid flow.
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