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GATE 2018 CE (CE1) – Question 22

Fluid Mechanics · Continuity, momentum and energy equations · 1 mark · Multiple choice

The conventional Bernoulli equation applies to ______.

  1. viscous compressible flow
  2. inviscid compressible flow
  3. inviscid incompressible flow
  4. viscous incompressible flow

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Show answer and explanation

Correct answer: (C) inviscid incompressible flow

Explanation

The familiar pressure-head plus velocity-head plus elevation-head form follows for steady inviscid incompressible flow along a streamline without intervening energy addition or loss. The appropriate choice is **inviscid and incompressible, C**. Compressible-flow energy relations require a different pressure-density treatment.