Physics Fluid Dynamics PMDC Conceptual Practice
PMDC Verified Question 10 of 37
If every particle of a fluid passing through a given specific point follows the exact same path as the preceding particles that passed through that point, what type of flow is this?
A
Turbulent flow
B
Unsteady flow
C
Streamline flow
D
Compressible flow
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Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Streamline flow
Concept:

Flow classification depends on the predictability and stability of the fluid particles' trajectories over time.

Formula:

$$ \text{N/A} $$

Solution:

  • In a streamline (or steady) flow, fluid particles follow smooth, continuous paths that do not cross each other.
  • Because conditions are stable, any particle arriving at a specific coordinate will perfectly mirror the trajectory of the preceding particle that was there.


Why other options are incorrect:

Turbulent flow introduces chaotic, swirling eddies where paths constantly cross and vary. Unsteady flow means velocity at a point changes over time.

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