JEE Physics ยท Medium

Fluid Mechanics: Venturimeter MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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VenturimeterMediumQuestion 30924

Question

A venturimeter measures fluid flow rate by measuring:
  1. A
    Temperature difference
  2. B
    Pressure difference between wide and narrow sections
    Correct
  3. C
    Velocity directly
  4. D
    Viscosity

Correct answer

Pressure difference between wide and narrow sections

Explanation

Constriction increases velocity, decreasing pressure. Pressure drop is measured to calculate flow rate via Bernoulli's equation.