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Question 30993
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Fluid Mechanics: Bernoulli's Theorem MCQ

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

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Bernoulli's TheoremHardQuestion 30993

Question

Venturimeter throat pressure may fall below atmospheric. This is a problem because:
  1. A
    Flow reverses
  2. B
    Air or vapour may bubble in at the throat (cavitation)
    Correct
  3. C
    Pipe ruptures
  4. D
    Measurement becomes negative

Correct answer

Air or vapour may bubble in at the throat (cavitation)

Explanation

If throat pressure falls below vapour pressure, liquid vaporises forming bubbles — cavitation. This damages pipes and pumps.

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