Which is not a variable head meter _________________?
Correct answer: C. Rotameter
- A. Venturimeter
- B. Pitot tube
- C. Rotameter
- D. None of these
Explanation
Venturimeters and Pitot tubes determine flow conditions from changes in pressure head or velocity head. A rotameter is a variable-area meter operating at approximately constant pressure drop, so it is not a variable-head meter.
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