Which of the following is not a differential pressure flow meter ?
Correct answer: B. Rotameter
- A. Flow nozzle
- B. Rotameter
- C. Orificemeter
- D. Venturimeter
Explanation
A rotameter measures flow from the position of a float in a tapered tube and is therefore a variable-area meter. Flow nozzles, orificemeters, and venturimeters infer flow from the pressure difference they create.
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