Gear pump_________________?
Correct answer: A. Is a positive displacement pump
- A. Is a positive displacement pump
- B. Is a centrifugal pump
- C. Is a non-positive displacement pump
- D. Can be started with delivery valve closed
Explanation
A gear pump traps and transports a fixed volume of liquid per revolution, making it a positive-displacement pump. It must not be operated against a closed delivery valve because pressure can rise dangerously.
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