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Questions and Answers
What is the purpose of keeping the delivery valve closed after priming?
What is the purpose of keeping the delivery valve closed after priming?
- To create a forced vortex (correct)
- To increase pressure
- To avoid air bubbles in the line
- To rotate the impeller
What is the first step in the operation of a centrifugal pump?
What is the first step in the operation of a centrifugal pump?
- Filling the delivery pipe
- Priming (correct)
- Starting the electric motor
- Opening the delivery valve
How is the fluid discharged from a centrifugal pump?
How is the fluid discharged from a centrifugal pump?
- Inward with reduced velocity and pressure
- In an outward radial direction with increased velocity and pressure (correct)
- In a downward axial direction with reduced velocity and pressure
- Inward with increased velocity and pressure
What creates a partial vacuum near the eye of the impeller in a centrifugal pump?
What creates a partial vacuum near the eye of the impeller in a centrifugal pump?
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What contributes to the development of head in a centrifugal pump?
What contributes to the development of head in a centrifugal pump?
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