Question 1 of 27070
Q
A centrifugal pump produces flow with a resulting discharge head by energy conversion. It is typical for the energy conversion to follow the order of __________.
A
mechanical energy to kinetic energy to potential energy
B
mechanical energy to potential energy to kinetic energy
C
potential energy to mechanical energy to kinetic energy
D
kinetic energy to mechanical energy to potential energy
Question 1 / 270705eccef9bbacbc34ba4d45424
Question 1 of 270705eccef9bbacbc34ba4d45424

A centrifugal pump produces flow with a resulting discharge head by energy conversion. It is typical for the energy conversion to follow the order of __________.

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Question 1 of 27070
Q

A centrifugal pump produces flow with a resulting discharge head by energy conversion. It is typical for the energy conversion to follow the order of __________.

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🔍 Key Concepts

• Energy conversion in centrifugal pumps – how the impeller and volute change the form of energy • Difference between kinetic energy (velocity head) and potential energy (pressure head) in a flowing liquid • Where mechanical energy from the motor first enters the pump and what form it takes inside the impeller

💭 Think About

• Think about what the rotating impeller does to the fluid right at the blades: does it mainly increase pressure directly, or velocity first? • After the fluid leaves the impeller and enters the casing/volute, what happens to the high-velocity flow? Does that region speed it up more, or slow it down to gain pressure? • In a pump, where does the electrical/motor power show up first in the fluid— as motion (velocity) or as static pressure (head)?

✅ Before You Answer

• Be clear on the definition of kinetic energy in a pump: is it related to the fluid’s speed or its height? • Recall that discharge head mainly represents pressure head (a form of potential energy) at the pump outlet, not just velocity. • Visualize the flow path: shaft → impeller → volute/diffuser → discharge and decide in which components kinetic vs potential energy dominate.