What does ‘NPSH’ stand for in the NPSH-curve?
What is a main disadvantage of a centrifugal pump?
In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
Centrifugal pumps can be categorised into the following groups…
What kind of pumps would normally NOT have a radial flow impeller?
Can centrifugal pumps be connected directly to an asynchronous motor?
Test results
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Q: What does ‘NPSH’ stand for in the NPSH-curve?
A: Net potential surface heat
Q: What does ‘NPSH’ stand for in the NPSH-curve?
A: Net peripheral suction height
Q: What does ‘NPSH’ stand for in the NPSH-curve?
A: Net positive suction head
Q: In what year was the centrifugal pump invented?
A: 1689
Q: In what year was the centrifugal pump invented?
A: 1789
Q: In what year was the centrifugal pump invented?
A: 1923
Q: What is a main disadvantage of a centrifugal pump?
A: They require a lot of maintenance
Q: What is a main disadvantage of a centrifugal pump?
A: They contain a lot of moving parts
Q: What is a main disadvantage of a centrifugal pump?
A: They cannot create suction by themselves
Q: In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
A: Performance
Q: In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
A: The type of pump
Q: In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
A: Flow
Q: Centrifugal pumps can be categorised into the following groups…
A: Forward flow, backward flow, static flow
Q: Centrifugal pumps can be categorised into the following groups…
A: Vertical flow, horizontal flow, diagonal flow
Q: Centrifugal pumps can be categorised into the following groups…
A: Radial flow, mixed flow, axial flow
Q: What kind of pumps would normally NOT have a radial flow impeller?
A: Circulating pumps
Q: What kind of pumps would normally NOT have a radial flow impeller?
A: Immersible pumps
Q: What kind of pumps would normally NOT have a radial flow impeller?
A: Sewage treatment pumps
Q: Can centrifugal pumps be connected directly to an asynchronous motor?
A: Yes
Q: Can centrifugal pumps be connected directly to an asynchronous motor?
A: No
Q: Can centrifugal pumps be connected directly to an asynchronous motor?
A: Only in the case of immersible pumps
Q: How much of the world’s total volume of water is fresh water?
A: 72%
Q: How much of the world’s total volume of water is fresh water?
A: About 50%
Q: How much of the world’s total volume of water is fresh water?
A: 3.5%