What does QH curve show?
In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
At the very highest level, what are the two main types of pump?
Centrifugal pumps can be categorised into the following groups…
What kind of pumps would normally NOT have a radial flow impeller?
What is a main disadvantage of a centrifugal pump?
Test results
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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 does QH curve show?
A: Flow at a given head
Q: What does QH curve show?
A: Head at a given flow
Q: What does QH curve show?
A: Overall efficiency
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: At the very highest level, what are the two main types of pump?
A: Vertical pumps and horizontal pumps
Q: At the very highest level, what are the two main types of pump?
A: Positive displacement pumps and centrifugal pumps
Q: At the very highest level, what are the two main types of pump?
A: Submersible and sanitary pumps
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: 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%
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: 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