8 questions Basic

ECADEMY test

Basic Principles and Pump Types

This course test contains 8 questions and can be retaken at any time.

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Question 1 of 8 Basic

In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…

Question 2 of 8 Basic

What kind of pumps would normally NOT have a radial flow impeller?

Question 3 of 8 Basic

How many main pump types dose Grundfos produce?

Question 4 of 8 Basic

What type of pump is a dosing pump?

Question 5 of 8 Basic

Are axial flow impellers used in closed pump designs?

Question 7 of 8 Basic

How much of the world’s total volume of water is fresh water?

Question 8 of 8 Basic

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Correct
Q: In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
A: Flow
Correct
Q: What kind of pumps would normally NOT have a radial flow impeller?
A: Sewage treatment pumps
Correct
Q: How many main pump types dose Grundfos produce?
A: 10
Correct
Q: What type of pump is a dosing pump?
A: A membrane pump
Correct
Q: Are axial flow impellers used in closed pump designs?
A: No
Correct
Q: What makes semi-axial flow impellers different from axial flow impellers?
A: They subject the fluid to a degree of radial flow
Correct
Q: How much of the world’s total volume of water is fresh water?
A: 3.5%
Correct
Q: What does QH curve show?
A: Head at a given flow