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

1 How many main pump types dose Grundfos produce?

Question 2 of 8 Basic

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

Question 3 of 8 Basic

3 What does ‘NPSH’ stand for in the NPSH-curve?

Question 6 of 8 Basic

6 Are axial flow impellers used in closed pump designs?

Question 8 of 8 Basic

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

Question 8 of 8 Basic

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Correct
01.
Q: How many main pump types dose Grundfos produce?
A: 10
Correct
02.
Q: In a pump curve, head, power consumption, efficiency and NPSH are shown as a function of…
A: Flow
Correct
03.
Q: What does ‘NPSH’ stand for in the NPSH-curve?
A: Net positive suction head
Correct
04.
Q: At the very highest level, what are the two main types of pump?
A: Positive displacement pumps and centrifugal pumps
Correct
05.
Q: What does QH curve show?
A: Head at a given flow
Correct
06.
Q: Are axial flow impellers used in closed pump designs?
A: No
Correct
07.
Q: What is a main disadvantage of a centrifugal pump?
A: They cannot create suction by themselves
Correct
08.
Q: How much of the world’s total volume of water is fresh water?
A: 3.5%