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 What type of pump is a dosing pump?
A membrane pump
An AUTOADAPT pump
A centrifugal pump
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Question 2 of 8 Basic

2 What is a main disadvantage of a centrifugal pump?
They require a lot of maintenance
They contain a lot of moving parts
They cannot create suction by themselves
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Question 3 of 8 Basic

3 How many main pump types dose Grundfos produce?
3
10
12
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Question 4 of 8 Basic

4 What does ‘NPSH’ stand for in the NPSH-curve?
Net potential surface heat
Net peripheral suction height
Net positive suction head
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Question 5 of 8 Basic

5 How much of the world’s total volume of water is fresh water?
72%
About 50%
3.5%
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Question 6 of 8 Basic

6 Are axial flow impellers used in closed pump designs?
Yes
Sometimes
No
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Question 7 of 8 Basic

7 What does QH curve show?
Flow at a given head
Head at a given flow
Overall efficiency
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Question 8 of 8 Basic

8 Sanitary pumps are used in the…
Food and beverage industry
Sanitation industry
Domestic building segment, primarily for bathroom applications
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Question 8 of 8 Basic

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Correct
01.
Q: What type of pump is a dosing pump?
A: A membrane pump
Correct
02.
Q: What is a main disadvantage of a centrifugal pump?
A: They cannot create suction by themselves
Correct
03.
Q: How many main pump types dose Grundfos produce?
A: 10
Correct
04.
Q: What does ‘NPSH’ stand for in the NPSH-curve?
A: Net positive suction head
Correct
05.
Q: How much of the world’s total volume of water is fresh water?
A: 3.5%
Correct
06.
Q: Are axial flow impellers used in closed pump designs?
A: No
Correct
07.
Q: What does QH curve show?
A: Head at a given flow
Correct
08.
Q: Sanitary pumps are used in the…
A: Food and beverage industry
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