Question 1 of 6
Basic

What can you add to a pump to prevent it from dry-running?

Question 2 of 6
Basic

Does it create a noise inside the pump when vapourised water molecules implode?

Question 3 of 6
Basic

What does friction loss refer to?

Question 4 of 6
Basic

If a pump’s head is 20 metres, how high can the pump lift the water?

Question 5 of 6
Basic

Which measuring unit is flow typically measured in?

Question 6 of 6
Basic

Which of the following is NOT a way to reduce friction losses?

Question 6 of 6
Basic

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1: What can you add to a pump to prevent it from dry-running?
A float switch
1: What can you add to a pump to prevent it from dry-running?
A source of airflow
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1: What can you add to a pump to prevent it from dry-running?
Nothing, you can only use pumps with built-in dry-running protection
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2: Does it create a noise inside the pump when vapourised water molecules implode?
No
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2: Does it create a noise inside the pump when vapourised water molecules implode?
Yes
3: What does friction loss refer to?
A rapid decrease of flow and increase of pressure
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3: What does friction loss refer to?
The formation of air bubbles in the moving liquid
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3: What does friction loss refer to?
Contact between the moving liquid and its enclosure
4: If a pump’s head is 20 metres, how high can the pump lift the water?
10m
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4: If a pump’s head is 20 metres, how high can the pump lift the water?
20m
4: If a pump’s head is 20 metres, how high can the pump lift the water?
30m
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5: Which measuring unit is flow typically measured in?
m2
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5: Which measuring unit is flow typically measured in?
l/min
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5: Which measuring unit is flow typically measured in?
m3/h
6: Which of the following is NOT a way to reduce friction losses?
Reduce the flow
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6: Which of the following is NOT a way to reduce friction losses?
Lower the pump inlet
6: Which of the following is NOT a way to reduce friction losses?
Increase the pipe size
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