Question 1 of 6
Basic

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

Question 2 of 6
Basic

What does friction loss refer to?

Question 3 of 6
Basic

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

Question 4 of 6
Basic

What happens if you double both the pump’s flow and the head?

Question 5 of 6
Basic

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

Question 6 of 6
Basic

What should you generally avoid excessive use of when working with pipework?

Question 6 of 6
Basic

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1: Does it create a noise inside the pump when vapourised water molecules implode?
No
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1: Does it create a noise inside the pump when vapourised water molecules implode?
Yes
2: What does friction loss refer to?
A rapid decrease of flow and increase of pressure
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2: What does friction loss refer to?
The formation of air bubbles in the moving liquid
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2: What does friction loss refer to?
Contact between the moving liquid and its enclosure
3: What can you add to a pump to prevent it from dry-running?
A float switch
3: What can you add to a pump to prevent it from dry-running?
A source of airflow
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3: 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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4: What happens if you double both the pump’s flow and the head?
The energy usage remains the same
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4: What happens if you double both the pump’s flow and the head?
The energy usage is doubled
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4: What happens if you double both the pump’s flow and the head?
The energy usage is quadrupled
5: Which of the following is NOT a way to reduce friction losses?
Reduce the flow
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5: Which of the following is NOT a way to reduce friction losses?
Lower the pump inlet
5: Which of the following is NOT a way to reduce friction losses?
Increase the pipe size
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6: What should you generally avoid excessive use of when working with pipework?
Stainless steel material
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6: What should you generally avoid excessive use of when working with pipework?
Elbows and bends
6: What should you generally avoid excessive use of when working with pipework?
Heating boxes
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