What can you add to a pump to prevent it from dry-running?
Which of the following is NOT a way to reduce friction losses?
Why is it an advantage to mount your pump to a fixed base?
What happens if you double both the pump’s flow and the head?
What should you generally avoid excessive use of when working with pipework?
Test results
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Q: What can you add to a pump to prevent it from dry-running?
A: A float switch
Q: What can you add to a pump to prevent it from dry-running?
A: A source of airflow
Q: What can you add to a pump to prevent it from dry-running?
A: Nothing, you can only use pumps with built-in dry-running protection
Q: Which of the following is NOT a way to reduce friction losses?
A: Reduce the flow
Q: Which of the following is NOT a way to reduce friction losses?
A: Lower the pump inlet
Q: Which of the following is NOT a way to reduce friction losses?
A: Increase the pipe size
Q: Why is it an advantage to mount your pump to a fixed base?
A: A steady pump operates more efficiently
Q: Why is it an advantage to mount your pump to a fixed base?
A: It makes it easier to measure the pump data
Q: Why is it an advantage to mount your pump to a fixed base?
A: It helps to keep it steady in bad weather
Q: What happens if you double both the pump’s flow and the head?
A: The energy usage remains the same
Q: What happens if you double both the pump’s flow and the head?
A: The energy usage is doubled
Q: What happens if you double both the pump’s flow and the head?
A: The energy usage is quadrupled
Q: If a pump’s head is 20 metres, how high can the pump lift the water?
A: 10m
Q: If a pump’s head is 20 metres, how high can the pump lift the water?
A: 20m
Q: If a pump’s head is 20 metres, how high can the pump lift the water?
A: 30m
Q: What should you generally avoid excessive use of when working with pipework?
A: Stainless steel material
Q: What should you generally avoid excessive use of when working with pipework?
A: Elbows and bends
Q: What should you generally avoid excessive use of when working with pipework?
A: Heating boxes