Question 1 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 2 of 6
Intermediate

Is the SQE pump able to provide constant pressure?

Question 3 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 4 of 6
Intermediate

What is the benefit of a slow increase in speed?

Question 5 of 6
Intermediate

What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?

Question 6 of 6
Intermediate

Where is domestic groundwater extraction typically relevant?

Question 6 of 6
Intermediate

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 37 - Grundfos SQ/SQE
Sorry. You did not pass the 37 - Grundfos SQ/SQE test this time
Achieved badges:
How would you rate this course?
1: Why is correct sizing of the submersible pump important?
Because an undersized pump will not be able to deliver the required flow and pressure and an oversized pump reduces energy efficiency, which increases operational costs.
1: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
You can find the answer here >
1: Why is correct sizing of the submersible pump important?
Because too big a pump will ruin the taps due to too high pressure.
You can find the answer here >
2: Is the SQE pump able to provide constant pressure?
No.
You can find the answer here >
2: Is the SQE pump able to provide constant pressure?
Yes.
3: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
3: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
You can find the answer here >
3: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
You can find the answer here >
4: What is the benefit of a slow increase in speed?
It keeps the motor current low
4: What is the benefit of a slow increase in speed?
It keeps pump movements at a minimum
You can find the answer here >
4: What is the benefit of a slow increase in speed?
It removes the need for motor contactors
You can find the answer here >
5: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 100 V and 250 V
You can find the answer here >
5: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 150 V and 315 V
5: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 230 V and 400 V
You can find the answer here >
6: Where is domestic groundwater extraction typically relevant?
In big cities.
You can find the answer here >
6: Where is domestic groundwater extraction typically relevant?
In remote areas where it is too costly to extend the municipal water supply to just a few houses.
6: Where is domestic groundwater extraction typically relevant?
In smaller and medium sized towns.
You can find the answer here >