Question 1 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 2 of 6
Intermediate

Why must the pump unit be installed below the dynamic water table?

Question 3 of 6
Intermediate

How many times higher than nominal speed does the motor current reach during the first milliseconds?

Question 4 of 6
Intermediate

How does the integrated dry-running protection work?

Question 5 of 6
Intermediate

Why is it important to protect the pump from over- and under voltage?

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: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
1: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
You can find the answer here >
1: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
You can find the answer here >
2: Why must the pump unit be installed below the dynamic water table?
So you are sure to minimise your power bill.
You can find the answer here >
2: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
2: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
You can find the answer here >
3: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Four times higher
You can find the answer here >
3: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Six times higher
You can find the answer here >
3: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher
4: How does the integrated dry-running protection work?
It automatically restarts 3 minutes after shut down.
You can find the answer here >
4: How does the integrated dry-running protection work?
It prevents sand from damaging the pump.
You can find the answer here >
4: How does the integrated dry-running protection work?
It automatically shuts down the pump if water shortage is detected.
5: Why is it important to protect the pump from over- and under voltage?
Because large variations in power supply will damage the motor over time.
5: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
You can find the answer here >
5: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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 >