Question 1 of 6
Intermediate

How long did it take to replace the pump with a Grundfos SQ?

Question 2 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 3 of 6
Intermediate

What is the most commonly used starting method for motors in 4” conventional pumps?

Question 4 of 6
Intermediate

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

Question 5 of 6
Intermediate

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

Question 6 of 6
Intermediate

In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?

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: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
You can find the answer here >
1: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
1: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
You can find the answer here >
2: 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.
2: 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 >
2: 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 >
3: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
3: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
You can find the answer here >
3: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
You can find the answer here >
4: 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 >
4: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
4: 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 >
5: 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 >
5: 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 >
5: How many times higher than nominal speed does the motor current reach during the first milliseconds?
Seven times higher
6: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start reduces over-pressure in your piping.
You can find the answer here >
6: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
It reduces the occurrence of water hammer in the pipes and minimises wear during start-up.
6: In addition to limiting the current draw from the mains during start-up of the pump, how does the soft-start functionality benefit operation?
Soft start prevents the motor from getting warm.
You can find the answer here >