10 questions Intermediate

ECADEMY test

37 - Grundfos SQ/SQE

This course test contains 10 questions and can be retaken at any time.

You must answer all questions correctly to pass the test and complete the course.

Start test

Question 2 of 10 Intermediate

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

Question 4 of 10 Intermediate

4 What happens if the water level in the well drops below the inlet?

Question 7 of 10 Intermediate

7 By how much does the supply voltage decrease before the motor contactor stops the pump?

Question 9 of 10 Intermediate

9 Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?

Question 10 of 10 Intermediate

Happy with your answers?

Submit your current answers and get the final test result.

Submit

Test results

Congratulations. You have passed the test and completed the 37 - Grundfos SQ/SQE

Achieved badges:

Continue training Go to MyECADEMY

Sorry. You did not pass the 37 - Grundfos SQ/SQE test this time

Correct
01.
Q: Where is domestic groundwater extraction typically relevant?
A: In remote areas where it is too costly to extend the municipal water supply to just a few houses.
Correct
02.
Q: How many times higher than nominal speed does the motor current reach during the first milliseconds?
A: Seven times higher
Correct
03.
Q: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
A: In original 4” boreholes where sediments over the years have narrowed the hole.
Correct
04.
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption stays the same
Correct
05.
Q: Why is correct sizing of the submersible pump important?
A: 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.
Correct
06.
Q: Which protection features does the SQE have?
A: Voltage handling, soft start, dry-running protection and overload protection.
Correct
07.
Q: By how much does the supply voltage decrease before the motor contactor stops the pump?
A: More than 10 %
Correct
08.
Q: Why must the pump unit be installed below the dynamic water table?
A: To avoid the risk of dry-running during operation.
Correct
09.
Q: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
A: Domestic water supply & Irrigation
Correct
10.
Q: What is the benefit of a slow increase in speed?
A: It keeps the motor current low