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.

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Question 1 of 10 Intermediate

1 Is the SQE pump able to provide constant pressure?

Question 2 of 10 Intermediate

2 Which of these isn’t a key dry-run protection benefit for the installer?

Question 4 of 10 Intermediate

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

Question 6 of 10 Intermediate

6 What happens if the static water level is too low?

Question 7 of 10 Intermediate

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

Question 10 of 10 Intermediate

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

Question 10 of 10 Intermediate

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Correct
01.
Q: Is the SQE pump able to provide constant pressure?
A: Yes.
Correct
02.
Q: Which of these isn’t a key dry-run protection benefit for the installer?
A: He doesn’t have to worry about water bursts
Correct
03.
Q: What is the benefit of a slow increase in speed?
A: It keeps the motor current low
Correct
04.
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Direct on line
Correct
05.
Q: How does the integrated dry-running protection work?
A: It automatically shuts down the pump if water shortage is detected.
Correct
06.
Q: What happens if the static water level is too low?
A: The water level is brought down below the inlet of the pump
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 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
09.
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
10.
Q: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
A: Between 150 V and 315 V