10 questions Intermediate

ECADEMY test

37 - Grundfos SQ/SQE

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

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Question 1 of 10 Intermediate

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

Question 2 of 10 Intermediate

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

Question 3 of 10 Intermediate

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

Question 5 of 10 Intermediate

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

Question 6 of 10 Intermediate

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

Question 8 of 10 Intermediate

8 Which submersible pump was replaced with a Grundfos SQ?

Question 10 of 10 Intermediate

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Correct
01.
Q: How many times higher than nominal speed does the motor current reach during the first milliseconds?
A: Seven times higher
Correct
02.
Q: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
A: Domestic water supply & Irrigation
Correct
03.
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
04.
Q: What is the benefit of a slow increase in speed?
A: It keeps the motor current low
Correct
05.
Q: What happens if the water level in the well drops below the inlet?
A: The motor power consumption stays the same
Correct
06.
Q: What is the most commonly used starting method for motors in 4” conventional pumps?
A: Direct on line
Correct
07.
Q: Why is it important to protect the pump from over- and under voltage?
A: Because large variations in power supply will damage the motor over time.
Correct
08.
Q: Which submersible pump was replaced with a Grundfos SQ?
A: A 4” submersible pump 
Correct
09.
Q: Which protection features does the SQE have?
A: Voltage handling, soft start, dry-running protection and overload protection.
Correct
10.
Q: How does the integrated dry-running protection work?
A: It automatically shuts down the pump if water shortage is detected.