Question 1 of 6
Intermediate

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

Question 2 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?

Question 5 of 6
Intermediate

Is the SQE pump able to provide constant pressure?

Question 6 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 6 of 6
Intermediate

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1: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
1: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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1: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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2: Which submersible pump was replaced with a Grundfos SQ?
A 4” submersible pump 
2: Which submersible pump was replaced with a Grundfos SQ?
A 3” submersible pump
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2: Which submersible pump was replaced with a Grundfos SQ?
A 5” submersible pump 
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3: Which of these isn’t a key dry-run protection benefit for the installer?
The installer can avoid costly callbacks
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3: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about additional components
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3: Which of these isn’t a key dry-run protection benefit for the installer?
The installer doesn’t have to worry about water bursts
4: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In wells with water temperature up to 60° C.
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4: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In installations that require constant pressure.
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4: The 3” SQ pump is obviously ideal for new boreholes but where can it also be used?
In original 4” boreholes where sediments over the years have narrowed the hole.
5: Is the SQE pump able to provide constant pressure?
No.
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5: Is the SQE pump able to provide constant pressure?
Yes.
6: 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.
6: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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6: Why is correct sizing of the submersible pump important?
Because too big a pump will ruin the taps due to too high pressure.
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