Question 1 of 6
Intermediate

Why is it important to protect the pump from over- and under voltage?

Question 2 of 6
Intermediate

Which submersible pump was replaced with a Grundfos SQ?

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

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

Question 5 of 6
Intermediate

Is the SQE pump able to provide constant pressure?

Question 6 of 6
Intermediate

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

Question 6 of 6
Intermediate

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1: Why is it important to protect the pump from over- and under voltage?
Because large variations in power supply will damage the motor over time.
1: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
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1: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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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: 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
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3: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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4: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Groundwater lowering & Irrigation
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4: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Domestic water supply & Groundwater lowering
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4: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Domestic water supply & Irrigation
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 must the pump unit be installed below the dynamic water table?
So you are sure to minimise your power bill.
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6: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
6: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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