Question 1 of 6
Intermediate

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

Question 2 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 3 of 6
Intermediate

Is the SQE pump able to provide constant pressure?

Question 4 of 6
Intermediate

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

Question 5 of 6
Intermediate

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

Question 6 of 6
Intermediate

What is the benefit of a slow increase in speed?

Question 6 of 6
Intermediate

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1: 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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1: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
1: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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2: 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.
2: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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2: 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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3: Is the SQE pump able to provide constant pressure?
No.
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3: Is the SQE pump able to provide constant pressure?
Yes.
4: What is the most commonly used starting method for motors in 4” conventional pumps?
Direct on line
4: What is the most commonly used starting method for motors in 4” conventional pumps?
Star delta starters
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4: What is the most commonly used starting method for motors in 4” conventional pumps?
Auto transformer
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5: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Groundwater lowering & Irrigation
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5: 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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5: Which are the two most common applications in which a Grundfos SQ/SQE submersible pump is used?
Domestic water supply & Irrigation
6: What is the benefit of a slow increase in speed?
It keeps the motor current low
6: What is the benefit of a slow increase in speed?
It keeps pump movements at a minimum
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6: What is the benefit of a slow increase in speed?
It removes the need for motor contactors
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