8 questions Intermediate

ECADEMY test

17 - Groundwater Pumping

This course test contains 8 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 2 of 8 Intermediate

2 How does over- and under voltage, phase unbalance and phase loss impact the pump motor?

Question 3 of 8 Intermediate

3 What should the minimum flow past the motor be to ensure sufficient motor cooling?

Question 4 of 8 Intermediate

4 What kind of riser pipe is most likely to keep itself free from scaling?

Question 5 of 8 Intermediate

5 What could be the consequences of using an undersized pump in a well?

Question 6 of 8 Intermediate

6 On top of energy-efficient pump operation, how does a frequency drive benefit your installation?

Question 7 of 8 Intermediate

7 By-pass control is an efficient way of performance regulating a pump but what is the downside of the process?

Question 8 of 8 Intermediate

8 What is the most effective way to stay updated on your pump’s condition?

Question 8 of 8 Intermediate

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Correct
Q: Why is it a good idea to make a well where the groundwater level is as high as possible?
A: The shorter the distance is to the water the less expensive it is to make the borehole and subsequently to pump the water to the surface
Correct
Q: How does over- and under voltage, phase unbalance and phase loss impact the pump motor?
A: It raises the motor temperature, reducing the lifetime
Correct
Q: What should the minimum flow past the motor be to ensure sufficient motor cooling?
A: 0,15 m/s
Correct
Q: What kind of riser pipe is most likely to keep itself free from scaling?
A: Flex hoses
Correct
Q: What could be the consequences of using an undersized pump in a well?
A: The pump may not be able to deliver the required capacity
Correct
Q: On top of energy-efficient pump operation, how does a frequency drive benefit your installation?
A: It comes with a built-in motor protection
Correct
Q: By-pass control is an efficient way of performance regulating a pump but what is the downside of the process?
A: Energy is wasted as the pump continues to run at full speed
Correct
Q: What is the most effective way to stay updated on your pump’s condition?
A: Remote online monitoring