8 questions Intermediate

ECADEMY test

17 - Groundwater Pumping

This course test contains 8 questions and can be retaken at any time.

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Question 2 of 8 Intermediate

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

Question 3 of 8 Intermediate

What may cause friction loss in the pipes?

Question 4 of 8 Intermediate

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

Question 6 of 8 Intermediate

In which areas is there a bigger risk of pumping corrosive groundwater?

Question 7 of 8 Intermediate

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

Question 8 of 8 Intermediate

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

Question 8 of 8 Intermediate

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Correct
Q: Why is it important to know the water drawdown?
A: The more the drawdown increases during pump operation, the more pressure is required to lift the groundwater to the surface
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 may cause friction loss in the pipes?
A: Scaling
Correct
Q: What kind of riser pipe is most likely to keep itself free from scaling?
A: Flex hoses
Correct
Q: What is well development?
A: A process that ensures that the well’s sand filter has been improved so the well produces clean, sand-free water
Correct
Q: In which areas is there a bigger risk of pumping corrosive groundwater?
A: In coastal areas
Correct
Q: What is the most effective way to stay updated on your pump’s condition?
A: Remote online monitoring
Correct
Q: What should the minimum flow past the motor be to ensure sufficient motor cooling?
A: 0,15 m/s