8 questions Intermediate

ECADEMY test

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

Question 6 of 8 Intermediate

6 What may cause friction loss in the pipes?

Question 7 of 8 Intermediate

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

Question 8 of 8 Intermediate

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

Question 8 of 8 Intermediate

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Correct
01.
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
02.
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
03.
Q: What is the most effective way to stay updated on your pump’s condition?
A: Remote online monitoring
Correct
04.
Q: How is it possible to protect the motor against bad power supply?
A: By means of an electronic motor protection that senses all possible deviations
Correct
05.
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
06.
Q: What may cause friction loss in the pipes?
A: Scaling
Correct
07.
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
08.
Q: What should the minimum flow past the motor be to ensure sufficient motor cooling?
A: 0,15 m/s