8 questions Intermediate

ECADEMY test

Groundwater Pumping

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

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Question 3 of 8 Intermediate

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

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 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 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
02.
Q: What can be done to the well if sand continues to enter a well after the well development has been carried out?
A: The well driller can try to run the pump at its maximum capacity in short periods of time over a couple of days
Correct
03.
Q: In which areas is there a bigger risk of pumping corrosive groundwater?
A: In coastal areas
Correct
04.
Q: What kind of riser pipe is most likely to keep itself free from scaling?
A: Flex hoses
Correct
05.
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
06.
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
07.
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
08.
Q: What should the minimum flow past the motor be to ensure sufficient motor cooling?
A: 0,15 m/s