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.

Start test

Question 2 of 8 Intermediate

2 What may cause friction loss in the pipes?

Question 3 of 8 Intermediate

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

Question 4 of 8 Intermediate

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

Question 6 of 8 Intermediate

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

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

Happy with your answers?

Submit your current answers and get the final test result.

Submit

Test results

Congratulations. You have passed the test and completed the Groundwater Pumping

Achieved badges:

Continue training Go to MyECADEMY

Sorry. You did not pass the Groundwater Pumping test this time

Correct
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
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: 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: 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
Q: In which areas is there a bigger risk of pumping corrosive groundwater?
A: In coastal areas
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: 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