6 questions Advanced

ECADEMY test

28 - The basics of desalination

This course test contains 6 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 3 of 6 Advanced

How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?

Question 6 of 6 Advanced

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 28 - The basics of desalination

Achieved badges:

How would you rate this course?

You are welcome to add your rating of this course. Remember that you have to be logged in before you take the test to be able to give your rating.

Continue training Go to MyECADEMY

Sorry. You did not pass the 28 - The basics of desalination test this time

How would you rate this course?

You are welcome to add your rating of this course. Remember that you have to be logged in before you take the test to be able to give your rating.

Correct
Q: Why are precise dosing pumps essential in the pre-treatment process?
A: They ensure that the exact amount of chemicals is used, keeping the cost of production to a minimum.
Correct
Q: How does a pressure exchanger bring down the costs of production?
A: It transfers the pressure from the expelled brine to the intake seawater using a rotor, reducing the need for high-pressure pumps.
Correct
Q: How much of the energy needed to drive the reverse osmosis process will a pressure exchanger provide?
A: 60%
Correct
Q: How does reverse osmosis in desalination work?
A: High-pressure pumps force seawater through a membrane to separate water molecules from minerals, bacteria and other impurities.
Correct
Q: Why is it essential that the flushing procedure runs perfectly?
A: Flushing prevents premature corrosion and increases system reliability
Correct
Q: Why does the permeate water have to be further treated after the reverse osmosis process?
A: To ensure the right PH-value and to add important minerals that have been filtered away.