6 questions Advanced

ECADEMY test

20 - Mixing in Wastewater Treatment

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 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 20 - Mixing in Wastewater Treatment

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 20 - Mixing in Wastewater Treatment 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: Which of these isn’t a main target for wastewater mixers?
A: To ensure quick drainage from the tank
Correct
Q: What is the aim of thrust-to-power sizing?
A: Deliver a sufficient thrust with the least possible energy consumption
Correct
Q: What are deadzones?
A: Areas that are compromised during the mixing process
Correct
Q: Where do vortices develop if the propeller is too close to the water surface?
A: At the rear of the propeller
Correct
Q: How much was the average velocity of the volume improved by?
A: 30%
Correct
Q: How did the Stargard project redesign the layout of mixers in the tank?
A: They spread four mixers across the tank