Question 1 sur 6
Avancé

Which of these isn’t a main target for wastewater mixers?

Question 2 sur 6
Avancé

Where do vortices develop if the propeller is too close to the water surface?

Question 3 sur 6
Avancé

What is the main purpose of a closed loop tank?

Question 4 sur 6
Avancé

Why is it important to position mixers correctly?

Question 5 sur 6
Avancé

Which of these describe the specific mixing power?

Question 6 sur 6
Avancé

How did the Stargard project redesign the layout of mixers in the tank?

Question 6 sur 6
Avancé

Vous êtes satisfait de vos réponses ?

Envoyez vos réponses et obtenez le résultat final de l’évaluation.

Résultats de l’évaluation

Félicitations. Vous avez réussi l’évaluation et terminé le 20 - Mixing in Wastewater Treatment
Dommage. Vous n’avez pas réussi 20 - Mixing in Wastewater Treatment l’évaluation cette fois-ci
Badges obtenus :
Comment évalueriez-vous ce cours ?
1: Which of these isn’t a main target for wastewater mixers?
To blend liquid with solid particles
Vous trouverez la réponse ici >
1: Which of these isn’t a main target for wastewater mixers?
To ensure quick drainage from the tank
1: Which of these isn’t a main target for wastewater mixers?
To keep solid particles in suspension
Vous trouverez la réponse ici >
2: Where do vortices develop if the propeller is too close to the water surface?
At the front of the propeller
Vous trouverez la réponse ici >
2: Where do vortices develop if the propeller is too close to the water surface?
At the rear of the propeller
2: Where do vortices develop if the propeller is too close to the water surface?
Underneath the propeller
Vous trouverez la réponse ici >
3: What is the main purpose of a closed loop tank?
To create a steady, circulated flow
3: What is the main purpose of a closed loop tank?
To ensure a more energy-efficient solution
Vous trouverez la réponse ici >
3: What is the main purpose of a closed loop tank?
To prevent damaging backflow
Vous trouverez la réponse ici >
4: Why is it important to position mixers correctly?
To prevent the propellers from breaking
Vous trouverez la réponse ici >
4: Why is it important to position mixers correctly?
To neutralise vortices
Vous trouverez la réponse ici >
4: Why is it important to position mixers correctly?
To maximise the total bulk flow
5: Which of these describe the specific mixing power?
The ratio between the propeller power and the liquid volume
5: Which of these describe the specific mixing power?
The ratio between the liquid volume and the solid particles
Vous trouverez la réponse ici >
5: Which of these describe the specific mixing power?
The ratio between the propeller power and propeller size
Vous trouverez la réponse ici >
6: How did the Stargard project redesign the layout of mixers in the tank?
They gathered four mixers in the middle of the tank
6: How did the Stargard project redesign the layout of mixers in the tank?
They spread four mixers across the tank
6: How did the Stargard project redesign the layout of mixers in the tank?
They remained in the same position, but were replaced with more powerful mixers