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

Question 2 of 6
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How much was the average velocity of the volume improved by?

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What is the aim of thrust-to-power sizing?

Question 4 of 6
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What are deadzones?

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Which of these describe the specific mixing power?

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

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1: Which of these isn’t a main target for wastewater mixers?
To blend liquid with solid particles
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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
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2: How much was the average velocity of the volume improved by?
20%
2: How much was the average velocity of the volume improved by?
25%
2: How much was the average velocity of the volume improved by?
30%
3: What is the aim of thrust-to-power sizing?
Maintain a steady momentum and a constant required thrust rate
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3: What is the aim of thrust-to-power sizing?
Deliver a sufficient thrust with the least possible energy consumption
3: What is the aim of thrust-to-power sizing?
Run the power at the limit to deliver maximum thrust when necessary
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4: What are deadzones?
Areas that are compromised during the mixing process
4: What are deadzones?
Areas consisting of infected water
4: What are deadzones?
Areas in which the homogeneity is high
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
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5: Which of these describe the specific mixing power?
The ratio between the propeller power and propeller size
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6: Where do vortices develop if the propeller is too close to the water surface?
At the front of the propeller
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6: Where do vortices develop if the propeller is too close to the water surface?
At the rear of the propeller
6: Where do vortices develop if the propeller is too close to the water surface?
Underneath the propeller
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