Question 1 of 6
Intermediate

What does biofilm do?

Question 2 of 6
Intermediate

What can scaling lead to?

Question 3 of 6
Intermediate

What does the hysteresis band do?

Question 4 of 6
Intermediate

What does the air pass through on its way out of the cooling towers?

Question 5 of 6
Intermediate

Does fixed-speed operation give you a greater control of energy use?

Question 6 of 6
Intermediate

The typical choice of Grundfos pump is a single-stage NB/NK pump with what?

Question 6 of 6
Intermediate

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1: What does biofilm do?
It leads to an overdosing of chemials
You can find the answer here >
1: What does biofilm do?
It reduces the capacity of the cooling tower
1: What does biofilm do?
It leads to scaling
You can find the answer here >
2: What can scaling lead to?
Increased energy consumption
2: What can scaling lead to?
Increased concentration of chemicals
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2: What can scaling lead to?
Increased water pressure in the pipes
You can find the answer here >
3: What does the hysteresis band do?
It ensures that the fan starts when you exceed a set temperature
You can find the answer here >
3: What does the hysteresis band do?
It determines how low the temperature can be before the fan stops running
3: What does the hysteresis band do?
Nothing – it’s a made-up phrase
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4: What does the air pass through on its way out of the cooling towers?
It passes through the fill
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4: What does the air pass through on its way out of the cooling towers?
It passes through the drift eliminators
4: What does the air pass through on its way out of the cooling towers?
It doesn’t pass through anything
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5: Does fixed-speed operation give you a greater control of energy use?
Yes
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5: Does fixed-speed operation give you a greater control of energy use?
No
6: The typical choice of Grundfos pump is a single-stage NB/NK pump with what?
High flow and low pressure
6: The typical choice of Grundfos pump is a single-stage NB/NK pump with what?
High pressure and low flow
You can find the answer here >