6 questions Intermediate

ECADEMY test

35 - The role of pumps in cooling towers

This course test contains 6 questions and can be retaken at any time.

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Question 2 of 6 Intermediate

2 Why are single-stage Grundfos NB/NK pumps usually used in cooling towers?

Question 3 of 6 Intermediate

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

Question 4 of 6 Intermediate

4 How much of the 30 % of water lost to evaporation can you potentially save by using the right control?

Question 5 of 6 Intermediate

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

Question 6 of 6 Intermediate

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Correct
01.
Q: What does the hysteresis band do?
A: It determines how low the temperature can be before the fan stops running
Correct
02.
Q: Why are single-stage Grundfos NB/NK pumps usually used in cooling towers?
A: To meet requirements for high flow and low pressure
Correct
03.
Q: Does fixed-speed operation give you a greater control of energy use?
A: No
Correct
04.
Q: How much of the 30 % of water lost to evaporation can you potentially save by using the right control?
A: 20%
Correct
05.
Q: What does the air pass through on its way out of the cooling towers?
A: It passes through the drift eliminators
Correct
06.
Q: What is the main purpose of a cooling tower?
A: To transfer heat from the cooling water to the air by evaporation