Which of the Following Are True About Humidification and Contact

question 45

Multiple Choice

Which of the following are true about humidification and contact time?
1) The longer a gas is exposed to water, the greater is the amount of evaporation.
2) The rate of gas flow through a humidifier determines contact time.
3) Low flows decrease and high flows increase relative humidity output.
4) Bubble humidifier contact time depends on the water column depth.

• A)1 and 3 only
• B)1, 2, and 4 only
• C)3 and 4 only
• D)1, 2, 3, and 4

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