Practice Water Vapour (moisture) (1.2) - Psychrometrics and Air Conditioning Processes

Practice: Water Vapour (Moisture)

Lesson 1.2Psychrometrics and Air Conditioning Processes

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10 questions

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4 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does DBT stand for?
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Think about the temperature we measure.
Question 2.
What is the importance of WBT?
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Consider what it measures.
3Question 3.
What does the term 'relative humidity' mean?
- It is the temperature of dry air
- It measures the current moisture level compared to saturation
- It is always a fixed number
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Remember, it's all about the moisture in the air!
4Question 4.
True or False: The Dew Point Temperature is the temperature at which air becomes saturated.
- True
- False
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Think about when you see dew forming.
Question 5.
A room has a DBT of 24°C and a WBT of 20°C. Calculate the relative humidity using the psychrometric table.
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Locate the intersection point on the psychrometric chart.
Question 6.
In a humidifier system, you need to raise the humidity ratio from 0.008 to 0.015 in a room of 100 m³ at a DBT of 22°C. Calculate how much water vapor is needed.
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Convert the volume to mass using density and the ideal gas law.

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