Practice Psychrometry – Air-water Vapor Mixtures (4) - Psychrometry

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6 sample questions

Question 1.
What does DBT stand for?
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Think of how we measure normal air temperature.
Question 2.
What does WBT indicate?
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Consider the thermometer with a wet wick.
3Question 3.
What is the definition of relative humidity?
- A. Actual moisture content
- B. Moisture content relative to saturation
- C. Maximum moisture content
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Think about saturation levels of moisture.
4Question 4.
True or False: The psychrometric chart helps determine unknown properties of air if two are known.
- True
- False
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Remember its practical applications.
Question 5.
You are given a dry bulb temperature of 25°C and a wet bulb temperature of 18°C. Calculate the relative humidity and the dew point.
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Use psychrometric relationships for calculations.
Question 6.
An air conditioning system requires cooling a space from 30°C with 50% RH to 22°C at 40% RH. Describe the processes and how they can be mapped on a psychrometric chart.
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Visualize the movement on the chart to understand the changes.

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