Fundamentals of Industrial Instrumentation and Process Control

| 1. | The dry bulb of a wet/dry thermometer reads 120 F. What is the relative humidity if the wet bulb reads ( a) 90 F, ( b) 82 F, ( c) 75 F? |
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| 2. | The wet bulb of a wet/dry thermometer reads 85 F. What will the dry bulb read if the relative humidity is ( a) 80 percent, ( b) 60 percent, ( c) 30 percent? |
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| 3. | What is the relative humidity if the wet and dry bulbs in a wet/dry thermometer read 75 F and 85 F respectively? |
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| 4. | The dry bulb of a wet/dry thermometer reads 60 F, and the relative humidity is 47 percent. What will the wet bulb read and what is the absolute humidity? |
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| 5. | The wet and dry bulbs of a wet/dry thermometer read 75 F and 112 F, respectively. What is the relative and absolute humidity? |
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| 6. | If the air temperature is 85 F, what is the water vapor pressure corresponding to a relative humidity of 55 percent and at 55 F with 85 percent relative humidity? |
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| 7. | How much water is required to raise the relative humidity of air from 25 to 95 percent if the temperature is held constant at 95 F? |
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| 8. | How much heat and water are added per pound of dry air to increase the relative humidity from 15 to 80 percent with a corresponding temperature increase from 42 to 95 F? |
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| 9. | How much water does dry air contain at105 F and 55 percent relative humidity? |
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| 10. | How much... |