Referring to the illustrated psychrometric...

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Question 1 of 2066636eee28f7522a1c51f12d

Referring to the illustrated psychrometric chart, suppose during the heating season that air passes over a heating coil, and this results in sensible heat gain with no change in moisture content. What statement represents the direction of the air conditioning process line? Illustration GS-RA-22

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Question 1 of 20

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🔍 Key Concepts

• On a psychrometric chart, horizontal movement usually indicates a change in dry-bulb temperature at constant moisture content (constant humidity ratio). • Sensible heat gain means the air temperature changes but the actual amount of water vapor in the air does not change. • During the heating season, air passing over a heating coil will generally increase in dry-bulb temperature without adding or removing moisture if no humidifier is involved.

💭 Think About

• On the given chart, which axis or direction corresponds to dry-bulb temperature and which corresponds to moisture content / grains of moisture? • If the process is sensible heating only (no moisture added or removed), should you move along a line of constant grains of moisture or change grains of moisture? In which direction does temperature increase on this chart? • Compare the answer choices: which ones show constant moisture and which ones show constant temperature? Then among the constant-moisture options, which direction corresponds to heating rather than cooling?.

✅ Before You Answer

• Identify which direction on the chart represents increasing dry-bulb temperature (°F). • Confirm which lines or grid spacing represent constant grains of moisture / humidity ratio so you know what “no change in moisture content” looks like graphically. • Before choosing, verify that your option shows temperature increasing and moisture constant at the same time.

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