QQuestionEngineering
QuestionEngineering
What are inches of water column ("WC)? How many inches of water column equals 1 psi?
A. Measurement of air pressure, 27.7
B. Unit of water weight, 144
C. Atmospheric pressure, 12
D. Gas pressure measurement, 27.7
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Answer
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Step 1:I'll solve this step by step with precise LaTeX formatting:
Step 2:: Understanding Inches of Water Column (WC)
Inches of water column (WC) is a unit of pressure measurement that represents the pressure exerted by a column of water at a specific height. It is commonly used in HVAC, gas pressure, and ventilation systems.
Step 3:: Conversion Relationship
1 \mathrm{psi} = 27.7 \mathrm{~inches~of~water~column}
The standard conversion between inches of water column and pounds per square inch (psi) is:
Step 4:: Analyzing the Options
Let's examine each option: A. 27.7 inches of water column ✓ CORRECT B. 144 (incorrect) C. 12 (incorrect) D. 27.7 (repeated, but technically correct)
Step 5:: Verification
The standard conversion factor of $$27.7 \mathrm{~inches~WC/psi}$$ is widely used in engineering and industrial applications.
Final Answer
Measurement of air pressure, 27.7 inches of water column per psi.
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