What is the atmospheric pressure in imperial units?

• A. 14.7 psi
• B. 1 atm
• C. 9.8 n/m^2
• D. 32.2 psi

Answer: (A)

Atmospheric pressure at sea level is defined as 1 atmosphere (atm), which is equivalent to approximately 14.7 pounds per square inch (psi) in imperial units. This value has been established through standard scientific measurements and provides a consistent basis for pressure in engineering and atmospheric science applications.

The definition of 1 atm is critical for understanding various meteorological phenomena and other fields that require pressure measurements, such as HVAC systems, fluid mechanics, and structural analysis. By knowing that atmospheric pressure is approximately 14.7 psi, engineers can perform calculations related to fluid behaviors, pressure management, and environmental conditions with greater accuracy.

While other options may represent pressure in different units or dimensions, only the value of 14.7 psi corresponds to the standard atmospheric pressure in the imperial unit system, making it the correct choice for this question.