At Sea Level, the Atmospheric Pressure Is Usually Equal to About

question 22

Multiple Choice

At sea level, the atmospheric pressure is usually equal to about

• A)100 millimeters of mercury
• B)2 atmospheres
• C)350 millimeters of mercury
• D)760 millimeters of mercury
• E)None of the above

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Definitions:

Psia Gauge

A pressure measurement expressed in pounds per square inch absolute, including the atmospheric pressure.

Atmospheric Pressure

Ambient pressure at sea level equivalent to 14.7 psia, 101.3 kPa, 1 atm, or 1.01 bar.

Psia

Pounds per square inch absolute. Measure of pressure values used in North America that factors in atmospheric pressure of 14.7 psi.

Atmospheric Pressure

The pressure exerted by the weight of the atmosphere, crucial for weather patterns and breathing.