What is the standard atmospheric pressure at sea level in psi?

What is the standard atmospheric pressure at sea level in psi?

• A. 9.8 psi
• B. 5.2 psi
• C. 21.0 psi
• D. 14.7 psi

Answer: (D)

Standard atmospheric pressure at sea level is defined as one atmosphere, which equals about 101.3 kPa, 760 mmHg, and roughly 14.7 psi. That 14.7 psi value is the baseline pressure used for lots of hazmat calculations and pressure references, so it’s the correct sea-level pressure in psi. The other numbers don’t match this standard reference (they’re either too low or too high for sea-level atmosphere).

Standard atmospheric pressure at sea level is defined as one atmosphere, which equals about 101.3 kPa, 760 mmHg, and roughly 14.7 psi. That 14.7 psi value is the baseline pressure used for lots of hazmat calculations and pressure references, so it’s the correct sea-level pressure in psi. The other numbers don’t match this standard reference (they’re either too low or too high for sea-level atmosphere).