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SSC CHSL 2020 PYQ — Question 30

SSC CHSL - 19th October 2020 - Shift 1 • General Awareness • Q30

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What is the normal air pressure at sea level?

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Correct answer: C

Explanation

The correct answer is option 3 i.e 1013.25 millibars.

  • Atmospheric pressure, also known as barometric pressure is the pressure within the atmosphere of Earth.
  • The standard atmosphere is a unit of pressure defined as 101,325 Pa (1,013.25 hPa; 1,013.25 mbar), which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.
  • The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth, that is, the Earth's atmospheric pressure at sea level is approximately 1 atm.