Barometric Pressure Calculation Quiz
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Questions and Answers

What is the approximate percentage of oxygen in the air a person inhales?

  • 30%
  • 40%
  • 10%
  • 20% (correct)
  • Which of the following gases is NOT mentioned as a major component of the air a person inhales?

  • Oxygen
  • Helium (correct)
  • Carbon Dioxide
  • Nitrogen
  • What can we speak of when the ambient air pressure at a workplace is significantly different from the standard atmospheric pressure at sea level?

  • Hypobaric effect (correct)
  • Hyperbaric effect
  • Isobaric effect
  • Barometric effect
  • What is another term for atmospheric pressure?

    <p>Barometric pressure</p> Signup and view all the answers

    What instrument is used for measuring atmospheric pressure?

    <p>Barometer</p> Signup and view all the answers

    What is the standard atmospheric pressure at sea level expressed in kilopascals (kPa)?

    <p>101.5 kPa</p> Signup and view all the answers

    Which pressure is defined as the weight of the air above us?

    <p>Atmospheric pressure</p> Signup and view all the answers

    What is the typical rate at which barometric pressure increases per 100 meters of vertical depth?

    <p>1 kPa</p> Signup and view all the answers

    In a mine environment, how does barometric pressure change with depth?

    <p>It increases by 1 kPa per 100 meters</p> Signup and view all the answers

    Which group of workers is likely to experience a pressure decrease job according to the text?

    <p>Divers</p> Signup and view all the answers

    What principle demonstrates the influence of pressure on gas exchange in the body according to the text?

    <p>Boyle's Law</p> Signup and view all the answers

    How does atmospheric pressure change for a person below the sea surface compared to a person on the sea surface?

    <p>It increases</p> Signup and view all the answers

    At high altitudes with low barometric pressure, what effect does it have on the diffusion of oxygen into the blood?

    <p>Less oxygen diffuses into the blood</p> Signup and view all the answers

    According to Boyle's law, what happens to the volume of air when the pressure decreases from 100 kPa to 80 kPa, assuming constant temperature?

    <p>Increases</p> Signup and view all the answers

    How does working at high altitudes affect the O2 saturation levels in the body compared to sea level?

    <p>O2 saturation decreases</p> Signup and view all the answers

    What is the relationship between barometric pressure and the amount of available oxygen at high altitudes?

    <p>Both barometric pressure and oxygen amount decrease</p> Signup and view all the answers

    Why does a reduction in barometric pressure at high altitudes lead to a decrease in the diffusion of oxygen into the blood?

    <p>Decreased oxygen content in the air</p> Signup and view all the answers

    In airplanes, what happens to barometric pressure as altitude increases?

    <p>Barometric pressure decreases</p> Signup and view all the answers

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