Certified Hyperbaric Technologist Test Hyperbaric Physics Fundamentals 4

Question 1

Charles's Law relates gas volume to which variable at constant pressure?

Accepted Answer

Absolute temperature

Answer

Mass

Answer

Partial pressure

Answer

Density

Question 2

Why does the temperature inside a hyperbaric chamber rise during compression?

Accepted Answer

Compression of gas releases heat (adiabatic heating)

Answer

Friction of the door seals

Answer

Electrical heaters activate

Answer

Oxygen reacts with metal

Question 3

What temperature change occurs inside a chamber during decompression?

Accepted Answer

Temperature cools due to gas expansion

Answer

Temperature rises sharply

Answer

No change occurs

Answer

Temperature becomes unstable then doubles

Question 4

The combined gas law incorporates the relationships among which three variables?

Accepted Answer

Pressure, volume, temperature

Answer

Mass, volume, density

Answer

Partial pressure, solubility, depth

Answer

Force, area, time

Question 5

Gay-Lussac's Law states that at constant volume, gas pressure is proportional to what?

Accepted Answer

Absolute temperature

Answer

Volume

Answer

Surface area

Answer

Gas solubility

Question 6

Why is fire risk a serious concern in hyperbaric environments?

Accepted Answer

Elevated oxygen partial pressure accelerates combustion

Answer

High humidity ignites materials

Answer

Low temperatures cause sparks

Answer

Nitrogen becomes flammable

Question 7

When using absolute temperature in gas law calculations, which scale is required?

Accepted Answer

Kelvin

Answer

Celsius

Answer

Fahrenheit

Answer

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