HYPERBARIC STUDY QUESTIONS AND
CORRECT ANSWERS VERIFIED LATEST
2023-2024 GRADE A +
Pressure is defined as - CORRECT ANSWER >>The force per unit area acting on a surface in a direction perpendicular to that surface
Gas is defined as - CORRECT ANSWER >>A phase of matter
In the gas phase, the atoms or molecules basically move - CORRECT ANSWER >>Randomly
Liquids change to a gas at - CORRECT ANSWER >>their respective boiling points
Hydraulics is a branch of science and engineering concerned with the mechanical properties of - CORRECT ANSWER >>Liquids
When applying pressure to a fluid, the pressure is exerted - CORRECT ANSWER >>In all directions equally
A mechanical gauge is used when measuring gas pressure in a sealed container. For all common pressure gauges, the pressure indicated on the gauge is - CORRECT ANSWER >>Less than absolute pressure because gauges (and gauge pressures) ignore the ambient (barometric) pressure around us. They ony measure the extra pressure in the container.
Absolute pressure can be defined as - CORRECT ANSWER>>The amount of pressure within the sealed vessel + the amount of pressure outside the sealed vessel
Absolute pressure can also be defined as - CORRECT ANSWER>>Gauge pressure + atmosphere, total pressure and,true pressure.
- atmosphere equals - CORRECT ANSWER >>760
mmHg
14.7 psi
33 fsw
The barometric pressure in Denver (elevation 5000 ft) is less than barometric pressure at sea level - CORRECT ANSWER >>True
To convert from ATA to fsw - CORRECT ANSWER >>subtract 1, then multiply by 33
To convert ATA to mmHg - CORRECT ANSWER >>multiply by 760 mmHg
To convert ATA to PSI - CORRECT ANSWER >>subtract 1, then multiply by 14.7
To convert FSW to ATA - CORRECT ANSWER >>divide by 33, then add 1
Boyle's law is about the - CORRECT ANSWER >>pressure- volume relationship
Which gas law has an inversely proportional relationship - CORRECT ANSWER >>Boyle's law
According to Boyle's law, (assuming the temperature remains constant) when the pressure increases, the volume - CORRECT ANSWER>>Decreases proportionally
When applying boyle's Law to the human body, we worry about air-filled spaces being shrunk (or squeezed) when pressure around the body increases. This particular type of damage is known as. - CORRECT ANSWER>>Barotrauma
Boyle's Equation is - CORRECT ANSWER >>P1xV1= P2xV2
Charles law is about the - CORRECT ANSWER >>temperature- volume relationship
According to Charle's law, the volume in a flexible container,like a balloon, will ________ when the tempature increases (assuming the pressure remains constant). - CORRECT ANSWER>>Increase proportionally
According to Charle's law, the temperature in a flexible container, like a balloon, will______ when the volume increases (assuming the pressure remains constant) - CORRECT ANSWER>>Increase proportionally
Gay-Lussac's law is about - CORRECT ANSWER>>Temperature-pressure relationship
According to Gay-Lussac's law, the temperature in a rigid container, like a scuba tank or a hyperbaric chamber, will______ when the pressure increases (assuming the volume remains constant) - CORRECT ANSWER >>Increase proportionally
According to Gay-Lussac's law, the temperature in a rigid container,like a scuba tank or a hyperbaric chamber, will _______ when the pressure decreases (assuming the volume remains constant) - CORRECT ANSWER >>Decrease proportionally
Gay-Lussac's Law (in the hyperbaric chamber) is important to understand because when we start increasing the pressure in the chamber, the patient is likely to - CORRECT ANSWER>>Complain of being hot
Gay-Lussac's Law (in the hyperbaric chamber) is important to understand because when we start decreasing the pressure in the chamber, the patient is likely to - CORRECT ANSWER>>Complain of being cold
"Adiabatic heating" and "adiabatic cooling" refer to - CORRECT ANSWER>>The temperature rise and temperature drop when chamber pressure changes
GAy-Lussac's Law (in scuba diving) is important to understand because when we start increasing the pressure in a scuba tank (during a refill at the scuba shop), the tank will get _____ during the refill_____ while it sits at room temperature. This will cause the pressure of gas in the cylinder to _______ - CORRECT ANSWER>>Warmer;cool;decrease
