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HBO CHT Exam Questions and Answers (100%
Correct Answers) Already Graded A+
Pressure is defined as?Ans: The force per unit area acting on a surface in
a direction perpendicular to that surface
Force is defined as?Ans: An External cause responsible for any change
of physical system.
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Acceleration is defined as?Ans: The rate of change (or time derivative)
of velocity.
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Gas is defined as?Ans: A phase of matter
Solid is defined as?Ans: A liquid that is at its freezing point.
Plasma is defined as?Ans: Atoms or molecules that have become
ionized.
Liquid is defined as?Ans: A solid that is at its melting point
In the gas phase, the atoms or molecules basically move?Ans: Randomly
Liquids change to a gas at?Ans: Their respective boiling points! Think
about water turning to steam when it boils
When applying pressure to a fluid, the pressure is exerted?Ans: In all
directions equally. (pascal's law)
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Hydraulics is a branch of science and engineering concerned with the
mechanical properties of?Ans: Liquids! Pneumatic refers to gas fyi
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?Ans: Less than the absolute pressure (Gauges (and gauge
pressures) ignore the ambient (barometric) pressure around us.
Absolute pressure can be defined as?Ans: The amount of pressure within
the sealed vessel + the amount of pressure outside the sealed vessel.
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Gauge pressure?Ans: The amount of pressure within the sealed vessel
only
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Ambient pressure?Ans: The amount of pressure outside of the sealed
vessel only.
Absolute pressure can be defined as?Ans: Gauge pressure +
atmospheric pressure, Total pressure, True pressure
1 Atm worth of pressure?Ans: 760 mmHg, 14.7 PSI, 33 FSW
Barometric pressure in Denver, CO (elevation 5000 ft) is less than
barometric pressure at sea level true or false?Ans: True
To Convert from ATA to mmHgAns: Multiply by 760
To Convert from ATA to FSWAns: Subtract 1, then multiply by 33
To convert from ATA to PSIAns: Subtract 1, then multiply by 14.7
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To convert from FSW to ATAAns: Divide by 33, then add 1
To convert from FSW to ATAAns: Add 33, then divide by 33
To convert from PSI to ATAAns: Divide by 14.7, then add 1
To convert from PSI to ATAAns: Add 14.7, then divide by 14.7
To convert from mmHg to ATAAns: Divide by 760
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To convert from PSIG to PSIAAns: Add 14.7, PSIG means "pound per
square inch gauge". PSIA means pounds per square ince absolute.
Guru01 - Stuvia
Boyle's law is about the?Ans: Pressure-volume relationship. Boyle's law
says that with temperature constant, the volume of a gas is inversely
proportional to the pressure.
According to Boyle's Law, (assuming the temperature remains constant)
when the pressure increases, the volume?Ans: 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 is known as?Ans: Barotrauma
Boyle's law equation?Ans: P1 x V1=P2 xV2
Charles law is about the?Ans: Temperature-volume relationship, With
pressure constant, the volume of a gas is directly proportional to the
temperature.
1
HBO CHT Exam Questions and Answers (100%
Correct Answers) Already Graded A+
Pressure is defined as?Ans: The force per unit area acting on a surface in
a direction perpendicular to that surface
Force is defined as?Ans: An External cause responsible for any change
of physical system.
© 2026 Assignment Expert
Acceleration is defined as?Ans: The rate of change (or time derivative)
of velocity.
Guru01 - Stuvia
Gas is defined as?Ans: A phase of matter
Solid is defined as?Ans: A liquid that is at its freezing point.
Plasma is defined as?Ans: Atoms or molecules that have become
ionized.
Liquid is defined as?Ans: A solid that is at its melting point
In the gas phase, the atoms or molecules basically move?Ans: Randomly
Liquids change to a gas at?Ans: Their respective boiling points! Think
about water turning to steam when it boils
When applying pressure to a fluid, the pressure is exerted?Ans: In all
directions equally. (pascal's law)
,For Expert help and assignment handling,
2
Hydraulics is a branch of science and engineering concerned with the
mechanical properties of?Ans: Liquids! Pneumatic refers to gas fyi
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?Ans: Less than the absolute pressure (Gauges (and gauge
pressures) ignore the ambient (barometric) pressure around us.
Absolute pressure can be defined as?Ans: The amount of pressure within
the sealed vessel + the amount of pressure outside the sealed vessel.
© 2026 Assignment Expert
Gauge pressure?Ans: The amount of pressure within the sealed vessel
only
Guru01 - Stuvia
Ambient pressure?Ans: The amount of pressure outside of the sealed
vessel only.
Absolute pressure can be defined as?Ans: Gauge pressure +
atmospheric pressure, Total pressure, True pressure
1 Atm worth of pressure?Ans: 760 mmHg, 14.7 PSI, 33 FSW
Barometric pressure in Denver, CO (elevation 5000 ft) is less than
barometric pressure at sea level true or false?Ans: True
To Convert from ATA to mmHgAns: Multiply by 760
To Convert from ATA to FSWAns: Subtract 1, then multiply by 33
To convert from ATA to PSIAns: Subtract 1, then multiply by 14.7
, For Expert help and assignment handling,
3
To convert from FSW to ATAAns: Divide by 33, then add 1
To convert from FSW to ATAAns: Add 33, then divide by 33
To convert from PSI to ATAAns: Divide by 14.7, then add 1
To convert from PSI to ATAAns: Add 14.7, then divide by 14.7
To convert from mmHg to ATAAns: Divide by 760
© 2026 Assignment Expert
To convert from PSIG to PSIAAns: Add 14.7, PSIG means "pound per
square inch gauge". PSIA means pounds per square ince absolute.
Guru01 - Stuvia
Boyle's law is about the?Ans: Pressure-volume relationship. Boyle's law
says that with temperature constant, the volume of a gas is inversely
proportional to the pressure.
According to Boyle's Law, (assuming the temperature remains constant)
when the pressure increases, the volume?Ans: 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 is known as?Ans: Barotrauma
Boyle's law equation?Ans: P1 x V1=P2 xV2
Charles law is about the?Ans: Temperature-volume relationship, With
pressure constant, the volume of a gas is directly proportional to the
temperature.
