BOMI: AHU, Water Treatment, and Plumbing Questions and Answers (100% Correct Answers) Already Graded A+

1 Exampromax - Stuvia US 2025/2026


BOMI: AHU, Water Treatment, and Plumbing
Questions and Answers (100% Correct
Answers) Already Graded A+


Quiz: What is the relationship between thermal comfort and metabolic
heat?Questions and Answers (100% Correct Answers) Already Graded
A+Thermal comfort exists when the temperature and relative humidity of a
person's environment permit the person to lose, without conscious effort,
metabolic heat at the same rate he or she produces it. Because temperature
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and humidity combine to make
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humans feel comfortable in their surroundings, these characteristics must be
adjusted by the AC system in order to enhance human comfort.zz


Quiz: What occupant activity level is chosen when engineers design an
air-conditioning system?Questions and Answers (100% Correct Answers)
Already Graded A+Office building air-conditioning systems are typically
designed to accommodate people engaged in sedentary activities, including
tasks done while seated or standing. Sedentary activity is the most
important condition because when people are sedentary, they think about
their comfort or discomfort.zz


Quiz: What is the rate of exchange of fresh air for return air based on in
an AC system?Questions and Answers (100% Correct Answers) Already
Graded A+The rate of exchange of fresh air for returned air is based on the
quantity of fresh air required for each building occupant over the course of
time.zz


Quiz: Define heatQuestions and Answers (100% Correct Answers)
Already Graded A+Heat is energy that flows from one object to another.
Heat always travels from an object with more heat to an object with less
heat until both bodies are the same temperature.zz

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Quiz: What happens to the rate of heat transfer if the difference in
temperature increases?Questions and Answers (100% Correct Answers)
Already Graded A+The rate at which heat transfers increases as the
difference in temperature between the two objects increases.zz


Quiz: What are the three methods of heat transfer?Questions and
Answers (100% Correct Answers) Already Graded A+Conduction,
Convection, and Radiationzz


Quiz: Define conductionQuestions and Answers (100% Correct Answers)
Already Graded A+Conduction is the direct transfer of heat from one body
to another. The substances have to be in physical contact with each other,
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but there is no movement of the material itself.zz
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Quiz: Define latent heatQuestions and Answers (100% Correct Answers)
Already Graded A+Latent heat is the energy that is used or released during
a change of state. Latent heat cannot be felt or measured with a
thermometer because it is hidden within a substance.zz


Quiz: Define relative humidityQuestions and Answers (100% Correct
Answers) Already Graded A+RH (relative humidity) describes the amount
of water vapor held in the air.zz


Quiz: Does moist air have more or less density than dry air?Questions
and Answers (100% Correct Answers) Already Graded A+Moist air has less
mass than dry air and is less dense than dry air.zz


Quiz: What is the atmospheric pressure of air at sea level?Questions and
Answers (100% Correct Answers) Already Graded A+At sea level,
atmospheric pressure exerts an average force of 14.7 pounds on each square
inch of surface (14.7 psi).zz


Quiz: Explain Charles' Law.Questions and Answers (100% Correct
Answers) Already Graded A+Charles' law explains why gases expand when

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heated and contract when cooled. Given a certain quantity of gas, as
temperature increases, volume increases. This is because the molecules have
the opportunity to move more and spread out. As pressure increases and the
volume decreases, the temperature will increase because compressing the
gas causes the molecules to
vibrate faster and collide into each other more frequently, causing friction
heat.zz


Quiz: Explain Boyle's Law.Questions and Answers (100% Correct
Answers) Already Graded A+Boyle's law states that at a constant
temperature, as the volume increases, the pressure decreases. If the pressure
on a
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certain amount of gas is doubled, the volume of space it requires will be cut
in half. As pressure goes up, volume goes down.zz
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Quiz: How does the human body regulate its temperature?Questions and
Answers (100% Correct Answers) Already Graded A+The body dissipates
heat by sending blood from internal organs to the skin where the heat is
thrown off into the
surroundings by radiant heat loss, convective heat loss, or evaporation.
Perspiring and losing the heat through
evaporation is an evaporative cooling process and is used in air-conditioning
systems as well as human bodies.zz


Quiz: What system produces the most heat in a building?Questions and
Answers (100% Correct Answers) Already Graded A+Building lights are
the most significant internal heat source. The heat given off by lights
depends mainly on the wattage rating of the lighting elements. Lighting
systems produce heat loads of up to four watts per square foot. The heat
gain from one watt of electrical energy is equivalent to 3.4 Btu per hour.zz


Quiz: How have office building AC systems been designed to compensate
for heat gain from office equipment?Questions and Answers (100% Correct
Answers) Already Graded A+To compensate for this heat gain from office