BOMI: AIR HANDLING, WATER
TREATMENT & PLUMBING SYSTEMS.
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
BOMI - Air Handling, Water Treatment & Plumbing System
Chapter 1 - Human Comfort
Review Quiz 1 -
1 - The rate of exchange of fresh air for returned air in an air conditioning-system is based on
the period of time covered and the number of building: - ANS Occupants
2 - All of the 3 following are methods of heat - ANS Radiation
Convection
Conduction
NOT Reduction
3 - Which heat load source is most likely to affect all zones of a building? - ANS Lighting
equipment
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,4 - To compensate for heat gain from office equipment in modern office building, air-
conditioning systems have been designed to offset how many watts per square foot? - ANS 1
to 3 Watts per square foot.
5 - The leftover heat in a building from the day before is the: - ANS Pull-down load
6 - What exists when the temperature and relative humidity of a person's environment permit
the person to lose metabolic heat at the same rate he or she produces it? - ANS Thermal
comfort
7 - Why is it most important to air-condition with sedentary people? - ANS They think about
their comfort more
8 - How is sensible heat measured? - ANS Dry-bulb thermometer
9 - What type of heat is released or used during a change of state between solid, liquid, and
gas? - ANS Latent heat
10 - Which of the following affects the amount of water vapor the atmosphere can hold? -
ANS Air temperature
11 - Which of the following is true about mechanical refrigeration cycle air flows? - ANS Air
flows from higher pressure to lower pressure
12 - Boyle's law states: - ANS As Pressure goes up, volume goes down.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,13 - Maintaining temperature and ___Blank___ have a direct impact on maintaining human
comfort. - ANS Humidity
14 - How does introducing air-conditioned and filtered air at a positive pressure into a building
help building comfort? - ANS It causes the outward escape of air, limiting infiltration.
Chapter 1 Key Concept - ANS
1 - What is the relationship between thermal comfort and metabolic heat? - ANS Thermal
comfort exists when the temperature and relative humidity of a persons environment permit
the person to lose, without conscious effort, metabolic heat at the same rate he or she
produces it.
2 - What occupant activity level is chosen when engineers design an air-conditioning system? -
ANS average and peak activity levels
3 - What is the rate of exchange of fresh air for return air based on in an air-conditioning
system? - ANS 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.
4- Define heat - ANS Heat is a form of energy which cannot be destroyed only transformed or
moved.
Heat is added to conditioned air in the winter and removed in the summer. No shit.
5 - What happens to the rate of heat transfer if the difference in temperature increases? -
ANS the rate of heat transfer Increases if the difference in temperature increases
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, 6 - What are three methods in which heat is transferred? - ANS Convection
Conduction
Radiation
7 - Define conduction - ANS The direct transfer of heat from one body to another.
Define connvection - ANS The transfer of heat using a substance
Define radiation - ANS Heat that an object throws off to its surroundings.
8 - Define sensible heat - ANS A measure of the internal heat of a substance.
No change in state or physical property.
9 - Define latent heat - ANS The energy that is used or released during the change in state.
10 - Define relative humidity - ANS The amount of water vapor held in the air
11 - Does moist air have more or less density than dry air? - ANS Moist air has less mass than
dry air and is less dense than dry air.
12 - What is the atmospheric pressure of air at sea level? - ANS 14.7 psi
13 - Explain Charles' law: - ANS Charles law explains why gases expand when heated and
contract when cooled.
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
TREATMENT & PLUMBING SYSTEMS.
EXAM QUESTIONS AND ANSWERS
GRADED A+ 2025/2026
BOMI - Air Handling, Water Treatment & Plumbing System
Chapter 1 - Human Comfort
Review Quiz 1 -
1 - The rate of exchange of fresh air for returned air in an air conditioning-system is based on
the period of time covered and the number of building: - ANS Occupants
2 - All of the 3 following are methods of heat - ANS Radiation
Convection
Conduction
NOT Reduction
3 - Which heat load source is most likely to affect all zones of a building? - ANS Lighting
equipment
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,4 - To compensate for heat gain from office equipment in modern office building, air-
conditioning systems have been designed to offset how many watts per square foot? - ANS 1
to 3 Watts per square foot.
5 - The leftover heat in a building from the day before is the: - ANS Pull-down load
6 - What exists when the temperature and relative humidity of a person's environment permit
the person to lose metabolic heat at the same rate he or she produces it? - ANS Thermal
comfort
7 - Why is it most important to air-condition with sedentary people? - ANS They think about
their comfort more
8 - How is sensible heat measured? - ANS Dry-bulb thermometer
9 - What type of heat is released or used during a change of state between solid, liquid, and
gas? - ANS Latent heat
10 - Which of the following affects the amount of water vapor the atmosphere can hold? -
ANS Air temperature
11 - Which of the following is true about mechanical refrigeration cycle air flows? - ANS Air
flows from higher pressure to lower pressure
12 - Boyle's law states: - ANS As Pressure goes up, volume goes down.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,13 - Maintaining temperature and ___Blank___ have a direct impact on maintaining human
comfort. - ANS Humidity
14 - How does introducing air-conditioned and filtered air at a positive pressure into a building
help building comfort? - ANS It causes the outward escape of air, limiting infiltration.
Chapter 1 Key Concept - ANS
1 - What is the relationship between thermal comfort and metabolic heat? - ANS Thermal
comfort exists when the temperature and relative humidity of a persons environment permit
the person to lose, without conscious effort, metabolic heat at the same rate he or she
produces it.
2 - What occupant activity level is chosen when engineers design an air-conditioning system? -
ANS average and peak activity levels
3 - What is the rate of exchange of fresh air for return air based on in an air-conditioning
system? - ANS 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.
4- Define heat - ANS Heat is a form of energy which cannot be destroyed only transformed or
moved.
Heat is added to conditioned air in the winter and removed in the summer. No shit.
5 - What happens to the rate of heat transfer if the difference in temperature increases? -
ANS the rate of heat transfer Increases if the difference in temperature increases
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, 6 - What are three methods in which heat is transferred? - ANS Convection
Conduction
Radiation
7 - Define conduction - ANS The direct transfer of heat from one body to another.
Define connvection - ANS The transfer of heat using a substance
Define radiation - ANS Heat that an object throws off to its surroundings.
8 - Define sensible heat - ANS A measure of the internal heat of a substance.
No change in state or physical property.
9 - Define latent heat - ANS The energy that is used or released during the change in state.
10 - Define relative humidity - ANS The amount of water vapor held in the air
11 - Does moist air have more or less density than dry air? - ANS Moist air has less mass than
dry air and is less dense than dry air.
12 - What is the atmospheric pressure of air at sea level? - ANS 14.7 psi
13 - Explain Charles' law: - ANS Charles law explains why gases expand when heated and
contract when cooled.
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
