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BOMI Air Handling, Water Treatment & Plumbing Systems Exam 2024 | BOMI Exam Latest Update 2024 Questions and Correct Answers Rated A+$19.49
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BOMI Air Handling, Water Treatment &
Plumbing Systems Exam 2024 | BOMI
Exam Latest Update 2024 Questions and
Correct Answers Rated A+
Air Handling, Water Treatment & Plumbing System
Chapter 1 Human Comfort
Review Quiz
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: -ANSWER-Occupants
2 - All of the 3 following are methods of heat -ANSWER-Radiation
Convection
Conduction
NOT Reduction
3 - Which heat load source is most likely to affect all zones of a
building? -ANSWER-Lighting equipment
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? -ANSWER-1 to 3 Watts per square
foot.
5 - The leftover heat in a building from the day before is the: -
ANSWER-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? -ANSWER-Thermal comfort
7 - Why is it most important to air-condition with sedentary people? -
ANSWER-They think about their comfort more
8 - How is sensible heat measured? -ANSWER-Dry-bulb thermometer
9 - What type of heat is released or used during a change of state
between solid, liquid, and gas? -ANSWER-Latent heat
10 - Which of the following affects the amount of water vapor the
atmosphere can hold? -ANSWER-Air temperature
11 - Which of the following is true about mechanical refrigeration cycle
air flows? -ANSWER-Air flows from higher pressure to lower pressure
13 - Maintaining temperature and ___Blank___ have a direct impact
on maintaining human comfort. -ANSWER-Humidity
14 - How does introducing air-conditioned and filtered air at a positive
pressure into a building help building comfort? -ANSWER-It causes
the outward escape of air, limiting infiltration.
Chapter 1 Key Concept
,1 - What is the relationship between thermal comfort and metabolic
heat? -ANSWER-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? -ANSWER-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? -ANSWER-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 -ANSWER-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? -ANSWER-the rate of heat transfer Increases
if the difference in temperature increases
6 - What are three methods in which heat is transferred? -ANSWER-
Convection
Conduction
Radiation
7 - Define conduction -ANSWER-The direct transfer of heat from one
body to another.
, Define connvection -ANSWER-The transfer of heat using a substance
Define radiation -ANSWER-Heat that an object throws off to its
surroundings.
8 - Define sensible heat -ANSWER-A measure of the internal heat of a
substance.
No change in state or physical property.
9 - Define latent heat -ANSWER-The energy that is used or released
during the change in state.
10 - Define relative humidity -ANSWER-The amount of water vapor
held in the air
11 - Does moist air have more or less density than dry air? -
ANSWER-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? -ANSWER-
14.7 psi
13 - Explain Charles' law: -ANSWER-Charles law explains why gases
expand when heated and contract when cooled.
14 - Explain Boyle's law -ANSWER-Boyle's law states that a constant
temperature, as the volume increases, the pressure decreases.
15 - How does the human body regulate temperature? -ANSWER-
Sweating when overheating too cool down.
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