Box 1
What does the acronym HVAC stand for?
A. Heat, Vents, and Cooling.
B. Heating, Ventilation, and Air Conditioning.
C. Heating, Vacuum, and AC.
B. Heating, Ventilation, and Air Conditioning
What is primary power?
A. The higher voltage input into the transformer.
B. The lower voltage output from the transformer.
C. Power that is supplied by a backup generator.
A. The higher voltage input into the transformer.
What does the acronym IAQ stand for?
A. Interior Air Quotient
B. Internal Air Quality
C. Indoor Air Quality
C. Indoor Air Quality
What is secondary power?
A. The higher voltage input into the transformer.
B. The lower voltage output from the transformer.
C. An electrical current that powers lighting within a building.
B. The lower voltage output from the transformer.
Name a method of mold prevention.
A. Increasing the temperature of the space.
B. Improving ventilation to maintain a humidity level of about 40-60%.
C. Sealing windows tightly to reduce airflow.
B. Improving ventilation to maintain a humidity level of about 40-60%.
What is a British Thermal Unit (BTU) used to measure?
A. Water pressure in HVAC systems.
B. Heat needed to raise one pound of water by 1°F.
C. Speed of airflow.
B. Heat needed to raise one pound of water by 1°F.
What are the major components of an HVAC system?
A. Heater, rooftop fan, and manual thermostat.
B. Chiller, attic boiler, and ductless fan system.
C. Boiler, chiller, air handler, cooling tower, and energy management system.
C. Boiler, chiller, air handler, cooling tower, and energy management system.
What are two main types of geothermal heat pump systems, and how do they differ in installation?
A. Closed-loop and open-loop systems
B. High-temp and low-temp
C. Air-cooled and water-cooled
A. Closed-loop and open-loop systems
Why should CO2 be monitored in a building?
A. To detect the presence of toxic gases.
B. To detect the presence of mold in the air.
C. To regulate temperature and humidity levels in a building.
A. To detect the presence of toxic gases.
What is the main environmental concern associated with using fossil fuels like coal, oil, and natural gas for energy production?
A. They strengthen the ozone layer, trapping more heat
B. They cool the planet
C. They release greenhouse gases and cause climate change
C. They release greenhouse gases and cause climate change
How does the selection of building materials impact the quality of the air inside a building?
A. Materials can off-gas chemicals like adhesives that lower indoor air quality.
B. Materials naturally purify indoor air over time.
C. Materials have no effect on indoor air unless windows are open?
A. Materials can off-gas chemicals like adhesives that lower indoor air quality.
Which is not a method of beneficially controlling indoor air quality?
A. Ventilation
B. Heat transfer
C. Minimizing the use of HVAC systems to reduce energy consumption
C. Minimizing the use of HVAC systems to reduce energy consumption
What is a primary benefit of radiant floor heating compared to forced air systems?
A. It works best when combined with open windows for ventilation
B. It provides faster room heating by circulating hot air
C. It offers even, silent heat distribution by warming surfaces
C. It offers even, silent heat distribution by warming surfaces
Which is correct about an all-water vs. a forced-air system?
A. Forced-air systems have a boiler.
B. An all-water system uses water as the medium to heat or cool a space, while a forced air system uses air as a medium to heat or cool a space.
C. All-water systems use ducts for circulation.
B. An all-water system uses water as the medium to heat or cool a space, while a forced air system uses air as a medium to heat or cool a space.
What is a key difference in HVAC needs between small and large buildings?
A. Small buildings require more complex HVAC zoning due to uneven heating from natural light.
B. Large buildings need HVAC systems that can balance varying internal temperatures and areas not reached by natural light.
C. HVAC needs are the same regardless of building size, as natural light has little impact on internal temperature.
B. Large buildings need HVAC systems that can balance varying internal temperatures and areas not reached by natural light.
How does an air handler work?
A. It has heated and chilled coils that heat or cool the air, which is then distributed through ducts.
B. They generate steam through heating water, which then heats the air.
C. It tracks when a space’s temperature/humidity is out of an appropriate range.
A. It has heated and chilled coils that heat or cool the air, which is then distributed through ducts.
What is a MSD sheet and what is its purpose?
A. Material Safety Data Sheet - details product ingredients and usage instructions.
B. Material Safety Data Sheet - provides information on how to safely handle chemicals.
C. Management System Document that tracks employee safety records.
B. Material Safety Data Sheet - provides information on how to safely handle chemicals.
What are the key differences between radiant floor heating systems and forced air systems in terms of how they deliver heat?
A. Radiant floors heat surfaces silently; forced air blows warm air through ducts.
B. Radiant floors use vents; forced air uses floor coils.
C. Radiant floors cool air; forced air heats floors.
A. Radiant floors heat surfaces silently; forced air blows warm air through ducts.
What is the difference between passive and mechanical air flow systems in building design?
A. Passive systems use windows or exterior walls for airflow without fans, while mechanical systems use equipment to control ventilation
B. Passive systems require constant electricity, while mechanical systems rely only on wind direction
C. Both passive and mechanical systems use the same fans and ducts but at different times of day
A. Passive systems use windows or exterior walls for airflow without fans, while mechanical systems use equipment to control ventilation
How do HVAC needs vary on different sides of a building and across climates?
A. The north side of a building usually needs more cooling due to constant sun exposure.
B. HVAC systems must adjust by building orientation and climate - the East and West sides need cooling at different times, and Southern sides in hot climates need more cooling than the others.
C. All sides of a building receive equal sun and temperature exposure, so HVAC needs to be the same everywhere
B. HVAC systems must adjust by building orientation and climate - the East and West sides need cooling at different times, and Southern sides in hot climates need more cooling than the others.