EPA 608 Vocabulary (English)

What does AHRI stand for?

• American Heating and Refrigeration Institute

• Air Conditioning, Heating, and Refrigeration Institute

• Association of Heating and Refrigeration Industries

• Air Handling and Refrigeration Institute

What is the primary function of a capillary tube in a refrigeration system?

• To increase the pressure in the system

• To actively control the pressure drop

• To passively throttle and drop the pressure

• To maintain a constant temperature

Which organization publishes technical standards to improve the HVAC/R field?

• AHRI

• ASHRAE

• CFC

• EPA

What does CFC stand for in the context of refrigerants?

• Chlorofluorocarbon

• Carbon Fluoride Compound

• Chlorine Fluoride Compound

• Carbon Fluorine Chloride

What is the definition of "asphyxia" in the context of refrigeration?

• Increase of oxygen in a room

• Displacement of oxygen by denser refrigerant

• Increase of carbon dioxide in a room

• Displacement of nitrogen by refrigerant

What is the ozone depletion potential of Class I refrigerants?

• Greater than 0.2

• Less than 0.2

• Exactly 0.2

• Not applicable

Which of the following is a characteristic of Class II refrigerants?

• Consist of all chlorofluorocarbons

• Have an ozone depletion potential greater than 0.2

• Consist of all hydrochlorofluorocarbons

• Are not subject to phase-out schedules

What is the primary use of comfort cooling equipment?

• To store perishable goods

• To control temperature and/or humidity in occupied facilities

• To change low-pressure vapor to high-pressure vapor

• To remove water from the system

What is the function of a compressor in a refrigeration system?

• To change a high-pressure vapor to a high-pressure liquid

• To change a low-pressure vapor to a high-pressure vapor

• To remove non-condensable gases

• To measure the dew point

What does the term "deep vacuum" refer to in refrigeration systems?

• The process of changing vapor to liquid

• The removal of water from the system

• Evacuation of a system down to a low vacuum below 500 microns

• The temperature at which condensation begins