EPA 608 STUDY GUIDE 2026 QUESTIONS
WITH SOLUTIONS GRADED A+
⩥ What are the three equipment-specific types covered in the EPA 608
certification? Answer: Type I (small appliances), Type II (high-pressure
appliances), and Type III (low-pressure appliances).
⩥ What significant act was amended in 1990 to establish Section 608?
Answer: The Clean Air Act (CAA).
⩥ What is the main goal of Section 608? Answer: To minimize
emissions of ozone-depleting substances (ODS) and their substitutes.
⩥ What does the Montreal Protocol aim to achieve? Answer: It phases
out the production and use of CFCs and HCFCs due to their high ozone
depletion potential.
⩥ What is the Ozone Depletion Potential (ODP) of CFCs like R-12?
Answer: 1.0.
⩥ What is the GWP of R-404A? Answer: 3,922.
⩥ What does the AIM Act mandate regarding HFCs? Answer: It
mandates a phase-down of high-GWP HFCs by 85% by 2036.
, ⩥ What are the two types of refrigerant blends? Answer: Azeotropic
blends and zeotropic blends.
⩥ What is superheat in refrigeration? Answer: The temperature of vapor
above its boiling point.
⩥ What is subcooling in refrigeration? Answer: The temperature of
liquid below its condensation point.
⩥ What is required before opening or disposing of any appliance
containing regulated refrigerant? Answer: Recovery of the refrigerant.
⩥ What is the maximum recovery level required for small appliances
manufactured after 1993? Answer: 90% recovery or evacuation to 4" Hg
vacuum.
⩥ What type of recovery equipment is required for appliances over 15
lbs of refrigerant? Answer: Self-contained recovery equipment.
⩥ What is the primary health hazard associated with refrigerants?
Answer: Asphyxiation due to displacement of oxygen.
WITH SOLUTIONS GRADED A+
⩥ What are the three equipment-specific types covered in the EPA 608
certification? Answer: Type I (small appliances), Type II (high-pressure
appliances), and Type III (low-pressure appliances).
⩥ What significant act was amended in 1990 to establish Section 608?
Answer: The Clean Air Act (CAA).
⩥ What is the main goal of Section 608? Answer: To minimize
emissions of ozone-depleting substances (ODS) and their substitutes.
⩥ What does the Montreal Protocol aim to achieve? Answer: It phases
out the production and use of CFCs and HCFCs due to their high ozone
depletion potential.
⩥ What is the Ozone Depletion Potential (ODP) of CFCs like R-12?
Answer: 1.0.
⩥ What is the GWP of R-404A? Answer: 3,922.
⩥ What does the AIM Act mandate regarding HFCs? Answer: It
mandates a phase-down of high-GWP HFCs by 85% by 2036.
, ⩥ What are the two types of refrigerant blends? Answer: Azeotropic
blends and zeotropic blends.
⩥ What is superheat in refrigeration? Answer: The temperature of vapor
above its boiling point.
⩥ What is subcooling in refrigeration? Answer: The temperature of
liquid below its condensation point.
⩥ What is required before opening or disposing of any appliance
containing regulated refrigerant? Answer: Recovery of the refrigerant.
⩥ What is the maximum recovery level required for small appliances
manufactured after 1993? Answer: 90% recovery or evacuation to 4" Hg
vacuum.
⩥ What type of recovery equipment is required for appliances over 15
lbs of refrigerant? Answer: Self-contained recovery equipment.
⩥ What is the primary health hazard associated with refrigerants?
Answer: Asphyxiation due to displacement of oxygen.
