EPA 609 CORE EXAM 2026 TEST QUESTIONS AND
ANSWERS GRADED A+
✔✔What are the three "R's"? - ✔✔Recover, Recycle, and Reclaim.
✔✔In relation to the three "R's" what is Recover? - ✔✔To remove refrigerant in any
condition from a system and store it in an external approved container.
✔✔In relation to the three "R's" what is Recycle? - ✔✔To clean refrigerant for reuse by
seperating the oil from the refrigerant and removing moisture from the refrigerant by
passing it through one or more filter dryers.
✔✔Can Recycled refrigerant be resold? - ✔✔It cannot be re-sold but it can be re-used.
✔✔In relation to the three "R's" what is Reclaim? - ✔✔To process refrigerant to a level
equal to new (virgin) product specifications as determined by chemical analysis.
✔✔Can Reclaimed refrigerant be resold? - ✔✔Yes, but must meet the standard set
forth in ARI 700 before it can be resold.
✔✔What chemical has been found in the stratosphere indicating ozone depletion? -
✔✔Chlorine Monoxide (CLO)
✔✔What are 5 Type I appliances? - ✔✔1.Household refrigerators
2.Household freezers
3.Room air conditioners
4.Water Coolers
5.Drinking fountains
✔✔What are 6 Type II appliances? - ✔✔1.Walk-in coolers
2.Walk-in freezers
3.Reach-in refrigerators
4.Reach-in freezers
5.Residential & Commercial comfort cooling systems
6.Ice machines
✔✔What is an example of a Type III appliance? - ✔✔Low pressure chiller.
✔✔When is "Dew Point" used? - ✔✔When calculating Superheat.
✔✔When is "Bubble Point" used? - ✔✔When calculating Sub-cooling.
✔✔What does the EPA require on all Type I equipment that uses Class I or Class II
refrigerants. - ✔✔EPA requires a service aperature (process stub).
ANSWERS GRADED A+
✔✔What are the three "R's"? - ✔✔Recover, Recycle, and Reclaim.
✔✔In relation to the three "R's" what is Recover? - ✔✔To remove refrigerant in any
condition from a system and store it in an external approved container.
✔✔In relation to the three "R's" what is Recycle? - ✔✔To clean refrigerant for reuse by
seperating the oil from the refrigerant and removing moisture from the refrigerant by
passing it through one or more filter dryers.
✔✔Can Recycled refrigerant be resold? - ✔✔It cannot be re-sold but it can be re-used.
✔✔In relation to the three "R's" what is Reclaim? - ✔✔To process refrigerant to a level
equal to new (virgin) product specifications as determined by chemical analysis.
✔✔Can Reclaimed refrigerant be resold? - ✔✔Yes, but must meet the standard set
forth in ARI 700 before it can be resold.
✔✔What chemical has been found in the stratosphere indicating ozone depletion? -
✔✔Chlorine Monoxide (CLO)
✔✔What are 5 Type I appliances? - ✔✔1.Household refrigerators
2.Household freezers
3.Room air conditioners
4.Water Coolers
5.Drinking fountains
✔✔What are 6 Type II appliances? - ✔✔1.Walk-in coolers
2.Walk-in freezers
3.Reach-in refrigerators
4.Reach-in freezers
5.Residential & Commercial comfort cooling systems
6.Ice machines
✔✔What is an example of a Type III appliance? - ✔✔Low pressure chiller.
✔✔When is "Dew Point" used? - ✔✔When calculating Superheat.
✔✔When is "Bubble Point" used? - ✔✔When calculating Sub-cooling.
✔✔What does the EPA require on all Type I equipment that uses Class I or Class II
refrigerants. - ✔✔EPA requires a service aperature (process stub).
