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SKILLCAT EPA 608 EXAM NEWEST 2025
ACTUAL EXAM| COMPLETE 250
QUESTIONS WITH CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+
Which international treaty agreement was the basis for Section 608? - ANSWER - The Montreal Protocol.
Depletion of the ozone in the stratosphere is known to cause what 6 things? - ANSWER - 1. Crop losses 2.Increases in eye diseases 3.Skin Cancer 4.Reduced marine life 5.Deforestation 6.Increased ground level ozone
What happens when CFC or HCFC molecules get in the stratosphere & free atoms of Chlorine are set free? - ANSWER - These atoms attack Ozone Molecules causing the formation of Chlorine Monoxide (CLO), after colliding with another Ozone Molecule, causes 2 Oxygen (O2) molecules to be made & leaving an atom of chlorine to act as "Free Agent" starting the process over until 100,000 molecules of Ozone are destroyed by just one atom of chloride. 1 / 4
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pg. 2 What date was recovery equipment required to be certified by a lab, & achieve higher evacuation levels, & have low loss fittings? - ANSWER - November 15, 1993
On what date was technician certification required? - ANSWER - November 14, 1994
What date were CFC's phased out of production? - ANSWER - December 31, 1995
What is EPA 608 Type I certification? - ANSWER - Persons who maintain, service, repair, or dispose of small appliances (containing 5 pounds of refrigerant (or less).
What is EPA 608 Type II certification? - ANSWER - Persons who maintain, service, repair, or dispose of high and very high-pressure appliances. Except small appliances and motor vehicle air conditioning systems.
What is EPA 608 Type III certification? - ANSWER - Persons who maintain, service, repair, or dispose of low-pressure appliances.
What is EPA 608 Universal certification? - ANSWER - Persons who maintain, service, repair, or dispose of both low- and high-pressure equipment, as well as appliances.
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pg. 3 What are HydroChloroFluoroCarbons? - ANSWER - Commonly known as HCFC's, they are a group of man-made compounds containing hydrogen, chlorine, fluorine, and carbon.
A recovery cylinder must not be filled more than ___ % of its capacity by weight? - ANSWER -80%
How should refrigerant cylinders be shipped? - ANSWER - Up-right with proper DOT classification tags.
What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will also work with CFC's and HCFC's. - ANSWER - Polyol ester
HCFC's have very low atmospheric concentrations measured in parts per? - ANSWER - Trillion
What chemical has been found in the stratosphere indicating ozone depletion? - ANSWER - Chlorine Monoxide (CLO)
What are 5 Type I appliances? - ANSWER - 1. Household refrigerators 2.Household freezers 3.Room air conditioners 4.Water Coolers 5.Drinking fountains
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pg. 4 What are 6 Type II appliances? - ANSWER - 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? - ANSWER - Low pressure chiller.
When is "Dew Point" used? - ANSWER - When calculating Superheat.
When is "Bubble Point" used? - ANSWER - When calculating Sub- cooling.
What does the EPA require on all Type I equipment that uses Class I or Class II refrigerants? - ANSWER - EPA requires a service aperture (process stub).
What is the definition of a Type I Appliance? - ANSWER - A small appliance that is manufactured, charged, and hermetically sealed in a factory with 5 lbs. of refrigerant or less.
What is the definition of a Type II Appliance? - ANSWER - High pressure or very high-pressure appliances except for small appliances
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