EPA 608 CERTIFICATION EXAM 2026\2027
QUESTIONS AND ANSWERS.
1. What are 6 Type II appliances? - CORRECT 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
2. What is an example of a Type III appliance? - CORRECT
ANSWER - Low pressure chiller.
3. When is "Dew Point" used? - CORRECT ANSWER - When
calculating Superheat.
4. When is "Bubble Point" used? - CORRECT ANSWER -
When calculating Sub-cooling.
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5. What does the EPA require on all Type I equipment that
uses Class I or Class II refrigerants. - CORRECT ANSWER
- EPA requires a service aperature (process stub).
6. TXV - CORRECT ANSWER - Thermostatic Expansion
Valve
7. The EPA considers a major repair to be the replacement of
what 4 items? - CORRECT ANSWER - 1.Evaporator
2.Condenser
3.Compressor
4.Auxillary Heat Exchanger
8. When the refrigerant is put back into a Type III chiller,
following recovery and system repair, where is it added? -
CORRECT ANSWER - The charging valve on the
evaporator.
9. What method is used to find suspected water tube leaks in
chillers? - CORRECT ANSWER - Hydrostatic (tube) test