EPA 608 609 Universal 3 — Questions and Answers
Question 1: A Type I certification allows a technician to service which kind of equipment?
- High-pressure appliances
- Small appliances with 5 pounds or less of refrigerant (Correct answer)
- Motor vehicle air conditioners
- Low-pressure chillers
Correct answer: Small appliances with 5 pounds or less of refrigerant
Type I certification covers small appliances containing 5 pounds or less of refrigerant.
Question 2: Type II certification is required to service which of the following?
- Small appliances
- High-pressure and very high-pressure appliances (Correct answer)
- Low-pressure appliances
- Automobile A/C
Correct answer: High-pressure and very high-pressure appliances
Type II certification covers high-pressure and very high-pressure equipment such as residential A/C and supermarket racks.
Question 3: What characterizes a low-pressure refrigerant serviced under Type III certification?
- It boils below atmospheric pressure at room temperature (Correct answer)
- It operates above 50 psig
- It is always flammable
- It contains no chlorine
Correct answer: It boils below atmospheric pressure at room temperature
Low-pressure refrigerants such as R-123 boil at or below atmospheric pressure at normal temperatures.
Question 4: To hold Universal certification, a technician must pass which exam sections?
- Core only
- Core plus Type I, II, and III (Correct answer)
- Type I and II only
- Type II and III only
Correct answer: Core plus Type I, II, and III
Universal certification requires passing the Core section plus all three type-specific sections.
Question 5: What level of vacuum (recovery) is required for a high-pressure appliance with a charge of 200 pounds or more using recovery equipment manufactured after November 15, 1993?
- 0 inches Hg
- 10 inches Hg vacuum
- 15 inches Hg vacuum (Correct answer)
- 25 inches Hg vacuum
Correct answer: 15 inches Hg vacuum
Large high-pressure appliances require evacuation to 15 inches of mercury vacuum with newer recovery equipment.
Question 6: Which refrigerant property is most associated with global warming potential (GWP)?
- Ozone destruction
- Heat-trapping ability in the atmosphere (Correct answer)
- Toxicity to humans
- Electrical conductivity
Correct answer: Heat-trapping ability in the atmosphere
GWP measures how much heat a greenhouse gas traps in the atmosphere relative to carbon dioxide.
Question 7: Recovered refrigerant that will be reused on-site in the same or owner's other equipment without reprocessing is considered:
- Reclaimed
- Recycled or recovered (Correct answer)
- Reprocessed to ARI 700
- Destroyed
Correct answer: Recycled or recovered
Refrigerant reused on-site without meeting purity standards is classified as recovered or recycled, not reclaimed.
EPA 608 609 Universal 3
A Type I certification allows a technician to service which kind of equipment?