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EPA Section 609 motor vehicle air conditioning practice test

187 free practice questions for this exam, each with the reason for the answer and where to look it up.

EPA 609 (vehicle A/C): practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

Practice tests that prepare you for this exam

EPA 609 (vehicle A/C)

Refrigerants, regulations, recovery and recycling equipment, service procedures and safety for the EPA Section 609 MVAC certification.

187 questions for this exam

About the exam

ExamEPA Section 609 motor vehicle air conditioning
Who runs itEPA-approved certifiers
WhereUnited States

Question count, time limit and pass mark differ by where you take it. Check the official candidate bulletin from the organisation that runs your exam.

Sample questions

SAE J2788 is the standard for equipment that recovers, recycles and recharges

  1. R-12
  2. R-1234yf
  3. R-134a
  4. R-744
Show the answer

C. R-134a

J2788 covers R-134a recovery/recycling/recharging machines. R-1234yf machines are built to J2843, and the old R-12 machines to J1990.

Reference: SAE J2788; 40 CFR Part 82 Subpart B, Appendix C

What is the ASHRAE safety classification of R-1234yf?

  1. A1
  2. A2L
  3. A3
  4. B2L
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B. A2L

R-1234yf is A2L: lower toxicity (A) and lower flammability (2L). A1 is non-flammable, like R-134a, and A3 is highly flammable, like propane.

Reference: ASHRAE Standard 34

A quick-lube shop adds refrigerant to customers' A/C systems at no extra charge as part of a paid service package. Does the person doing this need Section 609 certification?

  1. No, because the customer is not charged for the refrigerant
  2. Yes, because the work is part of a service the customer pays for
  3. No, because adding refrigerant is not considered service
  4. Yes, but only if more than one full pound of refrigerant is added
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B. Yes, because the work is part of a service the customer pays for

Service 'for consideration' includes work bundled into a paid visit, even if the top-off itself is listed as free. Adding refrigerant is servicing the system, and there is no minimum quantity.

Reference: 40 CFR 82.32 (service for consideration); 82.34

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