EPA Section 609 Exam 2025/2026 |
Actual Exam with Complete Questions
and Answers | Motor Vehicle Air
Conditioning | Environmental Protection
Agency Certification
What advantage do self-contained recovery units offer over portable recovery
machines? -CORRECTANSWER Faster refrigerant recovery suitable for handling larger
volumes.
Why is it important to inspect electrical components during MVAC servicing? -
CORRECTANSWER To Ensure the compressor and other parts are functioning
correctly.
What is a key advantage of using digital systems for MVAC record-keeping? -
CORRECTANSWER Efficiency, accuracy, and ease of data retrieval.
What is a key consideration when selecting an electronic leak detector for MVAC
systems? -CORRECTANSWER The type of refrigerant used in the system, as some
detectors are specific to certain refrigerants.
, Non-condensable gases in a refrigeration system can be identified by comparing
measured pressure and temperature values with those on the refrigerant's: -
CORRECTANSWER PT chart.
When is a pump-down system most effectively used in refrigerant recovery? -
CORRECTANSWER In larger MVAC systems or when frequent refrigerant recovery is
required.
The Global Warming Potential (GWP) of HFC-134a is approximately how many times
greater than that of CO2? -CORRECTANSWER 1,400 times.
What is a key safety feature of disposable refrigerant cylinders? -CORRECTANSWER
The inclusion of a safety-relief device to vent pressure and prevent rupture.
What are critical conditions that typically necessitate MVAC system retrofits? (Select all
that apply) -CORRECTANSWER 1. Age and type of refrigerant; 2. Refrigerant leakage
Which of the following is NOT a direct consequence of non-compliance with section 609
of the Clean Air Act? -CORRECTANSWER Increased fuel efficiency in MVAC systems.
For effective leak detection, what minimum pressure is necessary in the MVAC system?
-CORRECTANSWER At least 50 psig in both high and low sides of the system.
Actual Exam with Complete Questions
and Answers | Motor Vehicle Air
Conditioning | Environmental Protection
Agency Certification
What advantage do self-contained recovery units offer over portable recovery
machines? -CORRECTANSWER Faster refrigerant recovery suitable for handling larger
volumes.
Why is it important to inspect electrical components during MVAC servicing? -
CORRECTANSWER To Ensure the compressor and other parts are functioning
correctly.
What is a key advantage of using digital systems for MVAC record-keeping? -
CORRECTANSWER Efficiency, accuracy, and ease of data retrieval.
What is a key consideration when selecting an electronic leak detector for MVAC
systems? -CORRECTANSWER The type of refrigerant used in the system, as some
detectors are specific to certain refrigerants.
, Non-condensable gases in a refrigeration system can be identified by comparing
measured pressure and temperature values with those on the refrigerant's: -
CORRECTANSWER PT chart.
When is a pump-down system most effectively used in refrigerant recovery? -
CORRECTANSWER In larger MVAC systems or when frequent refrigerant recovery is
required.
The Global Warming Potential (GWP) of HFC-134a is approximately how many times
greater than that of CO2? -CORRECTANSWER 1,400 times.
What is a key safety feature of disposable refrigerant cylinders? -CORRECTANSWER
The inclusion of a safety-relief device to vent pressure and prevent rupture.
What are critical conditions that typically necessitate MVAC system retrofits? (Select all
that apply) -CORRECTANSWER 1. Age and type of refrigerant; 2. Refrigerant leakage
Which of the following is NOT a direct consequence of non-compliance with section 609
of the Clean Air Act? -CORRECTANSWER Increased fuel efficiency in MVAC systems.
For effective leak detection, what minimum pressure is necessary in the MVAC system?
-CORRECTANSWER At least 50 psig in both high and low sides of the system.
