EPA Section 609 – Questions With Complete Solutions
Which of the following is not a true factor in how much refrigerant can be
recovered from a A/C system? Right Ans - The age of the vehicle
Why is it important to make sure that the service port caps are not damaged
when reinstalling them? Right Ans - To minimize refrigerant loss
What must be done with the lubricant once it is removed by the recovery
equipment? Right Ans - Dispose of it in accordance with federal, state, local
requirements
What types of vehicles can HFO-1234yf be used in? Right Ans - Any light
vehicle with an air conditioning system designed to use it
SAE standard J2791 electronic leak detectors requires improved standards to
have the capability to identifying leakage rates as low as: Right Ans - 0.15
ounces per year
Which of the following statements are true about flushing A/C systems?
Right Ans - Flushing solvents may remain in A/C systems, causing problems
Before it can be reused, the refrigerant must be recycled through use of a
mobile A/C system using recovery-only equipment. Right Ans - Recycle the
HFC-134a before reuse using certified equipment
What is "acceptable" classification of HFO-1234yf according to the U.S. EPA?
Right Ans - The refrigerant may only be used in new vehicles with
components specifically designed for it
How much lubricant will be removed when using a recovery/recycling
equipment to remove refrigerant from a mobile A/C system? Right Ans -
Generally, very little, if any
What type of mobile A/C system will require more time and precautions to
extract all the refrigerant? Right Ans - Accumulator type
Which of the following is not a true factor in how much refrigerant can be
recovered from a A/C system? Right Ans - The age of the vehicle
Why is it important to make sure that the service port caps are not damaged
when reinstalling them? Right Ans - To minimize refrigerant loss
What must be done with the lubricant once it is removed by the recovery
equipment? Right Ans - Dispose of it in accordance with federal, state, local
requirements
What types of vehicles can HFO-1234yf be used in? Right Ans - Any light
vehicle with an air conditioning system designed to use it
SAE standard J2791 electronic leak detectors requires improved standards to
have the capability to identifying leakage rates as low as: Right Ans - 0.15
ounces per year
Which of the following statements are true about flushing A/C systems?
Right Ans - Flushing solvents may remain in A/C systems, causing problems
Before it can be reused, the refrigerant must be recycled through use of a
mobile A/C system using recovery-only equipment. Right Ans - Recycle the
HFC-134a before reuse using certified equipment
What is "acceptable" classification of HFO-1234yf according to the U.S. EPA?
Right Ans - The refrigerant may only be used in new vehicles with
components specifically designed for it
How much lubricant will be removed when using a recovery/recycling
equipment to remove refrigerant from a mobile A/C system? Right Ans -
Generally, very little, if any
What type of mobile A/C system will require more time and precautions to
extract all the refrigerant? Right Ans - Accumulator type
