MACS 609 CERTIFICATION QUESTIONS AND ANSWERS ALREADY PASSED

MACS 609 CERTIFICATION QUESTIONS AND ANSWERS ALREADY PASSED If lubricant is removed by recovery equipment during system refrigerant removal, what must be done with the lubricant? - Answer ️️ -Re-install lubricant removed by the recovery equipment Before reuse, what must be done with HFC-134a that has been recovered from a mobile A/C system using recovery-only equipment? - Answer ️️ -Question 2 options: Recycle the HFC-134a before reuse using certified equipment When can HFC-134a become combustible in a mobile air conditioning system? - Answer ️️ -If shop air is used in the system in an attempt to check for leaks and HFC-134a is present Which type of mobile A/C system will usually require additional time / precautions to extract all the refrigerant? - Answer ️️ -Accumulator type Electronic leak detectors certified to SAE J2791 have the capacity of identifying leakage rates as low as: - Answer ️️ -0.15 ounces per year When recovery/recycling equipment is used to remove refrigerant from a mobile A/C system, how much lubricant will be removed during the operation? - Answer ️️ -Generally, very little, if any Why is it necessary to insure that service port caps containing good seals are installed? - Answer ️️ -To minimize refrigerant loss