MACS 609 CERTIFICATION questions with correct answers|| latest copy

MACS 609 CERTIFICATION questions with verified correct answers


1. 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

2. 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:Answer: Recycle the HFC-134a before reuse using certified equipment

3. When can HFC-134a become combustible in a mobile air conditioning sys- tem?:Answer: If shop air is used in the system in an
attempt to check for leaks and HFC-134a is present

4. Which type of mobile A/C system will usually require additional time / precautions to extract all the
refrigerant?:Answer: Accumulator type

5. Electronic leak detectors certified to SAE J2791 have the capacity of iden- tifying leakage rates as low as:Answer::Answer: 0.15
ounces per year

6. When recovery/recycling equipment is used to remove refrigerant from a mobile A/C system, how much lubricant will be
removed during the opera- tion?:Answer: Generally, very little, if any

7. Why is it necessary to insure that service port caps containing good seals




1/3