MACS 609 CERTIFICATION Exam (Recent exam)
Fully solved & updated 2026 Most COMPLETE
(2026)
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Is hygroscopic (absorbs moisture)
Choose an answer
If lubricant is removed by recovery
equipment during system Mixing CFC-12 and HFC-134a in the
1 2
refrigerant removal, what must be same system will:
done with the lubricant?
Electronic leak detectors certified
3 PAG lubricant: 4 to SAE J2791 have the capacity of
identifying leakage rates as low as:
Don't know?
, Terms in this set (25)
If lubricant is removed by recovery Re-install lubricant removed by the recovery
equipment during system equipment
refrigerant removal, what must be
done with the lubricant?
Before reuse, what must be done Question 2 options:
with HFC-134a that has been Recycle the HFC-134a before reuse using
recovered from a mobile A/C certified equipment
system using recovery-only
equipment?
When can HFC-134a become If shop air is used in the system in an attempt to
combustible in a mobile air check for leaks and HFC-134a is present
conditioning system?
Which type of mobile A/C system Accumulator type
will usually require additional time /
precautions to extract all the
refrigerant?
Electronic leak detectors certified 0.15 ounces per year
to SAE J2791 have the capacity of
identifying leakage rates as low as:
When recovery/recycling Generally, very little, if any
equipment is used to remove
refrigerant from a mobile A/C
system, how much lubricant will be
removed during the operation?
Why is it necessary to insure that To minimize refrigerant loss
service port caps containing good
seals are installed?
Fully solved & updated 2026 Most COMPLETE
(2026)
Save
Practice questions for this set
Learn 1 /7 Study with Learn
Is hygroscopic (absorbs moisture)
Choose an answer
If lubricant is removed by recovery
equipment during system Mixing CFC-12 and HFC-134a in the
1 2
refrigerant removal, what must be same system will:
done with the lubricant?
Electronic leak detectors certified
3 PAG lubricant: 4 to SAE J2791 have the capacity of
identifying leakage rates as low as:
Don't know?
, Terms in this set (25)
If lubricant is removed by recovery Re-install lubricant removed by the recovery
equipment during system equipment
refrigerant removal, what must be
done with the lubricant?
Before reuse, what must be done Question 2 options:
with HFC-134a that has been Recycle the HFC-134a before reuse using
recovered from a mobile A/C certified equipment
system using recovery-only
equipment?
When can HFC-134a become If shop air is used in the system in an attempt to
combustible in a mobile air check for leaks and HFC-134a is present
conditioning system?
Which type of mobile A/C system Accumulator type
will usually require additional time /
precautions to extract all the
refrigerant?
Electronic leak detectors certified 0.15 ounces per year
to SAE J2791 have the capacity of
identifying leakage rates as low as:
When recovery/recycling Generally, very little, if any
equipment is used to remove
refrigerant from a mobile A/C
system, how much lubricant will be
removed during the operation?
Why is it necessary to insure that To minimize refrigerant loss
service port caps containing good
seals are installed?
