MACS 609 CERTIFICATION EXAM QUESTIONS & ANSWERS RATED 100%
CO RECT!!!
1. If lubricant is removed by recovery equipment during Re-install
lubricant re-
system refrigerant removal, what must be done moved by the recovery
with the lubricant? equipment
2. Before reuse, what must be done with HFC- Question 2 options:
134a that has been recovered from a mobile Recycle the HFC-134a
A/C system using recovery-only equipment? be- fore reuse using
certified equipment
3. When can HFC-134a become combustible in a mobile If shop air is
used in the sys-
air conditioning system? about
flushing
A/C
systems?
4. Which type of mobile A/C system will usually
require additional time / precautions to
extract all the refrig- erant?
5. Electronic leak detectors certified to SAE
J2791 have the capacity of identifying
leakage rates as low as:
6. When recovery/recycling equipment is used to
re- move refrigerant from a mobile A/C
system, how much lubricant will be removed
during the operation?
7. Why is it necessary to insure that service port
caps containing good seals are installed?
8. Which of the following statements is correct
1/
5
, MACS 609 CERTIFICATION EXAM QUESTIONS & ANSWERS RATED 100%
CO RECT!!!
em in an attempt to check for leaks and HFC-134a is present
ccumulator type
minimize refrigerant loss
.15 ounces per year Flushing solvents may re-
main in A/C systems, caus-
ing problems
enerally, very little, if any
9. 5 minutes
2/
5
CO RECT!!!
1. If lubricant is removed by recovery equipment during Re-install
lubricant re-
system refrigerant removal, what must be done moved by the recovery
with the lubricant? equipment
2. Before reuse, what must be done with HFC- Question 2 options:
134a that has been recovered from a mobile Recycle the HFC-134a
A/C system using recovery-only equipment? be- fore reuse using
certified equipment
3. When can HFC-134a become combustible in a mobile If shop air is
used in the sys-
air conditioning system? about
flushing
A/C
systems?
4. Which type of mobile A/C system will usually
require additional time / precautions to
extract all the refrig- erant?
5. Electronic leak detectors certified to SAE
J2791 have the capacity of identifying
leakage rates as low as:
6. When recovery/recycling equipment is used to
re- move refrigerant from a mobile A/C
system, how much lubricant will be removed
during the operation?
7. Why is it necessary to insure that service port
caps containing good seals are installed?
8. Which of the following statements is correct
1/
5
, MACS 609 CERTIFICATION EXAM QUESTIONS & ANSWERS RATED 100%
CO RECT!!!
em in an attempt to check for leaks and HFC-134a is present
ccumulator type
minimize refrigerant loss
.15 ounces per year Flushing solvents may re-
main in A/C systems, caus-
ing problems
enerally, very little, if any
9. 5 minutes
2/
5
