MACS 609 CERTIFICATION / STUDY GUIDE Q-BANK /
EXPERT VERIFIED ACTUAL QUESTIONS & ANSWERS
FOR GUARANTEED PASS / NEWEST UPDATE,
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
EXPERT VERIFIED ACTUAL QUESTIONS & ANSWERS
FOR GUARANTEED PASS / NEWEST UPDATE,
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
