MACS 609 CERTIFICATION EXAM || MOST RECENT EXAM
ACTUAL COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ |
GUARANTEED SUCCESS!! NEWEST EXAM | JUST RELEASED!!
When performing engine pre-heat for refrigerant removal, the technician
should do ALL of the following EXCEPT:
Make sure the compressor is operating
PAG lubricant:
Is hygroscopic (absorbs moisture)
Electronic leak detectors certified to SAE J2791 have the capability of
identifying leakage rates as low as:
0.15 ounce (4 grams) per year
When using an HFC-134a refrigerant recovery machine, after completing
the first recovery process, how long must you wait, then check the
machine's gauges for a rise in pressure above vacuum, which would
indicate that the system still contains some refrigerant?
5 minutes
, A/C system service equipment hoses must be equipped with shutoff
valves located within from the "vehicle end" of the hoses.
12 inches
To what does Ozone Depletion Potential (ODP) refer?
Relative ability to destroy ozone
Which type of tank must be used during the transfer of refrigerant?
Tanks marked DOT 4BA
When can HFC-134a become combustible in a mobile air conditioning system?
If shop air is used in the system in an attempt to check for leaks and HFC-134a
is present
Mineral-based lubricants are used in which type of mobile A/C system?
CFC-12
How much moisture is removed from a mobile A/C system during a
typical evacuation?
Possibly none
ACTUAL COMPLETE REAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ |
GUARANTEED SUCCESS!! NEWEST EXAM | JUST RELEASED!!
When performing engine pre-heat for refrigerant removal, the technician
should do ALL of the following EXCEPT:
Make sure the compressor is operating
PAG lubricant:
Is hygroscopic (absorbs moisture)
Electronic leak detectors certified to SAE J2791 have the capability of
identifying leakage rates as low as:
0.15 ounce (4 grams) per year
When using an HFC-134a refrigerant recovery machine, after completing
the first recovery process, how long must you wait, then check the
machine's gauges for a rise in pressure above vacuum, which would
indicate that the system still contains some refrigerant?
5 minutes
, A/C system service equipment hoses must be equipped with shutoff
valves located within from the "vehicle end" of the hoses.
12 inches
To what does Ozone Depletion Potential (ODP) refer?
Relative ability to destroy ozone
Which type of tank must be used during the transfer of refrigerant?
Tanks marked DOT 4BA
When can HFC-134a become combustible in a mobile air conditioning system?
If shop air is used in the system in an attempt to check for leaks and HFC-134a
is present
Mineral-based lubricants are used in which type of mobile A/C system?
CFC-12
How much moisture is removed from a mobile A/C system during a
typical evacuation?
Possibly none
