MACS 609 CERTIFICATION UPDATED ACTUAL Questions and CORRECT
Answers
To what does Global Warming Potential (GWP) refer?
The use of ultraviolet (UV) or fluorescent dyes in an
HFO-1234yf system is:
One effect of some refrigerant gases in the atmosphere is
that they:
Which item is not mentioned in the SAE J2099 Standard of
refrigerant purity?
When it has been determined that an A/C system has a
low refrigerant charge, what should be done?
Which item is not mentioned in the SAE J1991 standard of
refrigerant purity?
Which of the following is unlikely to affect refrigerant
charge accuracy?
CFC-12 recovery equipment has SAE 3/8-inch service fit-
tings. HFC-134a recovery equipment has:
What is the advantage of using refrigerant identification
equipment?
If an HFC-134a A/C system still has pressure after the first
refrigerant recovery process is complete (including the
five-minute pause), additional recovery is necessary until
the system vacuum level remains stable for:
Paid technicians who service or repair buses using
HCFC-22 as refrigerant, and/or service or repair aircraft
or ship/boat cargo refrigeration equipment:
Specific safety information for managing incidents involv-
ing refrigerants and other chemicals (inhalation, spills,
fires, etc.) is found in the:
, Approved by some vehicle manufactures but not by
warming effect
othersContribute to trapping heat
Sludge
Perform a leak test
procedureAcid
A/C Compressor
Quick-couple design
Allows the ability to determine what type of refrigerant
isin system
2 minutes
Must be Section 608 Type II Certified
Material safety data sheet (MSDS) for the
chemicalRelative ability to produce global
2/5
Answers
To what does Global Warming Potential (GWP) refer?
The use of ultraviolet (UV) or fluorescent dyes in an
HFO-1234yf system is:
One effect of some refrigerant gases in the atmosphere is
that they:
Which item is not mentioned in the SAE J2099 Standard of
refrigerant purity?
When it has been determined that an A/C system has a
low refrigerant charge, what should be done?
Which item is not mentioned in the SAE J1991 standard of
refrigerant purity?
Which of the following is unlikely to affect refrigerant
charge accuracy?
CFC-12 recovery equipment has SAE 3/8-inch service fit-
tings. HFC-134a recovery equipment has:
What is the advantage of using refrigerant identification
equipment?
If an HFC-134a A/C system still has pressure after the first
refrigerant recovery process is complete (including the
five-minute pause), additional recovery is necessary until
the system vacuum level remains stable for:
Paid technicians who service or repair buses using
HCFC-22 as refrigerant, and/or service or repair aircraft
or ship/boat cargo refrigeration equipment:
Specific safety information for managing incidents involv-
ing refrigerants and other chemicals (inhalation, spills,
fires, etc.) is found in the:
, Approved by some vehicle manufactures but not by
warming effect
othersContribute to trapping heat
Sludge
Perform a leak test
procedureAcid
A/C Compressor
Quick-couple design
Allows the ability to determine what type of refrigerant
isin system
2 minutes
Must be Section 608 Type II Certified
Material safety data sheet (MSDS) for the
chemicalRelative ability to produce global
2/5
