MACS 609 CERTIFICATION EXAM QUESTIONS WITH GUARANTEED ACCURATE ANSWERS |VERIFIED
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Course
MACS 609 CERTIFICATION
Institution
MACS 609 CERTIFICATION
The use of ultraviolet (UV) or fluorescent dyes in an HFO-1234yf system is: - ACCURATE ANSWERS Approved by some vehicle manufactures but not by others
One effect of some refrigerant gases in the atmosphere is that they: - ACCURATE ANSWERS Contribute to trapping heat
Which item is not mentione...
MACS 609 CERTIFICATION EXAM
QUESTIONS
MACS 609 CERTIFICATION EXAM QUESTIONS WITH GUARANTEED ACCURATE
ANSWERS |VERIFIED
The use of ultraviolet (UV) or fluorescent dyes in an HFO-1234yf system is: -
ACCURATE ANSWERS✔✔ Approved by some vehicle manufactures but not by
others
One effect of some refrigerant gases in the atmosphere is that they: - ACCURATE
ANSWERS✔✔ Contribute to trapping heat
Which item is not mentioned in the SAE J2099 Standard of refrigerant purity? -
ACCURATE ANSWERS✔✔ Sludge
When it has been determined that an A/C system has a low refrigerant charge, what
should be done? - ACCURATE ANSWERS✔✔ Perform a leak test procedure
, Which item is not mentioned in the SAE J1991 standard of refrigerant purity? -
ACCURATE ANSWERS✔✔ Acid
Which of the following is unlikely to affect refrigerant charge accuracy? -
ACCURATE ANSWERS✔✔ A/C Compressor
CFC-12 recovery equipment has SAE 3/8-inch service fittings. HFC-134a recovery
equipment has: - ACCURATE ANSWERS✔✔ Quick-couple design
What is the advantage of using refrigerant identification equipment? - ACCURATE
ANSWERS✔✔ Allows the ability to determine what type of refrigerant is in
system
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: - ACCURATE
ANSWERS✔✔ 2 minutes
Paid technicians who service or repair buses using HCFC-22 as refrigerant, and/or
service or repair aircraft or ship/boat cargo refrigeration equipment: - ACCURATE
ANSWERS✔✔ Must be Section 608 Type II Certified
Specific safety information for managing incidents involving refrigerants and other
chemicals (inhalation, spills, fires, etc.) is found in the: - ACCURATE
ANSWERS✔✔ Material safety data sheet (MSDS) for the chemical
To what does Global Warming Potential (GWP) refer? - ACCURATE
ANSWERS✔✔ Relative ability to produce global warming effect
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