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MACS 609 CERTIFICATION EXAM QUESTIONS WITH GUARANTEED ACCURATE ANSWERS |VERIFIED CA$18.72   Add to cart

Exam (elaborations)

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...

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  • August 25, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MACS 609 CERTIFICATION
  • MACS 609 CERTIFICATION
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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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