MACS 609 CERTIFICATION EXAM LATEST
EXAM 300+ QUESTIONS AND CORRECT
ANSWERS(VERIFIED ANSWERS)
The use of ultraviolet (UV) or fluorescent dyes in an HFO-
| | | | | | | | | |
1234yf system is: - ✔✔ANSWER ✔✔-Approved by some
| | | | | | | |
vehicle manufactures but not by others
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One effect of some refrigerant gases in the atmosphere is
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that they: - ✔✔ANSWER ✔✔-Contribute to trapping
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heat
|
Which item is not mentioned in the SAE J2099 Standard of
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refrigerant purity? - ✔✔ANSWER ✔✔-Sludge
| | | | |
, When it has been determined that an A/C system has a
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low refrigerant charge, what should be done? -
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✔✔ANSWER ✔✔-Perform a leak test procedure | | | | |
Which item is not mentioned in the SAE J1991 standard of
| | | | | | | | | |
refrigerant purity? - ✔✔ANSWER ✔✔-Acid
| | | | |
Which of the following is unlikely to affect refrigerant
| | | | | | | |
charge accuracy? - ✔✔ANSWER ✔✔-A/C Compressor
| | | | | |
CFC-12 recovery equipment has SAE 3/8-inch service
| | | | | |
fittings. HFC-134a recovery equipment has: -
| | | | | |
✔✔ANSWER ✔✔-Quick-couple design | |
What is the advantage of using refrigerant identification
| | | | | | |
equipment? - ✔✔ANSWER ✔✔-Allows the ability to
| | | | | | |
determine what type of refrigerant is in system
| | | | | | | |
EXAM 300+ QUESTIONS AND CORRECT
ANSWERS(VERIFIED ANSWERS)
The use of ultraviolet (UV) or fluorescent dyes in an HFO-
| | | | | | | | | |
1234yf system is: - ✔✔ANSWER ✔✔-Approved by some
| | | | | | | |
vehicle manufactures but not by others
| | | | | |
One effect of some refrigerant gases in the atmosphere is
| | | | | | | | |
that they: - ✔✔ANSWER ✔✔-Contribute to trapping
| | | | | | |
heat
|
Which item is not mentioned in the SAE J2099 Standard of
| | | | | | | | | |
refrigerant purity? - ✔✔ANSWER ✔✔-Sludge
| | | | |
, When it has been determined that an A/C system has a
| | | | | | | | | |
low refrigerant charge, what should be done? -
| | | | | | | |
✔✔ANSWER ✔✔-Perform a leak test procedure | | | | |
Which item is not mentioned in the SAE J1991 standard of
| | | | | | | | | |
refrigerant purity? - ✔✔ANSWER ✔✔-Acid
| | | | |
Which of the following is unlikely to affect refrigerant
| | | | | | | |
charge accuracy? - ✔✔ANSWER ✔✔-A/C Compressor
| | | | | |
CFC-12 recovery equipment has SAE 3/8-inch service
| | | | | |
fittings. HFC-134a recovery equipment has: -
| | | | | |
✔✔ANSWER ✔✔-Quick-couple design | |
What is the advantage of using refrigerant identification
| | | | | | |
equipment? - ✔✔ANSWER ✔✔-Allows the ability to
| | | | | | |
determine what type of refrigerant is in system
| | | | | | | |
