MACS 609 CERTIFICATION QUESTIONS AND CORRECT DETAILED ANSWERS

MACS 609 CERTIFICATION QUESTIONS AND CORRECT DETAILED ANSWERS ( ANSWERS)  

Is the use of ultraviolet (UV) or fluorescent dyes approvedforall HFO-1234yf systems?
ANSWER: The use of ultraviolet (UV) or fluorescent dyesinanHFO-1234yf system is approved by some vehicle manufacturersbut not by others
What environmental effect do some refrigerant gases haveintheatmosphere?
ANSWER: They contribute to trapping heat
Which item is excluded from the SAE J2099 Standardofrefrigerant purity?
ANSWER: Sludge
What should a technician do if an A/C systemis foundtohavealow refrigerant charge?
ANSWER: Perform a leak test procedure
What is not listed in the SAE J1991 standard of refrigerant
purity?
ANSWER: Acid
Which component is unlikely to impact refrigerant charge

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