MACS 609 CERTIFICATION questions with correct answers

MACS 609 CERTIFICATION questions bf bf bf




bf with correct answers bf bf




1. If flubricant
bf bf fis fremoved fby frecovery fequipment fduring fsystem frefrigerant fremoval, fwhat
bf bf bf bf bf bf bf bf bf




fmust fbe fdone fwith fthe flubricant…ANSWER>>>>>fRe-install flubricant fremoved fby fthe frecovery
bf bf bf bf bf bf bf bf bf bf bf




bf fequipment

2. Before bf freuse, fwhat fmust fbe fdone fwith fHFC-134a fthat fhas fbeen frecovered ffrom fa
bf bf bf bf bf bf bf bf bf bf bf bf




fmobile fA/C fsystem fusing frecovery-only fequipment?
bf bf bf bf bf bf




bf …ANSWER>>>>>fQuestion f2 foptions: fRecycle fthe fHFC-134a fbefore freuse fusing fcertified fequipment bf bf bf bf bf bf bf bf bf bf




3. When bf fcan fHFC-134a fbecome fcombustible fin fa fmobile fair fconditioning fsys- ftem?
bf bf bf bf bf bf bf bf bf bf




bf …ANSWER>>>>>If fshop fair fis fused fin fthe fsystem fin fan fattempt fto fcheck ffor fleaks fand fHFC-134a fis
bf bf bf bf bf bf bf bf bf bf bf bf bf bf bf bf bf




bf fpresent



4. Which ftype fof fmobile fA/C fsystem fwill fusually frequire fadditional ftime f/
bf bf bf bf bf bf bf bf bf bf bf bf fprecautions

bf fto fextract fall fthe frefrigerant?
bf bf bf bf




…ANSWER>>>>>Accumulator ftype bf




5. Electronic fleak fdetectors fcertified fto fSAE fJ2791 fhave fthe fcapacity fof fiden-
bf bf bf bf bf bf bf bf bf bf bf bf ftifying

bf fleakage frates fas flow fas
bf bf bf bf bf




…ANSWER>>>>>f0.15 founces fper fyear bf bf bf

1 bff/
bff5

, 6. When frecovery/recycling fequipment fis fused fto fremove frefrigerant ffrom fa
bf bf bf bf bf bf bf bf bf bf fmobile fA/C bf




bf fsystem, fhow fmuch flubricant fwill fbe fremoved fduring fthe fopera- ftion?
bf bf bf bf bf bf bf bf bf bf




bf …ANSWER>>>>>Generally, fvery flittle, fif fany bf bf bf bf




7. Why fis fit fnecessary fto finsure fthat fservice fport fcaps fcontaining fgood fseals fare
bf bf bf bf bf bf bf bf bf bf bf bf bf




bf finstalled?


f…ANSWER>>>>>To fminimize frefrigerant floss bf bf bf




8. Which fof fthe ffollowing fstatements fis fcorrect fabout fflushing fA/C fsystems?-
bf bf bf bf bf bf bf bf bf bf




…ANSWER>>>>>fFlushing fsolvents fmay fremain fin fA/C fsystems, fcausing fproblems bf bf bf bf bf bf bf bf




9. When fusing fan fHFC-134a frefrigerant frecovery fmachine, fafter fcompeting fthe
bf bf bf bf bf bf bf bf bf bf ffirst frecovery
bf




bf fprocess, fhow flong fmust fyou fwait, fthen fcheck fthe fmachine's fgauges ffor fa frise fin
bf bf bf bf bf bf bf bf bf bf bf bf bf bf




bf fpressure fabove fvacuum, fwhich fwould findicate fthat fthe fsystem fstill fcontains fsome
bf bf bf bf bf bf bf bf bf bf bf




bf frefrigerant? …ANSWER>>>>>f5 fminutes bf bf




10. Which ftype fof ftank fmust fbe fused fduring fthe ftransfer fof frefrigerant?
bf bf bf bf bf bf bf bf bf bf bf




bf …ANSWER>>>>>fQues- ftion f10 foptions: bf bf bf




Tanks fmarked fDOT f4BA
bf bf bf




11. When fit fhas fbeen fdetermined fthat fan fA/C fsystem fhas fa flow frefrigerant
bf bf bf bf bf bf bf bf bf bf bf bf bf fcharge,

bf fwhat fshould fbe fdone?
bf bf bf




bf …ANSWER>>>>>Perform fa fleak fdetection fprocedure bf bf bf bf




2 bff/
bff5