MACS 609 – CERTIFICATION EXAM PRETEST QUESTIONS WITH VERIFIED ANSWERS

MACS 609 – CERTIFICATION EXAM PRETEST QUESTIONS WITH VERIFIED ANSWERS With the recovery unit shut off wait atleast ________ minutes to determine if all refrigerant has been removed. - ANSWER 5 After initial recovery procedures, if additional recovery is required, repeat the process until the A/C system vacuum remains stable for _____ minuites. - ANSWER 2 When checking a cylinder of recycled R-134a for non condensable gases at 70 degrees F the pressure should not exceed - ANSWER 76 psig The lubricant used with HFC-134a is - ANSWER PAG or POE Refrigerant oil that is hygroscopic has a high _________ for water. - ANSWER Affinity Violation of Section 609 of the clean air act may result in ________ fine per violation. - ANSWER 27,500 HFC-134a must be recovered effective - ANSWER Nov. 15 1995 When a blend contains HCFC-22 all hoses must be replaced with _____ type hoses - ANSWER Barrier Used disposable refrigerant cylinders can be __________ with other scrap Metal after they are empty. - ANSWER Recycled