Epa 608 Certification Exam Questions Questions And Answers Latest Updates 2024( A+ Graded 100% Verified).

You must know the _ before beginning a refrigerant recovery. {Ans: type of refrigerant that is in the system}You have a recovery machine certified for both R-407C and R-410A with R-410A refrigerant in it. You now have to recover refrigerant from a R-407C unit. What must be done before beginning the R-407C recovery? {Ans: Remove the R-410A from the recovery unit and hoses, change the filter drier and change the recovery cylinder to an R-407C cylinder}When working with low pressure systems the high pressure cut off should be set to not more than _ to avoid damaging the system or activating the pressure blow off device {Ans: 10 psig}During a TXV repair, refrigerant was recovered from the system. The refrigerant ________. {Ans: can be charged back into the same system after repairs are made and the system is leak checked and properly evacuated}A maximum test pressure for leak testing a low pressure centrifugal chiller is {Ans: 10 psig}_ is the only EPA SNAP approved "drop-in" replacement for R-22. {Ans: There are no direct drop in refrigerant substitutes}Which of the following proves that HCFCs are in the stratosphere {Ans: HCFCs found in air samples