608 Universal Exam New Full Exam Questions And Answers ( Included ) 100% Correct

A rupture disc on a recovery vessel for low-pressure refrigerants relieves at: {Ans: 15 psig}Which of the following is an indicator of a leak in a high-pressure system with a capillary tube? {Ans: Excessive superheat}The EPA's leak repair requirements apply to appliances with a charge size of {Ans: 50 pounds or greater}Approved refrigerant recovery cylinders can be identified by which color code? {Ans: Yellow tops and gray bodies}It is best practice to use dry nitrogen to break the vacuum when dehydrating by the triple evacuation method. However, it: {Ans: requires a pressure regulator}What is a characteristic of a refrigerant oil that is hygroscopic? {Ans: It readily absorbs moisture}Which of the following gases is used as the baseline measurement for global warming potential? {Ans: Carbon Dioxide}Which of the following always falls under the EPA definition for "major maintenance, service, or repair"? {Ans: Replacing a compressor}A typical setting for the high-pressure cut-out control on a recovery unit used for evacuating the refrigerant from a low-pressure chiller is: {Ans: 10 psig}Why should low and high side access valves be installed when recovering refrigerant from a household refrigerator? {Ans: To improve speed of recovery}Which