EPA 608 Type 2 Practice exam with 100% correct answers

B retrofitted or retired within 12 months. If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be; A retrofitted or retired within 3 months. B retrofitted or retired within 12 months. C replaced within 3 months. D replaced within 12 months. B 10 inches of vacuum A high-pressure appliance containing 210 lbs. of R-407C refrigerant must be evacuated (recovered) to a level of; A 15 inches of vacuum B 10 inches of vacuum C 4 inches of vacuum D 0 inches of vacuum A A system with a large leak and internal pressure of 0 psig What conditions allow for a system to be opened and repaired without recovering the refrigerant to the required vacuum level? A A system with a large leak and internal pressure of 0 psig B A system that is undergoing a major component replacement C A system that uses a CFC refrigerant D A system that has a non-operational compressor A Low ambient temperature A crankcase heater is often used to prevent refrigerant from mixing with compressor oil during periods of: ALow ambient temperature B High ambient temperature C Low humidity D High humidity C 30% Leaks must be repaired on industrial process and refrigeration units with a 50-pound charge or greater when the annualized leak rate reaches _____ or more. A 10% B 20% C 30% D 40% C 500 Microns When dehydrating a system, it should be evacuated to a minimum level of; A 30 inches of Mercury B 25,000 Microns C 500 Microns D EPA does not have a requirement D Pressure relief valve All HVAC/R systems must be protected by a; A Low-pressure switch B High-pressure switch C Compressor impedance overload D Pressure relief valve C EPA approved laboratory Proper recovery techniques begin with the use of appropriate recovery equipment that has been certified by; A EPA only B Manufacturers approved by UL C EPA approved laboratory D EPA field supervisors A-1 Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as Type _______ substances. A B-1 B B-2 C A-1 D A-2 30 % EPA regulations require that all Industrial Process Refrigeration (IPR) systems containing more than 50 pounds of refrigerant MUST be repaired when the annual leak rate exceeds; A 10 % B 20 % C 30 % D 40 % 0 inches of vacuum A high-pressure appliance containing less than 200 lbs. of an HCFC or HFC refrigerant must be evacuated (recovered) to a level of; A 15 inches of vacuum B 10 inches of vacuum C 4 inches of vacuum D 0 inches of vacuum R-744 Which of the following refrigerants is classified as a very high-pressure refrigerant? A CFC-11 B R-744 C HCFC-123 D R-410A 15" Hg When recovering refrigerant from a medium-pressure system with more than 200 lbs. of refrigerant, recover to a level of; A 0" Hg B 4" Hg C 10" Hg D 15" Hg Release to the atmosphere. What can be done with a refrigerant trace gas and nitrogen mixture after a system leak is found? A Recover the mixture. B Recover in a special recovery tank. C Recycle the refrigerant back into the system. D Release to the atmosphere. A It remains in the vapor state. What happens to a refrigerant that is heated above the saturation temperature? A It remains in the vapor state. B It remains in the liquid state. C It absorbs moisture at an increased rate. D It cools the compressor more efficiently. The quantity of refrigerant (by type) added or recovered from disposed appliances in each calendar month and quantity of refrigerant (by type) sent for reclamation or destruction. What must the equipment owners/operators include in recovered refrigerant records for equipment with refrigerant charges that range from 5 to 50 pounds? A The quantity of refrigerant (by type) added or recovered from disposed appliances each year and quantity of refrigerant (by type) sent for reclamation or destruction. B The quantity of refrigerant (by type) added or recovered from disposed appliances in each calendar month and quantity of refrigerant (by type) sent for reclamation or destruction. C The type of refrigerant, the amount added for seasonal variance, the amount added to a new unit, recovered from disposed appliances in each calendar month and quantity of refrigerant (by type) sent for reclamation or destruction. D The amount of new refrigerant added to a system in each calendar month and quantity of refrigerant (by type) sent for reclamation or destruction. A 30 days. Unless plans are made to replace a system with a leak rate that exceeds the maximum leak rate, repairs must be made within; A 30 days. B 45 days.