EPA 609 Technician Certification Exam Questions And Answers Verified 100% Correct

EPA 609 Technician Certification Exam Questions And Answers Verified 100% Correct 1. Which of the following will not react with ozone gas: - ANSWER FLUORINE 2. ___________________ has replaced CFC-12 in all automotive applications - ANSWER HFC-134a 3. T/F The Thermodynamic properties of HFC-134a are similar to CFC-12 - ANSWER True 4. The color code for R-12 disposable refrigerant cylinders is ______________ - ANSWER WHITE 5. T/F The primary cause of over-pressurization of refrigeration cylinder is due to overheating - ANSWER TRUE 6. As per the CAA all records related to entities of MVAC system services must be maintained for ________________________ years - ANSWER 3 7. Since _____________ it has been illegal to vent substitutes for CFC 3 and HCFC refrigerants - ANSWER NOV 15 1995 8. Since _____________ it has been mandatory to recycle HFC-134a as well as any other automotive refrigerant before returning to that MVAC or sold: - ANSWER JAN 29, 1998 9. Montreal Protocol is signed in ________________ by 23 countries including USA - ANSWER Sep 1987 10. T/F Halons were completely phased out by 1994 - ANSWER True 11. HFC-134a refrigerant has an Ozone Depletion Potential of: - ANSWER 0 12. T/F R-134a refrigerant has low solubility in non-polar lubricants - ANSWER TRUE 13. Use of Carbon Dioxide (R-744) refrigerant results in a _________________ efficiency - ANSWER MUCH LOWER 14. R-134a disposable refrigerant cylinder ________________ color coded: - ANSWER LIGHT BLUE 15. Disposable cylinder are manufactured to specifications established by: - ANSWER DOT 16. Disposable cylinders are manufactured from: - ANSWER STEEL Recovery cylinders are painted yellow in the shoulder area and ______________ down the side - ANSWER 12 INCHES Moisture content in recycled R-134a (HFC-134a) that has been directly removed from and intended to be returned to a mobile air conditioning system cannot exceed ________________ by weight - ANSWER 50 PPM T/F Technicians who repair or service HFC-134a MVACs must be trained and certified by an EPA-approved organization - ANSWER TRUE . The sale of small containers of refrigerant under ________ including the one pound cans are restricted to only people certified in Section 609 - ANSWER 20 lb 71. Average ozone construction in Earth atmosphere as a whole is only about ______________ parts per million - ANSWER 0.3 72. T/F Ozone layer is present in both Stratosphere and mesosphere layers of earth atmosphere - ANSWER FALSE 73. Which of the following refrigerant has a molecular formula is C2H4F2: - ANSWER R-152a 74. After reaching the required recovery vacuum on a system if the system pressure _______ indicating that there is either refrigerant in liquid form refrigerant trapped in the oil or a leak in the system - ANSWER RISES 75. T/F R-134a is a corrosive refrigerant - ANSWER FALSE 76. With the rising cost of refrigerant the value of the refrigerant stored in a 50lb. recovery tank is worth ____________________ the cost of a recovery tank - ANSWER FIVE TIMES 77. T/F Used Cylinders can be recycled with other scrap metal - ANSWER TRUE 78. Refrigeration cylinders must be re-tested at ___________________ intervals - ANSWER FIVE-YEAR 79. Refrigerants may be mixed in recovery cylinders - ANSWER FALSE 80. On _______________________ the U.S. EPA enacted the provisions of this agreement into regulations for the United States - ANSWER AUG 1, 1988 81. Persons servicing MVACs do not have this choice they must be certified as ______________ MVAC technicians if they perform the AC service for compensation - ANSWER SECTION