EPA Supplemental

50 Questions | Total Attempts: 48

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EPA Quizzes & Trivia

The following exam is produced to test knowledge of safe refrigerant handling and EPA regulations regarding the HVAC industry. �


Questions and Answers
  • 1. 
     __ is a blend of two or more components whose equilibrium vapor phase and liquid phase compositions are the same at a given pressure.
    •  
    • A. 

      Azeotrope

    • B. 

      Compound

    • C. 

      Fractionation

    • D. 

      Halocarbon

  • 2. 
    __ is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine.
    • A. 

      Azeotrope

    • B. 

      Compound

    • C. 

      Fractionation

    • D. 

      Halocarbon

  • 3. 
    Chlorofluorocarbons (CFCs) consist of ___,  ___, and __ .
    • A. 

      Chlorine, fluorine, carbon

    • B. 

      .chlorine, fluorine, cesium

    • C. 

      Carbon, fluorine, other chemicals

    • D. 

      Cesium, fluoride, carbon

    • E. 

      Chlorine, fluoride, carbon

  • 4. 
    CFCs are chemically very stable because they contain no __ .
    •  
    • A. 

      Hydrogen

    • B. 

      Bromine

    • C. 

      Chlorine

    • D. 

      .air

  • 5. 
    CFCs are damaging to the __ ozone layer.
    • A. 

      Atmospheric

    • B. 

      Stratospheric

    • C. 

      Marine

    • D. 

      Climatic

  • 6. 
    Of the three common types of refrigerants __ has the highest high ozone-depletion potential (ODP).
    •  
    • A. 

      CFCs

    • B. 

      HCFCs

    • C. 

      HFCs

    • D. 

      LJCs

  • 7. 
    _ test methods are assumed by the EPA as the most effective methods for locating the general area of small leaks.
    •  
    • A. 

      Electronic and Ultrasonic

    • B. 

      Halide torch

    • C. 

      Soap bubble

    • D. 

      Both I and 2

  • 8. 
    After evacuation of a system, if the pressure rises ABOVE ambient pressure, then ____.
    •  
    • A. 

      Trapped refrigerant is probably boiling-off .

    • B. 

      It could be a leak

    • C. 

      .both 1and 2

    • D. 

      None of the above

  • 9. 
     In cases where the refrigerant cannot be reclaimed due to contamination with other refrigerants, the refrigerant __ .
    •  
    • A. 

      Can be legally vented to the atmosphere since it can't be reclaimed

    • B. 

      Must be destroyed by incineration at a approved facility

    • C. 

      Must be used only in Small Appliances

    • D. 

      Must be transferred into a disposable cylinder and discarded at a municipal landfill

  • 10. 
    The system vacuum gauge should be connected __ .
    • A. 

      Close to the vacuum pump

    • B. 

      As close as possible to the system being evacuated

    • C. 

      In series to avoid EPA problems

    • D. 

      In parallel to avoid EPA problems

  • 11. 
    Manufacture of CFCs will be banned after December 31, __ .
    •  
    •   
    • A. 

      1994

    • B. 

      1995

    • C. 

      2000

    • D. 

      2010

  • 12. 
    A second category of refrigerants currently available is the hydrochlorofluorocarbons (HCFCs).  Although they contain chlorine, which is damaging to the ozone layer, they also contain_________, which makes them chemically less stable once they enter the atmosphere.
    •  
    • A. 

      Hydrogen

    • B. 

      Water

    • C. 

      Bromine

    • D. 

      Helium

    • E. 

      Heptane

  • 13. 
    Under EPA's regulations, reclaimed refrigerant must meet __ standards for purity before it can be resold. .
    • A. 

      ARI-700

    • B. 

      ARI-740

    • C. 

      SAE 1792

    • D. 

      EPA 1992

  • 14. 
    __ recovery devices are so named because they depend on components of the system; that is, they capture refrigerant with the assistance of components in the air conditioning or refrigeration equipment they are emptying.
    •  
    • A. 

      System-dependent

    • B. 

      Self-contained

    • C. 

      System-independent

    • D. 

      Approved

    • E. 

      Illegal

    • F. 

      Automatic

  • 15. 
    All devices used for refrigerant recovery must meet __ standards.
    •  
    • A. 

      EPA

    • B. 

      DOT

    • C. 

      DOE

    • D. 

      EPRI

  • 16. 
    List one HCFC:
    • A. 

      R134a

    • B. 

      R12

    • C. 

      R22

    • D. 

      R113

  • 17. 
    Refrigerants which contain no chlorine at all are called __ .
    •  
    • A. 

      CFCs

    • B. 

      HCFCs

    • C. 

      HFCs

    • D. 

      ODCs

  • 18. 
    CHF2CF3 refrigerant is a __ .
    • A. 

      HFC

    • B. 

      HCFC

    • C. 

      HFCF

    • D. 

      HBFC

  • 19. 
    Ozone in the stratosphere consists of' molecules containing __ oxygen atom(s).
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 20. 
    __ in refrigerants causes ozone destruction.
    •  
    • A. 

      Chlorine

    • B. 

      Fluorine

    • C. 

      Both chlorine and fluorine

    • D. 

      Both fluoride and carbon

  • 21. 
    CFCs are able to reach the stratosphere because __ .
    •  
    • A. 

      They are chemically very stable

    • B. 

      They are chemically very unstable

    • C. 

      They are lighter than air

    • D. 

      They are very toxic

  • 22. 
    The lower case letter following the refrigerant number, as in 134a for example, is the:
    • A. 

      Number of A atoms

    • B. 

      Number of A molecules

    • C. 

      .form of the isomer

    • D. 

      Stands for advanced molecule.

  • 23. 
    ________ refrigerants are toxic.
    •  
    • A. 

      Group 1

    • B. 

      Group 2

    • C. 

      Group 3

    • D. 

      Group 4

  • 24. 
    __ refrigerants are nonflammable mixtures of group 1 and 3 refrigerants, which are nonflammable as formulated but whose composition can become flammable due to fractionation under some leakage situations.
    • A. 

      Group 1

    • B. 

      Group 2

    • C. 

      Group 3

    • D. 

      Group 4

  • 25. 
    __ refrigerants are flammable but not toxic.
    • A. 

      Group 1

    • B. 

      Group 2

    • C. 

      Group 3

    • D. 

      Group 4

  • 26. 
    __ refrigerants do not show flame propagation.
    •  
    •   
    • A. 

      Group 1

    • B. 

      Group 2

    • C. 

      Group 3

    • D. 

      Group 4

  • 27. 
    R-134a tanks are __________.
    •  
    • A. 

      Light blue

    • B. 

      Green

    • C. 

      Orange

    • D. 

      Yellow

  • 28. 
    Disposable cylinders are manufactured to specifications established by the_.
    • A. 

      EPA

    • B. 

      DOT

    • C. 

      IRA

    • D. 

      DOD

    • E. 

      NASA

  • 29. 
    Every refrigerant cylinder is equipped with a device that will automatically vent pressure from the cylinder before it reaches the rupture point. What is this devise called?
    • A. 

      Safety (pressure) relief valve

    • B. 

      Hand valve

    • C. 

      Needle valve

    • D. 

      Shraeder Valve

  • 30. 
    Refillable cylinders are regulated in their design, fabrication and testing by the _________ for use in the transportation of refrigerants-
    • A. 

      EPA

    • B. 

      DOT

    • C. 

      DOD

    • D. 

      EPRI

  • 31. 
    Capturing and ultimately eliminating the use of chlorofluorocarbons is being done in the United States to stop damage to the __ ozone layer.
    • A. 

      Stratospheric

    • B. 

      Ground

    • C. 

      Ultra violet

    • D. 

      Infrared

  • 32. 
    State and local governments may establish laws that contain __ regulations than Clean Air Act/EPA regulations.
    • A. 

      Stricter

    • B. 

      Less restrictive

    • C. 

      Either 1 or 2

    • D. 

      Neither 1 or 2

  • 33. 
    The Clean Air Act __ .
    •  
    • A. 

      Calls for the phase-out of CFC/HCFC production

    • B. 

      Prohibits CFC/HCFC venting as of July 1, 1992

    • C. 

      Requires the EPA to set standards for equipment and technicians

    • D. 

      All the above

  • 34. 
    Before you dispose of any appliance containing refrigerant, you must recover the refrigerant.
    • A. 

      CFC

    • B. 

      HFC

    • C. 

      HCFC

    • D. 

      All three

    • E. 

      Both 1 and 2

    • F. 

      Both 1 and 3

  • 35. 
    CFCs can no longer be manufactured or imported into the United States after _____
    • A. 

      July 1, 1992

    • B. 

      November 14, 1994

    • C. 

      January 1, 1995

    • D. 

      December 31, 1995

  • 36. 
    Recovery cylinders are painted __ in the shoulder area and twelve inches down the side.
    • A. 

      Red

    • B. 

      Green

    • C. 

      Yellow

    • D. 

      Blue

  • 37. 
    Refrigerant cylinders must bere-tested at ______ intervals.
    • A. 

      Five-year

    • B. 

      Monthly

    • C. 

      Ten-year

    • D. 

      Thirty-year

  • 38. 
    Chemically, oxygen is 02, and ozone is _____.
    •  
    • A. 

      O1

    • B. 

      O2

    • C. 

      O3

    • D. 

      O4

    • E. 

      O5

  • 39. 
    After __ individuals servicing and disposing of air conditioning and refrigeration equipment are prohibited from knowingly venting refrigerant into the atmosphere.
    • A. 

      Novernber 1, 1995

    • B. 

      July 1, 1992

    • C. 

      January 1, 1993

    • D. 

      January 1, 2000

    • E. 

      January 1, 2015

    • F. 

      July 1, 1993

  • 40. 
    Under the EPA equipment certification requirement, mandatory equipment certification would go into effect on __ .
    •  
    • A. 

      November 15, 1993

    • B. 

      January 1, 1993

    • C. 

      July 1, 1992

    • D. 

      November 14, 1994

    • E. 

      January 1,2015

    • F. 

      July 1, 1993

  • 41. 
    Under the EPA Final Rule, technician certification requirements would go into effect on
    • A. 

      November 1, 1995

    • B. 

      July 1, 1992

    • C. 

      November 14, 1994

    • D. 

      January 1, 2000

    • E. 

      January 1, 2015

    • F. 

      July 1, 1993

  • 42. 
    ______ means to clean refrigerant for reuse by oil separation and single or multiple passes through devices, such as replaceable core filter-driers, which reduce moisture, acidity and particulate matter.
    • A. 

      Recovery

    • B. 

      Recycling

    • C. 

      Reclamation

    • D. 

      Recirculate

  • 43. 
    __ requires chemical analysis of the refrigerant to verify that the ARI 700 Purity Specifications are met.
    • A. 

      Recovery

    • B. 

      Recycling

    • C. 

      Reclamation

    • D. 

      Recirculate

  • 44. 
    __ means, to remove refrigerant in any condition from a system and store it in an external container without necessarily testing or processing it in any way.
    • A. 

      Recovery

    • B. 

      Recycling

    • C. 

      Reclamation

    • D. 

      Recirculate

  • 45. 
    Used disposable refrigerant cylinders can be _____. '
    • A. 

      Recycled with other scrap metal after they are emptied and rendered useless

    • B. 

      Filled with compressed air to fix flats

    • C. 

      Re-certified as Recovery Tanks after painting

    • D. 

      Refilled twice before discarding

  • 46. 
    The internal pressure of a cylinder with one pound of liquid refrigerant is __ the internal pressure of a full 50-pound cylinder.
    •  
    • A. 

      1/50

    • B. 

      Half

    • C. 

      A quarter

    • D. 

      The same as

  • 47. 
    Refillable containers must meet __ requirements.
    • A. 

      DOT

    • B. 

      DOE

    • C. 

      ARI

    • D. 

      SAE

  • 48. 
    Approved refillable tanks should never be filled to more than __ of their total capacity.
    • A. 

      97%

    • B. 

      95%

    • C. 

      80%

    • D. 

      70%

  • 49. 
    The ozone layer absorbs and scatters __ light from the sun, which prevents harmful amounts from reaching the earth.
    •  
    • A. 

      Ultraviolet

    • B. 

      Infrared

    • C. 

      Visible

    • D. 

      Moon

  • 50. 
    Ozone at ground level is __ .
    • A. 

      A harmful pollutant

    • B. 

      A protective shield

    • C. 

      The same as oxygen

    • D. 

      Never found