EPA 608 - CORE text.txt

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EPA 608 - CORE text.txt
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  1. "1) The layer of the Stratosphere that protects us from excessive Ultra Violet radiation is comprised of:
  2. a) Nitrogen
    • b) Chlorine monoxide
    • c) Ozone
    • d) Oxygen" C
    • "2) The molecule found in CFC's and HCFC's that depletes ozone is:
  3. a) Fluorine
    • b) Hydrogen
    • c) Carbon
    • d) Chlorine" D
    • "3) Crop loss, eye disease, and skin cancer have been attributed to:
  4. a) Depletion of Stratospheric nitrogen
    • b) Depletion of Stratospheric chlorine monoxide
    • c) Depletion of Stratospheric ozone
    • d) Depletion of stratospheric oxygen" C
    • "4) How many chlorine atoms does it take to destroy 1,000,000 (one million) ozone molecules?
  5. a) 1
    • b) 10
    • c) 100
    • d) 1,000" B
    • "5) The chlorine in CFC's will:
  6. a) Dissolve in water
    • b) Not dissolve in water
    • c) Rain out of the atmosphere
    • d) Is heavier than air and cannot rise to the stratosphere" B
    • "6) HCFC's contain:
  7. a) Chlorine, Fluorine, and Carbon
    • b) Hydrogen, Chlorine, Fluorine, and Carbon
    • c) Hydrogen, Fluorine, and Carbon
    • d) Hydrogen, Fluorine, and Olefin" B
    • "7) Which of the following has the highest Ozone Depletion Potential?
  8. a) HFO’s
    • b) HCFC’s
    • c) HFC’s
    • d) CFC’s" D
    • "8) Technicians have been required to be certified to service, maintain, or dispose of appliances containing regulated refrigerants since:
  9. a) July 1, 1992
    • b) May 1, 1993
    • c) November 14, 1994
    • d) November 15, 1995" C
    • "9) It has been a violation of EPA Section 608 regulations to vent CFC's or HCFC's since:
  10. a) July 1, 1992
    • b) May 1, 1993
    • c) November 14, 1994
    • d) November 15, 1995" A
    • "10) It has been a violation of EPA Section 608 regulations to vent HFC's since:
  11. a) July 1, 1992
    • b) May 1, 1993
    • c) November 14, 1994
    • d) November 15, 1995" D
    • "11) Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for:
    • a) Recovery cylinders
    • b) One pound cans
    • c) Disposable cylinders
    • d) Accumulator cylinders" C
    • "12) Which international agreement (Treaty) regulated the production and use of CFCs, HCFC's, halons, methyl chloroform and carbon tetrachloride?
  12. a) Kyoto Treaty
    • b) Montreal Protocol
    • c) Council of Nicaea
    • d) Treaty of Ghent" B
    • "13) Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the refrigerant by passing it through one or more filter driers, is the definition of:
  13. a) Recover
    • b) Reclaim
    • c) Reuse
    • d) Recycle" D
    • "14) To process refrigerant to a level equal to new (Virgin) product specifications as determined by chemical analysis defines:
  14. a) Recovery
    • b) Reclaiming
    • c) Reuse
    • d) Recycle" B
    • "15) HFC's:
  15. a) Will not damage stratospheric ozone
    • b) Will damage stratospheric ozone
    • c) Will deplete stratospheric ozone
    • d) Are only harmful to ground level ozone" A
    • "16) When chlorine monoxide is found in the stratosphere, it indicates that;
    • a) We are well protected from harmful UV radiation:
  16. b) Additional ozone is being created
    • c) Harmful nitrous oxide is also present
    • d) The ozone layer is being depleted" D
    • "17) Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs):
  17. a) Both contain hydrogen
    • b) Are explosive
    • c) Are ODP substances
    • d) Will be completely phased-out in 2030" C
    • "18) The two types of recovery systems are:
  18. a) System dependent and passive
    • b) System dependent and self contained
    • c) Self contained and active
    • d) Recycling and reclaiming" B
    • "19) When a system is in full vacuum:
  19. a) It is dangerous to charge the system
    • b) Never use a micron gauge
    • c) Never energize the compressor
    • d) No precautions are required" C
    • "20) The evaporator:
  20. a) Changes a high pressure vapor to a high pressure liquid
    • b) Changes a low pressure vapor to a low pressure liquid
    • c) Changes a high pressure liquid to a low pressure liquid
    • d) Changes a low pressure liquid to a low pressure vapor" D
    • "21) The condenser:
  21. a) changes a high pressure vapor to a high pressure liquid
    • b) changes a low pressure vapor to a low pressure liquid
    • c) changes a high pressure liquid to a low pressure liquid
    • d) changes a low pressure liquid to a low pressure vapor" A
    • "22) The metering device:
  22. a) Changes a high pressure vapor to a high pressure liquid
    • b) Changes a low pressure vapor to a low pressure liquid
    • c) Changes a high pressure liquid to a low pressure liquid
    • d) Changes a low pressure liquid to a low pressure vapor" C
    • "23) The compressor:
  23. a) Changes a high pressure vapor to a high pressure liquid
    • b) Changes a low pressure vapor to a high pressure vapor
    • c) Changes a high pressure liquid to a low pressure liquid
    • d) Changes a low pressure liquid to a low pressure vapor" B
    • "24) An ozone molecule contains:
  24. a) One oxygen atom
    • b) Two oxygen atoms
    • c) Three oxygen atoms
    • d) Four oxygen atoms" C
    • "25) Which type of refrigerant contains no chlorine?
  25. a) HCFC’s
    • b) HCFC Blends
    • c) HFC’s
    • d) CFC’s" C
    • "26) What chemical in a CFC molecule is responsible for ozone depletion?
  26. a) Methane
    • b) Chlorine
    • c) Ammonia
    • d) Hydrogen Peroxide" B
    • "27) The Clean Air Act of 1990 made it a violation to vent CFC’s or HFC’s beginning:
  27. a) July 1, 1992
    • b) November 15, 1993
    • c) November 14, 1994
    • d) December 31, 1995" A
    • "28) What group of refrigerants has the highest ozone depletion potential (ODP)?
  28. a) CFC’s
    • b) HFC’s
    • c) HCFC’s
    • d) None of the above" A
    • "29) Ozone is a chemical:
  29. a) That is mined from the earth
    • b) That is made up of 3 atoms of Oxygen (O3)
    • c) That is made up of 2 atoms of Oxygen (O2)
    • d) That is made up of 1 atom of Oxygen" B
    • "30) Why do CFC’s and HCFC’s get up to the stratosphere and other chlorine based chemicals do not?
  30. a) CFCs and HCFC’s won’t precipitate out of the stratosphere AFTER being swept up by winds
    • b) CFCs and HCFC’s are lighter than air and float up to the stratosphere
    • c) CFC’s and HCFC’s have ion bonds that attract them toward the outer atmosphere
    • d) CFC’s and HCFC’s are chemicals with a log of elasticity, when they hit the ground they “bounce” up to the stratospheres" A
    • "31) How many ozone molecules can be destroyed by just one chlorine atom in the stratosphere?
  31. a) 11.573
    • b) 5 trillion
    • c) 100,000
    • d) All of them" C
    • "32) What chemical was found in the stratosphere that indicated ozone depletion?
  32. a) Radon
    • b) Nitrogen
    • c) Carbon Dioxide
    • d) Chlorine Monoxide" D
    • "33) Disposal of any appliance or equipment containing either CFCs or HCFCs must be preceded by:
  33. a) Refrigerant recovery
    • b) Refrigerant venting to atmosphere
    • c) Notification of local EPA office
    • d) Burning of the refrigerant in case it is contaminated" A
    • "34) Which of these protects the earth from ultra violet radiation?
  34. a) Freon
    • b) Nitrogen
    • c) Chlorine monoxide
    • d) Stratospheric ozone" D
    • "35) AFTER CFC’s are no longer manufactured or imported AFTER 1996, where will technicians get CFC’s for servicing older systems?
  35. a) From reclamation centers following recovery
    • b) From recycling
    • c) From old stocks of “Virgin” refrigerant
    • d) All of the above" D
    • "36) Systems containing CFC-12 and systems containing HCFC-22 have what in common?
  36. a) These refrigerants are interchangeable, there is no difference in them
    • b) They are both equally harmful to the ozone
    • c) They are considered Class I and Class II respectively by the EPA, and must be recovered or recycled AFTER July 1, 1992
    • d) At 100 degrees they both have the same saturation pressure" C
    • "37) States and local authorities can:
  37. a) Pass laws as equally strict as EPA rules
    • b) Pass laws even more stringent than EPA rules
    • c) Pass local laws that void EPA regulations
    • d) Both A and B" D
    • "38) The EPA can offer rewards for information that individuals are unlawfully venting regulated refrigerants. What is the maximum amount of the reward?
  38. a) $2,500
    • b) $10,000
    • c) $25,000
    • d) $100,000" B
    • "39) What is an azeotropic refrigerant mixture?
  39. a) It is a mixture of refrigerants that separate easily
    • b) It has a saturation pressure the same as R-12
    • c) It is a blend that “fractionates”
    • d) It is a mixture of refrigerants that act as a single compound refrigerant over the entire pressure-temperature range" D
    • "40) The oils that must be used with HFC refrigerant applications are:
  40. a) Esters
    • b) Alkylbenzenes
    • c) Mineral oils
    • d) All oil is compatible with HFC’s" A
    • "41) Which of the following is Personal Protective Equipment (PPE) that you should wear when working with refrigerants?
  41. a) Eye protection (Glasses/goggles)
    • b) Protective gloves
    • c) Safety Shoes (Steel toe/non-slip)
    • d) All of the above" D
    • "42) EPA regulations require that reclaimed refrigerant must meet _____ standard BEFORE re-selling it?
  42. a) ARI-700
    • b) DOL – UVB 3490
    • c) RSES / IHACI 800
    • d) IT 701" A
    • "43) Removing refrigerant in any condition from a system and storing it in a DOT approved container without testing or reprocessing in any way would be:
  43. a) Recycle
    • b) Recover
    • c) Reclaim
    • d) Refurbish" B
    • "44) What steps are we required to take to halt the damage to the Ozone layer?
  44. a) Properly capturing refrigerants when servicing or disposing of equipment
    • b) Keep systems leak tight
    • c) Ultimately eliminating CFC’s and HCFC’s
    • d) All of the above" D
    • "45) How many different types of refrigerants may legally be put into the same recovery cylinder?
  45. a) One
    • b) Three
    • c) Doesn’t matter if they are all HCFC’s
    • d) Varies with different reclamation companies" A
    • "46) Which part of the vapor compression system changes a low pressure vapor to a high pressure vapor?
  46. a) Refrigerant control (Metering device)
    • b) Evaporator
    • c) Compressor
    • d) Condenser" C
    • "47) If the hoses used in a recovery operation too long, it could cause:
  47. a) Excessive recovery time
    • b) Increased chances of emissions
    • c) Too much pressure drop
    • d) All of the above" D
    • "48) Can recovered refrigerant be placed in a disposable container?
  48. a) Yes, any empty cylinder is acceptable for recovery
    • b) No, previously used, disposable cylinders are used only with virgin refrigerant and may NEVER be used for recovery
    • c) You should use ANY Recovery cylinder including propane cylinders, filled with ANY recovered refrigerant
    • d) Both A and C" B
    • "49) A recovery cylinder must not be filled more than ___% of its capacity by weight.
    • a) 40
    • b) 65
    • c) 80
    • d) 99" C
    • "50) How should refrigerant cylinders be shipped?
  49. a) Up-side-down with EPA approved cylinders
    • b) Up-right with proper DOT classification tags
    • c) On their side by an EPA approved trucking firm
    • d) On EPA approved shipping pallets" B
    • "51) When section 608 laws and regulations are violated:
  50. a) The technician could face fines
    • b) The technician could be compelled to appear in federal court
    • c) The technician could lose their certification
    • d) All of the above" D
    • "52) Which of the following is a violation of the Clean Air Act?
  51. a) Venting refrigerants
    • b) Failing to evacuate appliances BEFORE disposal
    • c) Failing to keep records or falsifying reports
    • d) All of the above" D
    • "53) Recovery equipment that relies on the refrigeration system compressor or refrigeration system pressure would be classified as:
  52. a) Self-contained
    • b) System dependent
    • c) Inefficient equipment
    • d) Vacuum pump assisted" B
    • "54) Which refrigerant does not contain chlorine?
  53. a) R-12
    • b) R-22
    • c) R-134a
    • d) R-500" C
    • "55) Ozone in the stratosphere contains:
  54. a) Molecules made up of 3 oxygen atoms (O3)
    • b) Molecules made up of 100 oxygen atoms
    • c) Pollutants from earth
    • d) Molecules of chlorine atoms" A
    • "56) All devices used for refrigerant recovery must:
  55. a) Have reciprocating compressors
    • b) Meet EPA standards
    • c) Have rotary compressors
    • d) Have a built-in storage tank for refrigerants" B
    • "57) Blended refrigerants leak from a system:
  56. a) All the time due to their chemical make-up
    • b) At uneven rates due to various vapor pressures
    • c) Only in a liquid form
    • d) Slower than HFC refrigerants" B
    • "58) Ozone Depletion Potential (ODP) refers to what?
  57. a) The ability of Ozone to damage things at ground level
    • b) The danger of depleting Ozone from the oceans
    • c) The potential for a chemical to cause depletion of stratospheric Ozone
    • d) Both A and B" C
    • "59) The refrigerants that have the highest ODP are:
  58. a) HFC’s
    • b) Blends
    • c) CFC’s
    • d) HCFC’s" C
    • "60) What is Ozone made of?
  59. a) One Oxygen atom and 2 Hydrogen atoms
    • b) Two Oxygen atoms and 1 Hydrogen atom
    • c) Three Oxygen Atoms bound together
    • d) Two Oxygen atoms and 2 Chlorine atoms" C
    • "61) What chemical has been found in the stratosphere indicating ozone depletion
  60. a) Radon
    • b) Nitrogen
    • c) Carbon dioxide
    • d) Chlorine monoxide" D
    • "62) What group of refrigerants has the highest ozone depletion potential (ODP)?
  61. a) CFC’s
    • b) HFC’s
    • c) HCFC’s
    • d) All of the above are equa" A
    • "63) What chemical linked to Ozone destruction is found in CFC’s and HCFC’s?
  62. a) Fluorine
    • b) Carbon
    • c) Hydrogen
    • d) Chlorine" D
    • "64) It is believed Chlorine in the stratosphere comes mainly from CFC’s, and not from natural occurrences like volcanoes because
  63. a) The rise in the quantity of chlorine measured in the stratosphere over the past two decades matches the rise in the quantity of fluorine, which has a different natural source than chlorine, over a given period.
    • b) The rise in the quantity of chlorine measured in the stratosphere over the past two decades matches the increased CFC emission over that period.
    • c) Samples of air taken from the stratosphere over erupting volcanoes show that volcanoes constitute a very small amount of chlorine added to the stratosphere compared to CFC’s.
    • d) All of the above." D
    • "65) We believe Chlorine in the stratosphere comes mainly from CFC’s, not volcanoes because
  64. a) The rise of chlorine matches the rise in fluorine – these both come from CFC’s and HCFC’s
    • b) The rise in chlorine matches the increased CFC emission over that period.
    • c) Air Samples over erupting volcanoes show volcanoes add only a small amount of chlorine.
    • d) All of the above." D
    • "66) Ester (Polyolesters, POE) based oils can be mixed with:
  65. a) Poly-Alkylene Glycol oils
    • b) Paraffin based mineral oils
    • c) Alkylbenzene, synthetic oils
    • d) No other oils" D
    • "67) What is an Azeotropic refrigerant mixture?
  66. a) It is a mixture of refrigerants that separates easily
    • b) It has a saturation pressure the same as R-12
    • c) It is a blend that can “fractionate”
    • d) It is a mixture of refrigerants that acts as a single compound refrigerant over its entire pressure-temperature range." D
    • "68) Depletion of the stratospheric Ozone layer is considered what kind of problem?
  67. a) National (United States only)
    • b) A global problem (Whole world)
    • c) Statewide Only (California)
    • d) Galactic (The Milky Way at least)" B
    • "69) The chemical found in the stratosphere that shields the earth from ultraviolet radiation is what?
  68. a) Chlorine monoxide
    • b) Sulfur hydroxide
    • c) Radon
    • d) Ozone" D
    • "70) Hydrochlorofluorocarbon (HCFC) refrigerants contain:
  69. a) Hydrazine-Carbon-Feldspar-Calcium
    • b) Hydrogen-Calcium-Fiberglass-Carbon
    • c) Hydrogen-Chlorine-Freon-Calcium
    • d) Hydrogen-Chlorine-Fluorine-Carbon" D
    • "71) Which of the following is an HCFC?
  70. a) R-134a
    • b) R-123
    • c) R-22
    • d) Both B and C" D
    • "72) Chlorofluorocarbons (CFC’s) are so named because they contain:
  71. a) Carbon-Feldspar-Calcium
    • b) Calcium-Fiberglass-Carbon
    • c) Chlorine-Freon-Calcium
    • d) Chlorine-Fluorine-Carbon" D
    • "73) Which refrigerants do not harm the Ozone, because they do not contain Chlorine?
  72. a) HFC-134a, HFC-410A, and HFC-404A
    • b) HCFC-123
    • c) HCFC-22, HCFC-409A, and HCFC-408A
    • d) CFC-12, CFC-500, and CFC-502" A
    • "74) What chemical that has been found in the stratosphere, shows that there has been Ozone destruction happening?
  73. a) Hydrogen dioxide
    • b) Carbon tetrachloride
    • c) Chlorine monoxide
    • d) Sulphur dioxide" C
    • "75) If a technician vents CFC’s, HCFCs, and HFC’s, or fails to achieve required evacuation levels, or falsifies records, this will:
  74. a) Be considered a violation of the Clean Air Act
    • b) Violate the Montreal Protocol
    • c) Could violate state and/or local laws
    • d) All of the above" D
    • "76) How should refrigerant recovery cylinders be positioned prior to shipment?
  75. a) Upright
    • b) In one time use, disposable refrigerant cylinders
    • c) In D.O.T. approved recovery cylinders (Gray with yellow tops)
    • d) Both A and C" D
    • "77) Refrigerant leaves the receiver of a refrigeration system as a:
  76. a) Low pressure liquid
    • b) Low pressure vapor
    • c) High pressure liquid
    • d) High pressure vapor" C
    • "78) How full should a recovery cylinder be filled? (Select the maximum)
  77. a) 70% full
    • b) 75% full
    • c) 80% full
    • d) 85% full" C
    • "79) What is being done by the “Clean Air Act of 1990” to stop damage to stratospheric Ozone?
  78. a) Sets dates for phase-out of CFC’s and HCFC’s
    • b) Outlaws venting of CFC’s and HCFC’s and their substitutes
    • c) Requires the EPA to set standards for required evacuation levels
    • d) All of the above" D
    • "80) AFTER an evacuation, a “Standing vacuum test” is performed. Why might a system not hold the vacuum?
  79. a) It might have a “burned out” compressor
    • b) It might contain moisture
    • c) It might have a leak
    • d) Both B and C" D
    • "81) Recovering refrigerant means:
  80. a) To remove the refrigerant and transfer it to an external storage cylinder without necessarily testing or filtering it
    • b) To remove the refrigerant, test it and filter it by running it through filters and/or driers to reduce or eliminate contaminants, then recharging back into the original system
    • c) to return refrigerant to virgin specifications
    • d) to “burn” the refrigerant because it was mixed with another refrigerant, creating an “azeotropic” mixture" A
    • "82) To remove refrigerant, test it and filter it by running it through refrigerant filters and/or driers to reduce or eliminate contaminants, then recharging back into the original system is to do the following:
  81. a) Recovery
    • b) Recycling
    • c) Reclamation
    • d) Destruction / burning" B
    • "83) When blended refrigerants leak out of a system:
  82. a) They “fractionate” meaning that they leak out at different rates, causing a complete refrigerant change – not just “topping off” in the event of a substantial leak
    • b) They must be destroyed
    • c) The vapor is toxic
    • d) There is no oil found at or near the leak" A
    • "84) In most refrigerant accidents where death occurs the major cause usually is:
  83. a) Toxic effects of A1 refrigerants
    • b) Customers murdering technicians due to overly high charges
    • c) Oxygen deprivation
    • d) Both A and B" C
    • "85) State and local governments may establish laws that:
  84. a) Are not as strict as EPA regulations
    • b) Are stricter than EPA regulations
    • c) Are as strict as EPA regulations
    • d) Both B and C" D
    • "86) Blended refrigerants should be charged:
  85. a) As a vapor
    • b) As a liquid
    • c) Into the receiver
    • d) Any of the above" B
    • "87) The compressor does what?
  86. a) It changes a low pressure vapor to a high pressure vapor
    • b) It takes a high pressure liquid and evaporates it into a low pressure vapor
    • c) It takes a high pressure vapor and changes it into a high pressure liquid
    • d) It controls the quantity of liquid going into the evaporator" A
    • "88) For Service Technicians, violation of Clean Air Act provisions may cause:
  87. a) Loss of certification and the rights that go with it
    • b) Could trigger other possible legal action, if investigations show you were venting refrigerant, including fines, in Federal Court
    • c) Could cause legal problems and/or fines to be levied against your employer in Federal court
    • d) All of the above" D
    • "89) BEFORE disposing of any appliance containing CFC’s or HCFC’s, you must:
  88. a) Recover the refrigerants
    • b) Vent refrigerants to the atmosphere
    • c) Notify the EPA
    • d) Have the refrigerant destroyed" A
    • "90) What amount of money could a person receive for turning in someone violating the Clean Air Act provisions?
  89. a) $ 10,000
    • b) $ 2,500
    • c) $ 27,500
    • d) $ 1 trillion" A
    • "91) Cooling occurs in a direct expansion system when:
  90. a) Vapor refrigerant condenses into a sub-cooled liquid (In the condenser)
    • b) Vapor exits the liquid receiver
    • c) Liquid refrigerant evaporates into a superheated vapor (In the evaporator)
    • d) Vapor enters the refrigerant control (Cap-tube or TXV)" C
    • "92) If a system will not hold a vacuum AFTER evacuation, then:
  91. a) It has a leak
    • b) You must charge quickly BEFORE it leaks out
    • c) It requires the technician to notify EPA
    • d) It will cause a burn out compressor" A
    • "93) When recovering refrigerant, it is important NOT to mix different refrigerants in the same container because:
  92. a) It will cause the mixture to be explosive
    • b) It will create a mixture that is impossible to reclaim
    • c) You will be required to vent this mixture to comply with EPA regulations
    • d) It will create a mixture that will have to be re-labeled B1" B
    • "94) During dehydration of a refrigeration system, why might the system be heated?
  93. a) To aid in the vaporization of the moisture trapped in the system
    • b) To keep the system from leaking
    • c) To keep it nice and cozy on cold days
    • d) Customers prefer warm systems" A
    • "95) Why should a technician not overfill a refrigerant storage cylinder?
  94. a) Heavy cylinders are the number one cause of back injuries in HVAC
    • b) The extra capacity is for emergency recovery
    • c) The refrigerant could be damaged
    • d) The refrigerant could expand and escape from the pressure relief valve on the cylinder" D
    • "96) What should be done to properly maintain (active) recovery units?
  95. a) Check the compressor windings for proper resistance
    • b) Change compressor oil (and filter if used) then leak test
    • c) Repaint outside case of recovery unit
    • d) All of the above" B
    • "97) Service Technicians who violate the EPA Clean Air Act:
  96. a) May be fined
    • b) May be required to appear in Federal Court
    • c) May lose their certification
    • d) All of the above" D
    • "98) If a system will not hold a vacuum AFTER it has been evacuated:
  97. a) The system is ready to be charged with refrigerant
    • b) The metering device is restricted
    • c) There could be a leak in the system
    • d) A deep enough vacuum has been pulled" C

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