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EPA 608 Study Material Including (Core, Type 1, 2 And 3) Questions And Answers 2024
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EPA 608 Study Material Including (Core, Type 1, 2 And 3) Questions And Answers 2024
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EPA 608 Study Material Including (Core, Type 1, 2 And 3)Questions And Answers 2024
a vacum pump should be connected - ANS-as far away from the pump as possible
b b b b b b b b b b b b b b
a high capacity vacuum pump and short, large diameter hoses will - ANS-dramatically
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reduce emissions, pressure drop, and evacuation/dehydration time
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ozone contains three - ANS-oxygen atoms
b b b b b
one chlorine atom can destroy - ANS-100,000 ozone molecules
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CFC's do not dissolve in water and do not breakdown into other compounds that
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dissolve in water - ANS-CFC's cannot be washed out of the lower atmosphere
b b b b b b b b b b b b b
ODP - ANS-ozone depletion potential
b b b b
azeotrope - ANS-where the mixture behaves like a single chemical (new refrigerant)
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HFC's will not damage the ozone in the stratosphere - ANS-...
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in 1992 the united states ordered the stoppage of all CFC production and importation
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bafter - ANS-December 31, 1995
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according to the clean air act, no person installing, maintaining, repairing, or disposing
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of any appliance may knowingly vent or otherwise release into the environment and
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class 1 or class 2 substance after - ANS-July 1, 1992
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class 1 - ANS-CFC b b b
class 2 - ANS-HCFC b b b
it became illegal to vent substitutes for CFC and HCFC refridgerants on - ANS-
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November 15, 1995 b b
any device which contains and uses a class 1 or class 2 substance as a refridgerant
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and is used for household or commercial purpose. - ANS-appliance
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self contained recovery equipment type - ANS-Active
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, system dependent recovery equipment type - ANS-Passive
b b b b b b
only section 609 certified technicians may buy CFC-12 in containers smaller than 20
b b b b b b b b b b b b
pounds - ANS-...
b b b
who must ensure that all refridgerant has been recovered prior to disposal of any
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appliance - ANS-The final person in the disposal chain (scrap metal recycler, landfill
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owner, ect.)
b b
the removal of refridgerant in any condition - ANS-Recovery
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to clean refridgerant by oil seperation, non-condensable removal and single or multiple
b b b b b b b b b b b
bpasses through replaceable filter-driers to reduce moisture, acidity and particulate
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bmatter - ANS-Recycling b b
a complicated distillation process that returns recovered refridgerant to the purity of
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factory fresh refridgerant. - ANS-Reclaiming (ARI Standard 700)
b b b b b b b b
under no circumstance should different refridgerants be - ANS-mixed together
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Currently there is NOT a drop-in for CFC-12 - ANS-...
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oils that are hygroscopic - ANS-Ester based (polyolesters)
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the alkylbenzene, use for some ternary blends - ANS-...
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as a general rule, different lubricants should never be mixed - ANS-...
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oxygen and oil when mixed can form an - ANS-extremely explosive mixture
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sight glasses can be cleaned with - ANS-alcohol spray
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before discarding a container the internal cylinder pressure should be reduced to at
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least - ANS-0 psig
b b b b
recovery cylinders must be approved by - ANS-Department of Transportation (DOT)
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Refridgerant cylinders should never be filled above - ANS-80% capacity b b b b b b b b b
refridgerant cylinders should always be stored - ANS-vertical or upright position with
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btheir valves at the topb b b b
Service oses must be fitted with some type of low loss fitting - ANS-to prevent the loss
b b b b b b b b b b b b b b b b
of refridgerant
b b
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