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