EPA 608 STUDY MATERIAL INCLUDING
(CORE, TYPE 1, 2 AND 3) EXAM
QUESTIONS WITH COMPLETE ANSWER
A vacum pump should be connected - answer-as far away from the pump as possible
A high capacity vacuum pump and short, large diameter hoses will - answer-
dramatically reduce emissions, pressure drop, and evacuation/dehydration time
Ozone contains three - answer-oxygen atoms
One chlorine atom can destroy - answer-100,000 ozone molecules
Cfc's do not dissolve in water and do not breakdown into other compounds that dissolve
in water - answer-cfc's cannot be washed out of the lower atmosphere
Odp - answer-ozone depletion potential
Azeotrope - answer-where the mixture behaves like a single chemical (new refrigerant)
Hfc's will not damage the ozone in the stratosphere - answer-...
In 1992 the united states ordered the stoppage of all cfc production and importation
after - answer-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 - answer-july 1, 1992
Class 1 - answer-cfc
Class 2 - answer-hcfc
It became illegal to vent substitutes for cfc and hcfc refridgerants on - answer-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. - answer-appliance
Self contained recovery equipment type - answer-active
System dependent recovery equipment type - answer-passive
, Only section 609 certified technicians may buy cfc-12 in containers smaller than 20
pounds - answer-...
Who must ensure that all refridgerant has been recovered prior to disposal of any
appliance - answer-the final person in the disposal chain (scrap metal recycler, landfill
owner, ect.)
The removal of refridgerant in any condition - answer-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 - answer-recycling
A complicated distillation process that returns recovered refridgerant to the purity of
factory fresh refridgerant. - answer-reclaiming (ari standard 700)
Under no circumstance should different refridgerants be - answer-mixed together
Currently there is not a drop-in for cfc-12 - answer-...
Oils that are hygroscopic - answer-ester based (polyolesters)
The alkylbenzene, use for some ternary blends - answer-...
As a general rule, different lubricants should never be mixed - answer-...
Oxygen and oil when mixed can form an - answer-extremely explosive mixture
Sight glasses can be cleaned with - answer-alcohol spray
Before discarding a container the internal cylinder pressure should be reduced to at
least - answer-0 psig
Recovery cylinders must be approved by - answer-department of transportation (dot)
Refridgerant cylinders should never be filled above - answer-80% capacity
Refridgerant cylinders should always be stored - answer-vertical or upright position with
their valves at the top
Service oses must be fitted with some type of low loss fitting - answer-to prevent the
loss of refridgerant
For small appliances, this service port typically is a straight piece of tubing that is
entered using a - answer-piercing access valve
(CORE, TYPE 1, 2 AND 3) EXAM
QUESTIONS WITH COMPLETE ANSWER
A vacum pump should be connected - answer-as far away from the pump as possible
A high capacity vacuum pump and short, large diameter hoses will - answer-
dramatically reduce emissions, pressure drop, and evacuation/dehydration time
Ozone contains three - answer-oxygen atoms
One chlorine atom can destroy - answer-100,000 ozone molecules
Cfc's do not dissolve in water and do not breakdown into other compounds that dissolve
in water - answer-cfc's cannot be washed out of the lower atmosphere
Odp - answer-ozone depletion potential
Azeotrope - answer-where the mixture behaves like a single chemical (new refrigerant)
Hfc's will not damage the ozone in the stratosphere - answer-...
In 1992 the united states ordered the stoppage of all cfc production and importation
after - answer-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 - answer-july 1, 1992
Class 1 - answer-cfc
Class 2 - answer-hcfc
It became illegal to vent substitutes for cfc and hcfc refridgerants on - answer-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. - answer-appliance
Self contained recovery equipment type - answer-active
System dependent recovery equipment type - answer-passive
, Only section 609 certified technicians may buy cfc-12 in containers smaller than 20
pounds - answer-...
Who must ensure that all refridgerant has been recovered prior to disposal of any
appliance - answer-the final person in the disposal chain (scrap metal recycler, landfill
owner, ect.)
The removal of refridgerant in any condition - answer-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 - answer-recycling
A complicated distillation process that returns recovered refridgerant to the purity of
factory fresh refridgerant. - answer-reclaiming (ari standard 700)
Under no circumstance should different refridgerants be - answer-mixed together
Currently there is not a drop-in for cfc-12 - answer-...
Oils that are hygroscopic - answer-ester based (polyolesters)
The alkylbenzene, use for some ternary blends - answer-...
As a general rule, different lubricants should never be mixed - answer-...
Oxygen and oil when mixed can form an - answer-extremely explosive mixture
Sight glasses can be cleaned with - answer-alcohol spray
Before discarding a container the internal cylinder pressure should be reduced to at
least - answer-0 psig
Recovery cylinders must be approved by - answer-department of transportation (dot)
Refridgerant cylinders should never be filled above - answer-80% capacity
Refridgerant cylinders should always be stored - answer-vertical or upright position with
their valves at the top
Service oses must be fitted with some type of low loss fitting - answer-to prevent the
loss of refridgerant
For small appliances, this service port typically is a straight piece of tubing that is
entered using a - answer-piercing access valve
