The Montreal Protocol. - ANSWER Which international treaty agreement was the basis
for Section 608?
1.Crop losses
2.Increases in eye diseases
3.Skin Cancer
4.Reduced marine life
5.Deforestation
6.Increased ground level ozone - ANSWER Depletion of the ozone in the stratosphere is known
to cause what 6 things?
These atoms attack Ozone Molecules causing the formation of Chlorine Monoxide (CLO), after
colliding with another Ozone Molecule, causes 2 Oxygen (O2) molecules to be made & leaving
an atom of chlorine to act as "Free Agent" starting the process over until 100,000 molecules of
Ozone are destroyed by just one atom of chloride. - ANSWER What happens when CFC or HCFC
molecules get in the stratosphere & free atoms of Chlorine are set free?
November 15, 1993 - ANSWER What date was recovery equipment required to be certified by
a lab, & achieve higher evacuation levels, & have low loss fittings?
November 14, 1994 - ANSWER On what date was technician certification required?
December 31, 1995 - ANSWER What date were CFC's phased out of production?
,Persons who maintain, service, repair, or dispose of small appliances (containing 5 pounds
of refrigerant (or less). - ANSWER What is EPA 608 Type I certification?
Persons who maintain, service, repair, or dispose of high and very high pressure appliances.
Except small appliances and motor vehicle air conditioning systems. - ANSWER What is EPA 608
Type II certification?
Persons who maintain, service, repair, or dispose of low pressure appliances. - ANSWER What is
EPA 608 Type III certification?
Persons who maintain, service, repair, or dispose of both low and high pressure equipment, as
well as appliances. - ANSWER What is EPA 608 Universal certification?
HydroChloroFluoroCarbons - ANSWER HCFC's
Commonly known as HCFC's, they are a group of man-made compunds containing hydrogen,
chlorine, fluorine, and carbon. - ANSWER What are HydroChloroFluoroCarbons?
80% - ANSWER A recovery cylinder must not be filled more than ___ % of it's capacity by
weight?
Up-right with proper DOT classification tags. - ANSWER How should refrigerant cylinders
be shipped?
Polyolester - ANSWER What oil MUST be used with ALL HFC's for HVAC/Refrigeration but
will also work with CFC's and HCFC's.
Trillion - ANSWER HCFC's have very low atmospheric concentrations measured in parts per?
,15% - ANSWER All cooling systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds___?
All CFC's - ANSWER Mineral Oils are used with?
HCFC's (Will also work with CFC's) - ANSWER Alkebenzene is used alone or as an additive for?
Polyolester - ANSWER POE
A small appliance that is manufactured, charged, and hermetically sealed in a factory with 5
lbs. of refrigerant or less. - ANSWER What is the definition of a Type I Appliance?
High pressure or very high pressure appliances except for small appliances and motor
vehicle air conditioning. Refrigeration systems containing more than 5 Lbs. of high or very
high pressure refrigerants. - ANSWER What is the definition of a Type II Appliance?
Low pressure equipment like low pressure chillers. - ANSWER What is the definition of a Type III
Appliance?
1-399 and 600 and above. - ANSWER All refrigerants are assumed to be a single chemical if they
are numbered what?
A mixture of two or more liquids in such a ratio that it's composition cannot be changed by
vaporizing it. - ANSWER What is an Azeotrope?
500 to 599 - ANSWER Azeotrope's are numbered what?
When the refrigerant leaks, it leaks out in different rates due to the different pressures. -
ANSWER What is fractionation?
, When the temperature of the vaporizing refrigerant changes, even though the
pressure remains the same. - ANSWER What is Temperature Glide?
Self-Contained and System-Dependent. - ANSWER What are the two basic types of
recovery devices?
15 Lbs of refrigerant or less - ANSWER System-Dependent devices may only be used on
appliances containing how much refrigerant?
A refrigerant label. - ANSWER What MUST be placed on a refrigerant cylinder being
returned for reclaiming.
Trapping liquid refrigerant between the service valves. - ANSWER After completing the
transfer of liquid refrigerant between a recovery unit and a refrigeration system, you should
guard against what?
Charge through a pressure regulator. - ANSWER When pressurizing a system with nitrogen, you
should always?
Recover, Recycle, and Reclaim. - ANSWER What are the three "R's"?
To remove refrigerant in any condition from a system and store it in an external approved
container. - ANSWER In relation to the three "R's" what is Recover?
To clean refrigerant for reuse by seperating the oil from the refrigerant and removing moisture
from the refrigerant by passing it through one or more filter dryers. - ANSWER In relation to the
three "R's" what is Recycle?
It cannot be re-sold but it can be re-used. - ANSWER Can Recycled refrigerant be resold?
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