WITH ANSWERS GUARANTEED TO PASS
◉ Cross-Contamination Prevention. Answer: Methods to avoid
mixing different refrigerants.
◉ Used Refrigerant. Answer: Refrigerant that has been previously
utilized.
◉ Recharging Used Refrigerant. Answer: Process of refilling systems
with reclaimed refrigerant.
◉ Refrigerant Transfer. Answer: Moving refrigerant between
containers or systems.
◉ Service Equipment Specifications. Answer: Requirements for tools
used in refrigerant service.
◉ Service Hose Fittings. Answer: Connectors for hoses in refrigerant
systems.
◉ Cylinder Inspection. Answer: Examination of refrigerant cylinders
for safety.
,◉ SAE Standards. Answer: Guidelines set by the Society of
Automotive Engineers.
◉ EPA Certification. Answer: Approval required to handle
refrigerants legally.
◉ Section 609 Certification. Answer: Certification for technicians
servicing motor vehicle A/C.
◉ Refrigerant Conservation. Answer: Practices to minimize
refrigerant loss to atmosphere.
◉ Reclamation Techniques. Answer: Methods to recover and purify
refrigerants.
◉ Environmental Impact of Refrigerants. Answer: Effects of
refrigerants on the environment.
◉ Azeotrope. Answer: A blend of two or more components whose
equilibrium vapor phase and liquid phase compositions are the
same at a given pressure.
, ◉ Barrier Hoses. Answer: A flexible rubber hose is not completely
leak proof; refrigerant can actually "seep" through these hoses and
into the atmosphere. There are new less permeable "barrier" hoses
that reduce the amount of refrigerant that can seep through the hose
and into the atmosphere.
◉ CFC-12. Answer: dichlorodifluoromethane, (R-12).
◉ Class I Refrigerant. Answer: CFC refrigerants such as R-12.
◉ Class II Refrigerant. Answer: HCFC refrigerants such as R-22.
◉ Compound. Answer: A substance formed by a union of two or
more elements in a definite proportion, by weight.
◉ Fractionation. Answer: The separation of a liquid mixture into
separate parts by the preferential evaporation of the more volatile
component.
◉ Halocarbon. Answer: A halogenated hydrocarbon containing one
or more of the three halogens: fluorine, chlorine, and bromine.
Hydrogen may or may not be present.
◉ HCFC-22. Answer: chlorodifluoromethane, (R-22).