SKILLCAT EPA 608 TEST FINAL EXAM AND
PRACTICE QUESTIONS EXAM NEWEST ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
The sale of CFC, HCFC, HFC, and HFO refrigerants to service or install refrigeration
and air conditioning equipment is; - ANSWER restricted to technicians who are EPA
certified in refrigerant recovery.
When installing any type of access fitting onto a sealed system; - ANSWER the fitting
should be leak tested before proceeding with recovery.
Which of the following does NOT meet the criteria for Type I appliance certification? -
ANSWER An MVAC-like system that holds three pounds of R-12
Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to; -
ANSWER know the type of refrigerant that is in the system.
A very large refrigerant leak can cause suffocation because refrigerants; - ANSWER are
heavier than air and displace oxygen.
All appliances must be equipped with a service aperture or process stub which is used
when adding or removing refrigerant from the appliance. What is typically used on small
appliances? - ANSWER A straight piece of tubing that is entered using a piercing
access valve.
If a large leak of refrigerant occurs such as from a filled cylinder in an enclosed area,
what action should be taken when no self-contained breathing apparatus is available? -
ANSWER Vacate and naturally ventilate the area.
If a reclamation facility receives a tank of mixed refrigerant, they may; - ANSWER
refuse to accept the refrigerant or charge extra for processing it.
The sale of CFC, HCFC, HFC, and HFO refrigerants to service or install refrigeration
and air conditioning equipment is; - ANSWER restricted to technicians who are EPA
certified in refrigerant recovery.
What acids can CFC and HCFC refrigerants decompose into at high temperatures (e.g.
open flames, glowing metal surfaces, etc.)? - ANSWER Hydrochloric and hydrofluoric
acids
, What type of certification is required for persons recovering CFCs, HCFCs, or HFCs
during maintenance, service, or repair of small appliances? - ANSWER Type I
Technician or Universal Technician
When a pungent odor is detected during a sealed system recovery and/or repair which
of the following is most likely? - ANSWER A compressor burnout has occurred.
When checking for non-condensables inside a recovery cylinder known to contain only
one refrigerant, why should the technician allow the temperature of the cylinder to
stabilize to room temperature before taking a pressure reading? - ANSWER
Comparisons to a pressure-temperature chart are only valid if both the pressure and
temperature of the refrigerant are stable and known.
What type of appliances are technicians certified to charge and open after passing the
Type I examination? - ANSWER Appliances containing 5 pounds or less of refrigerant
that have been hermetically sealed and charged at the factory.
What is the service procedure if the refrigerant in a recovery cylinder is suspected to be
contaminated? - ANSWER Weigh the cylinder
What is the maximum allowable factory charge of refrigerant for Type I appliances using
CFCs, HCFCs, or HFCs? - ANSWER 5 pounds
Which of the following are included in EPA's definition of a "small appliance?" -
ANSWER Products manufactured, fully charged and hermetically sealed in a factory
and contain 5 lbs or less of refrigerant.
When servicing a small appliance found to be leaking it is; - ANSWER not mandatory to
repair the leak but it is recommended to do so whenever possible.
When R-410A is recovered from an appliance, it; - ANSWER should be recovered into a
recovery vessel that is clearly marked to ensure that mixing of refrigerants does not
occur.
Which of the following best describes low loss fittings on refrigerant recovery devices
used to recover CFCs, HCFCs, and HFCs? - ANSWER They can be either manually
closed or automatically closed when disconnected to prevent loss of refrigerant from
hoses.
Which of the following is a true statement regarding a refrigerant that can be used as a
direct service 'drop-in' substitute for R-22? - ANSWER There is no such thing as a
"drop-in" substitute.
Which of the following is an approved refrigerant for new household refrigerators,
freezers, and combination refrigeration/freezers? - ANSWER R-600a
PRACTICE QUESTIONS EXAM NEWEST ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |
ALREADY GRADED A+
The sale of CFC, HCFC, HFC, and HFO refrigerants to service or install refrigeration
and air conditioning equipment is; - ANSWER restricted to technicians who are EPA
certified in refrigerant recovery.
When installing any type of access fitting onto a sealed system; - ANSWER the fitting
should be leak tested before proceeding with recovery.
Which of the following does NOT meet the criteria for Type I appliance certification? -
ANSWER An MVAC-like system that holds three pounds of R-12
Before beginning a refrigerant recovery procedure, it is ALWAYS necessary to; -
ANSWER know the type of refrigerant that is in the system.
A very large refrigerant leak can cause suffocation because refrigerants; - ANSWER are
heavier than air and displace oxygen.
All appliances must be equipped with a service aperture or process stub which is used
when adding or removing refrigerant from the appliance. What is typically used on small
appliances? - ANSWER A straight piece of tubing that is entered using a piercing
access valve.
If a large leak of refrigerant occurs such as from a filled cylinder in an enclosed area,
what action should be taken when no self-contained breathing apparatus is available? -
ANSWER Vacate and naturally ventilate the area.
If a reclamation facility receives a tank of mixed refrigerant, they may; - ANSWER
refuse to accept the refrigerant or charge extra for processing it.
The sale of CFC, HCFC, HFC, and HFO refrigerants to service or install refrigeration
and air conditioning equipment is; - ANSWER restricted to technicians who are EPA
certified in refrigerant recovery.
What acids can CFC and HCFC refrigerants decompose into at high temperatures (e.g.
open flames, glowing metal surfaces, etc.)? - ANSWER Hydrochloric and hydrofluoric
acids
, What type of certification is required for persons recovering CFCs, HCFCs, or HFCs
during maintenance, service, or repair of small appliances? - ANSWER Type I
Technician or Universal Technician
When a pungent odor is detected during a sealed system recovery and/or repair which
of the following is most likely? - ANSWER A compressor burnout has occurred.
When checking for non-condensables inside a recovery cylinder known to contain only
one refrigerant, why should the technician allow the temperature of the cylinder to
stabilize to room temperature before taking a pressure reading? - ANSWER
Comparisons to a pressure-temperature chart are only valid if both the pressure and
temperature of the refrigerant are stable and known.
What type of appliances are technicians certified to charge and open after passing the
Type I examination? - ANSWER Appliances containing 5 pounds or less of refrigerant
that have been hermetically sealed and charged at the factory.
What is the service procedure if the refrigerant in a recovery cylinder is suspected to be
contaminated? - ANSWER Weigh the cylinder
What is the maximum allowable factory charge of refrigerant for Type I appliances using
CFCs, HCFCs, or HFCs? - ANSWER 5 pounds
Which of the following are included in EPA's definition of a "small appliance?" -
ANSWER Products manufactured, fully charged and hermetically sealed in a factory
and contain 5 lbs or less of refrigerant.
When servicing a small appliance found to be leaking it is; - ANSWER not mandatory to
repair the leak but it is recommended to do so whenever possible.
When R-410A is recovered from an appliance, it; - ANSWER should be recovered into a
recovery vessel that is clearly marked to ensure that mixing of refrigerants does not
occur.
Which of the following best describes low loss fittings on refrigerant recovery devices
used to recover CFCs, HCFCs, and HFCs? - ANSWER They can be either manually
closed or automatically closed when disconnected to prevent loss of refrigerant from
hoses.
Which of the following is a true statement regarding a refrigerant that can be used as a
direct service 'drop-in' substitute for R-22? - ANSWER There is no such thing as a
"drop-in" substitute.
Which of the following is an approved refrigerant for new household refrigerators,
freezers, and combination refrigeration/freezers? - ANSWER R-600a
