EPA Questions with Not/Always/True/False

Which refrigerant can be purchased by someone who is NOT a Section 608 certified technician?

• Carbon Dioxide refrigerant

• Hydrofluorocarbon refrigerants

• Hydrofluoroolefin refrigerants

• Hydrochlorofluorocarbon refrigerants

A refrigerant label to identify the type of refrigerant recovered is placed on recovery cylinders for all of the following reasons, EXCEPT to:

• Avoid accidental mixing of recovered refrigerants.

• Allow the recycler to identify the contents.

• Tell if the cylinder is safe.

• Allow the technician's company to determine the amount of refrigerant recovered for record keeping purposes.

Any person who opens an appliance containing a CFC, HCFC, or HFC for maintenance, service or repair must have at least one self-contained recovery machine available for use. The exception to this rule are persons working on;

• small appliances.

• low-pressure appliances.

• high-pressure appliances.

• very high-pressure appliances.

New household refrigerators may be factory charged with any of the following refrigerants, EXCEPT;

• R-290

• R-450A

• R-600a

• R-404A

What maintenance task must always be done to recovery/recycle equipment?

• Change the system's oil and filters

• vacuum test the equipment after every system recovery/

• pressure test the equipment after every recovery

• change the pressure gauges after every 25 recovery cycles

Refrigerants

• are heavier than air

• are lighter than air

• are the same weight as air

• always have enough oxygen to maintain the necessary levels

Which of the following repairs would always be considered "major" under EPA's regulations?

• Replacement of an evaporator coil.

• Replacement of a filter-drier.

• Replacement of a Schrader valve core.

• Replacement of a condenser fan motor.

Once you become certified, the law states that you must repair all leaks in small appliances.

• True

• False

• It depends on the size of the leak

• All of the above

1. Which of the following statements about R-1233zd is FALSE?

• It is a SNAP approved replacement for low-pressure centrifugal compressor systems.

• It is being considered for applications where R-123 might have been used.

• It is suitable for air conditioning applications where cooling water is used (large chiller applications).

• It is mildly flammable.

Which of the following statements about recycling and recovery equipment used for stationary refrigeration is FALSE?

• It must be tested by an EPA-approved third party

• Purchases of such equipment must be reported to the EPA

• It must be equipped with low-loss fittings

• Equipment designed to recover flammable refrigerant must meet a specific UL safety standard