EPA 608 CERTIFICATION LATEST UPDATE ACTUAL EXAM QUESTION AND ANSWERS

How can you speed up the removal of the refrigerant charge from system?
Cooling the recovery cylinder to lower its pressure.
How long must an HVAC servicing company keep records for each disposed
appliance with a charge between 5 and 50 lbs?
3 years (Both answers)
Recovered refrigerant may contain which of the following impurities?
Acids, Moisture, and Oil
What area of a refrigeration system does oil foaming usually occur?
Compressor
What is a deep vacuum usually measured in?
Microns
What is the primary water source for a water cooled recovery unit condensing
coil?
Local municipal water supply
What is the state of the refrigerant leaving the receiver in a refrigeration system?
High pressure liquid
What should be done after reaching the required recovery vacuum on an
appliance?
Wait for at least a few minutes to see if the system pressure rises.
Which of the following CANNOT be used as a reason to extend the appliance
repair deadlines?
A certified service technician is not available.
Which of the following refrigerants would be used in a low-pressure appliance?
R-123
Which of the following repairs would always be considered "major" under EPA's
regulations?
Replacement of an Evaporator Coil