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According to the EPA which recovery equipment maintenance practice(s) should
be preformed on a regular basis? - ANSWER ✓ check recovery device for
refrigerant leaks
On a small appliance with an operating compressor that has a completely plugged
capillary tube, what is the minimum number of access valves that are needed to
evacuate the refrigerant - ANSWER ✓ 1 valve on the high side
Which refrigerant is most commonly used as a replacement for R-12 in new
household refrigerators - ANSWER ✓ R-134a
Small amounts of refrigerant have no odor, therefor a pungent odor is detected
during a system recovery &/or repair: - ANSWER ✓ a compressor burn-out has
likely occurred
If R-22 or R-12are exposed to high temperatures, these refrigerants can
decompose to form: - ANSWER ✓ hydrochloric & hydroflouric acids
Large spills of refrigerant can cause suffocation because: - ANSWER ✓ they are
heavier than air & displace oxygen
In the event of a large release of R-12 or R-22 in a contained area - ANSWER ✓
you should wear a "SCBA" or leave the area is required
If a large leak of refrigerant occurs in an enclosed area 7 no self-contained
breathing apparatus is available then you should - ANSWER ✓ Vacate & ventilate
the spill area