01
Front
What does the stratospheric ozone layer absorb?
Back
The stratospheric ozone layer absorbs much of the Sun’s harmful ultraviolet radiation.
Free Online Flashcard Deck
1 Universal Certification Core Concepts Free Online FlashCards
Study 1 Universal Certification Core Concepts with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
12 cards
02
Front
How can CFCs and HCFCs deplete stratospheric ozone?
Back
UV light can break down CFCs and HCFCs in the stratosphere, releasing chlorine atoms that destroy ozone. CFCs generally have high ODP; HCFCs have lower, but nonzero, ODP.
03
Front
What does global warming potential (GWP) compare?
Back
GWP compares a gas’s heat-trapping effect with carbon dioxide over a specified period.
04
Front
Does zero ODP mean a refrigerant has no climate impact?
Back
No. A refrigerant can have zero ODP but still have high GWP and contribute to climate impacts.
05
Front
When is Section 608 certification generally required?
Back
In general, a technician needs the appropriate EPA Section 608 certification for work reasonably expected to release refrigerant, such as attaching gauges or opening a refrigerant circuit.
06
Front
What does the Section 608 venting prohibition generally bar?
Back
It generally prohibits knowingly releasing ozone-depleting refrigerants and covered substitutes during service, repair, maintenance, or disposal. Use recovery equipment instead of intentionally venting refrigerant.
07
Front
What equipment does Type I certification cover?
Back
Type I covers small appliances that are factory-made, charged, hermetically sealed, and contain five pounds or less of refrigerant.
08
Front
What is refrigerant recovery?
Back
Recovery removes refrigerant from an appliance and stores it in an external container; it does not require cleaning or testing.
09
Front
How many questions are on a Universal Section 608 test?
Back
A Universal test has 100 questions: 25 Core questions and 25 questions for each of Types I, II, and III.
10
Front
What equipment does Type II certification cover?
Back
Type II covers high- or very-high-pressure appliances, except small appliances and motor-vehicle air conditioners.
11
Front
What equipment does Type III certification cover?
Back
Type III certification covers low-pressure appliances.
12
Front
What equipment does Universal certification cover?
Back
Universal certification covers all equipment covered by Types I, II, and III.
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