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1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant -
Answer✅✅FALSE
2. For determining the Ozone Depletion Potential __________ having been assigned
a factor of 1 - Answer✅✅CFC-11
3. Ozone layer absorbs and scatters __________ form the sun -
Answer✅✅Ultraviolet light
4. T/F R-134 is a chlorine-free refrigerant - Answer✅✅TRUE
5. a refillable refrigerant cylinder must not be filled above _________ of its full
capacity - Answer✅✅80%
6. T/F Ester-based synthetic oils can be mixed with oils - Answer✅✅FALSE
, 7. An award of up to ___________ may be paid to a person suppplying information
that leads to a penalty against a technician who is intentially venting -
Answer✅✅$10,000
8. MVAC systems being disposed must be evacuated to _____________ of mercury
before being scrapped - Answer✅✅4 INCHES
9. Since _______________ it is no longer legal for CFCs to be manufactured or
imported into the United States - Answer✅✅JAN 1ST, 1996
10. Since ___________________ it is illegal to vent substitutes for CFC and HCFC
refrigerants - Answer✅✅NOV 15, 1995
11. Each chlorine ion are able to destroy ___________________ ozone molecules -
Answer✅✅100,000
12. Lifetime of CFSs is believed to range from ________ years - Answer✅✅20 TO
100
13. Ozone molecules consists of _______________ atoms of oxygen -
Answer✅✅THREE
14.Non-condensables in a refrigeration system result in a ________________
discharge pressure - Answer✅✅higher
15. T/F Ozone depletion increases global warming - Answer✅✅TRUE
16. T/F If a technician is already trained and certified to handle HFC-134a -
Answer✅✅FALSE
17.The Clean Air Act (CAA) of _____________ directs EPA to establish requirements
- Answer✅✅1990
18. Over the road refrigeration units and R-22 (HCFC) air conditioning -
Answer✅✅such as that found in buses, also require Section ____________
certification, 608
19. Moisture level in Recycled R-12(CFC-12) that has been directly removed from -
Answer✅✅and intended to be returned to, a mobile air-conditioning system cannot
exceed ________________ PPM by weight, 15
20. At high temperature CFC-12 can decompose to form _____________ -
Answer✅✅hydrochloric or hydrofluoric acid
21. T/F Refrigerants are light than air - Answer✅✅FALSE