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
airconditioning 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
22. T/F Every refrigerant cylinder need not be protected by some type
of pressure relief device - ANSWER-FALSE
23. Stratosphere layer consists of about ____________ of the
available Ozone: - ANSWER-90%
24.CFC are highly reactive in _______________ of atmosphere -
ANSWER-lower levels
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