Comprehensive Practice Q-Bank /
Newest Actual Questions & Answers
(A+ Guide Solution)
Terms in this set (120)
1. T/F Ozone at ground level FALSE
ans at Stratosphere is a
harmful pollutant
2. For determining the CFC-11
Ozone Depletion
Potential __________ having
been assigned a factor of 1
3. Ozone layer absorbs and Ultraviolet light
scatters __________ form
the sun
4. T/F R-134 is a chlorinefree TRUE
refrigerant
5. a refillable refrigerant 80%
cylinder must not be filled
above _________ of its full
capacity
6. T/F Ester-based synthetic FALSE
oils can be mixed with oils
,7. An award of up to $10,000
___________ may be paid to
a person suppplying
information that leads to a
penalty against a technician
who is intentially venting
4 INCHES
8. MVAC systems being
disposed must be
evacuated to _____________
of mercury before being
scrapped
9. Since _______________ it JAN 1ST, 1996
is no
longer legal for CFCs to be
manufactured or imported
into the United
States
10. Since NOV 15, 1995
___________________ it is
illegal to vent substitutes for
CFC and HCFC refrigerants
11. Each chlorine ion are able 100,000
to destroy
___________________
ozone
molecules
12. Lifetime of CFSs is 20 TO 100
believed to range from
________ years
13. Ozone molecules THREE
consists of
_______________
atoms of oxygen
, 14.Non-condensables in a higher
refrigeration system result in
a ________________
discharge pressure
15. T/F Ozone depletion TRUE
increases global warming
16. T/F If a technician is FALSE
already trained and
certified to handle HFC-
134a
1990
17.The Clean Air Act (CAA) of
_____________ directs EPA
to establish requirements
18. Over the road such as that found in buses, also require Section
refrigeration units and R22 ____________ certification, 608
(HCFC) air conditioning
19. Moisture level in and intended to be returned to, a mobile airconditioning
Recycled R-12(CFC-12) system cannot exceed ________________ PPM by weight,
that has been directly 15
removed from
20. At high temperature hydrochloric or hydrofluoric acid
CFC-12 can decompose to
form _____________
21. T/F Refrigerants are light FALSE
than air
22. T/F Every refrigerant FALSE
cylinder need not be
protected by some type of
pressure relief device
23. Stratosphere layer 90%
consists of about
____________ of the