Questions & 100% Correct Answers (Verified) |
Latest Update | Grade A+
1. 1.T/F Ozone at ground level ans at Stratosphere is a harmful pollutant:-
j
y yj yj yj yj yj yj yj yj yj yj yj j
y
FALSE
2. 2. For determining the Ozone Depletion Potential
yj yj yj yj yj yj yj havingbeen
j
y
assigned a factor of 1: CFC-11
yj yj yj yj yj yj
3. 3.Ozonelayerabsorbsandscatters
j
y j
y j
y j
y j
y j
y formthesun:Ultravioletlight
j
y j
y yj yj
4. 4.T/F R-134 is a chlorine-free refrigerant:TRUE
j
y yj yj yj yj yj j
y
5. 5. a refillable refrigerant cylinder must not be filled above
yj yj yj yj yj yj yj yj yj yj ofits
j
y
full capacity: 80%
yj yj yj
6. 6.T/FEster-based synthetic oils can be mixed withoils:FALSE
j
y yj yj yj yj yj yj yj yj j
y
7. 7. An award of up to
yj yj may be paid to a person suppplying yj yj yj yj yj yj yj yj yj yj
information that leads to a penalty against a technician who is intentially
yj yj yj yj yj yj yj j
y yj yj yj yj
venting: $10,000
yj yj
8. 8. MVAC systems being disposed must be evacuated to
yj yj yj yj yj yj yj yj yj of
mercury before being scrapped: 4 INCHES
yj yj yj yj yj yj
1/13
yj yj
, 9. 9. Since yj itisnolongerlegalforCFCstobemanufactured or
yj j
y j
y j
y j
y j
y j
y j
y j
y j
y yj
imported into the United States: JAN 1ST, 1996
yj yj yj yj yj yj yj yj
10. 10. Since yj yj itisillegaltoventsubstitutesforCFCand
j
y j
y j
y j
y j
y j
y j
y j
y
HCFC refrigerants: NOV 15, 1995
yj yj yj yj yj
11. 11. Each chlorine ion are able to destroy
yj yj yj yj yj yj yj yj ozone
molecules: 100,000
yj yj
12. 12.Lifetime of CFSs is believed to range from
yj yj yj yj yj yj yj yj yj years:20TO100 j
y yj yj
13. 13.Ozone molecules consists of yj yj yj yj yj atomsof oxygen:- yj yj j
y
THREE
14. 14.Non-condensables in a refrigeration system result in a yj yj yj yj yj yj yj
dischargepressure:higher yj j
y
15. 15.T/F Ozone depletion increases global warming:TRUE
j
y yj yj yj yj yj j
y
16. 16.T/F If a technician is already trained and certified to handle HFC-134a-
j
y yj yj yj yj yj yj yj yj yj yj yj
:FALSE j
y
17. 17.The Clean Air Act (CAA) of yj yj yj yj yj yj directs EPA to establish j
y j
y j
y
requirements: 1990
yj yj
18. 18.OvertheroadrefrigerationunitsandR-22(HCFC)airconditioning:such as
j
y j
y j
y j
y j
y j
y j
y j
y j
y j
y j
y yj
that found in buses, also require Section
yj yj certification, 608
yj yj yj yj yj yj yj
19. 19.MoisturelevelinRecycledR-12(CFC-12)thathasbeendirectlyremoved
j
y j
y j
y j
y j
y j
y j
y j
y j
y j
y
from: and intended to be returned to, a mobile air-conditioning system cannot exceed
yj yj yj yj yj yj yj yj yj yj yj yj yj yj
PPM by weight, 15 yj yj yj
20. 20.At high temperature CFC-12 can decompose to form
j
y yj yj yj yj yj yj yj yj :-
j
y
hydrochloricorhydrofluoricacid yj yj yj
21. 21.T/F Refrigerants are light than air:FALSE
j
y yj yj yj yj yj j
y
2/13
yj yj