EXAM 2024 COMPLETE ACCURATE
EXAM QUESTIONS WITH 100%
DETAILED VERIFIED AND CORRECT
ANSWERS ACTUAL BRAND-NEW
EXAM ALREADY GRADED A+
1. T/F R-134a a refrigerant does pose a cancer or
birth defect hazard - ....ANSWER...FALSE
2. T/F MVAC systems need not be evacuated to a
vacuum before servicing - ....ANSWER...FALSE
3. Disposable Refrigerant Tanks under
_______________ must be evacuated before being
scrapped - ....ANSWER...20 POUNDS
4. Supplies of CFC refrigerant for equipment
servicing can ONLY come from which of the
following: - ....ANSWER...RECOVERY,
RECYCLING, RECLAMATION
5. External Recovery Tanks must be evacuated to
_______ of mercury before being put in service -
....ANSWER...27 INCHES
,6. Which of the following refrigerants has high
ozone-depletion potential?: - ....ANSWER...CFCs
7. CFCs manufacturing was discontinued as of
______________________ - ....ANSWER...JANUARY
1ST 1996
8. Which element in refrigerant makes them
chemically less stable once they enter the
atmosphere? - ....ANSWER...HYDROGEN
14. ______________ of stratospheric chlorine comes
from ozone-depleting substances - ....ANSWER...82%
9. Stratosphere layer consists of about ____________
of the available Ozone: - ....ANSWER...90%
10. ________________________________ CFC are
highly reactive in ______________________ of
atmosphere - ....ANSWER...lower levels
11. HFC-134a is the refrigerant that replaced
_____________ in automotive air conditioning systems
- ....ANSWER...R-12
12.R-152 is a chemical compound of which of the
following: - ....ANSWER...HYDROGEN AND
FLUORINE
, 15. Which of the following has the Ozone Depletion
Potential (ODP) value of 1 - ....ANSWER...CFC-11
16. T/F CFC refrigerants are chemically highly
unstable - ....ANSWER...FALSE
17. _________ has recently been approved for use in
automobile applications as an alternative to R-134a -
....ANSWER...R152A
18. The Global Warming Potential is reported relative
to ______________________ - ....ANSWER...carbon
dioxide