CFC CORE EXAM QUESTIONS EXAM QUESTIONS AND
ANSWERS
__are fluorocarbon refrigerants that cause no harm to stratospheric ozone.
A.CFCS
B.HCFCS
C.HFCs
D.HalonsTM - CORRECT ANSWER✅✅C
2.The Clean Air Act_.
A.calls for the phaseout of PFC refrigerant production
B.requires that all leaks be fixed within 30 days
C.requires OSHA to set standards for the recovery of refrigerants prior to appliance disposal
D.prohibits CFC/HCFC venting as of July 1,1992 - CORRECT ANSWER✅✅D
3.Refrigerant__is the type of contamination that is the most difficult for a reclaiming facility to
eliminate.
A.with air
B.with moisture
C.from an acid burnout
D.containing particulate contaminants - CORRECT ANSWER✅✅C
__is a CFC refrigerant.
A.R-134a
B.R-123
C.R-22
D.R-12 - CORRECT ANSWER✅✅D
_is an HCFC refrigerant.
,A.R-11
B.R-22
C.R-114
D.R-717 - CORRECT ANSWER✅✅B
__is an HFC refrigerant.
A.R-134a
B.R-115
C.R-22
D.R-11 - CORRECT ANSWER✅✅A
The strongest evidence that CFCs are in the stratosphere is_.
A.theory only
B.measurements of CFCs in air samples from the lower atmosphere
C.measurements of CFCs in air samples from the stratosphere
D.measurements of other man-made compounds in air samples from the stratosphere - CORRECT
ANSWER✅✅C
Ozone depletion in the stratosphere is a__problem.
A.local
B.regional
C.national
D.global - CORRECT ANSWER✅✅D
The ozone layer protects the planet's surface from_.
A.losing oxygen
B.chlorine monoxide
C.UV radiation
D.hydrogen chloride - CORRECT ANSWER✅✅C
, One of the most serious results of damage to the ozone layer is.
A.increased growth of marine plants
B.increased volcanic activity
C.increases in human skin cancer
D.higher natural background radioactivity - CORRECT ANSWER✅✅C
The size(capacity)of a vacuum pump and suction line size determine
A.vacuum polarity
B.evacuation time
C.refrigerant used
D.oil viscosity - CORRECT ANSWER✅✅B
__is the element in refrigerants that causes ozone depletion.
A.Fluorine
B.Chlorine
C.Carbon
D.Hydrogen - CORRECT ANSWER✅✅B
Some state and local governments may establish laws that_.
A.counteract EPA regulations
B.are not as strict as the Clean Air Act and EPA regulations
C.contain stricter regulations than the Clean Air Act and EPA regulations
D.supersede EPA regulations - CORRECT ANSWER✅✅D
Whenever dry nitrogen from a portable cylinder is used in service and installation practice,the
most important safety consideration is that.
A.the regulator has a new set of gauges
ANSWERS
__are fluorocarbon refrigerants that cause no harm to stratospheric ozone.
A.CFCS
B.HCFCS
C.HFCs
D.HalonsTM - CORRECT ANSWER✅✅C
2.The Clean Air Act_.
A.calls for the phaseout of PFC refrigerant production
B.requires that all leaks be fixed within 30 days
C.requires OSHA to set standards for the recovery of refrigerants prior to appliance disposal
D.prohibits CFC/HCFC venting as of July 1,1992 - CORRECT ANSWER✅✅D
3.Refrigerant__is the type of contamination that is the most difficult for a reclaiming facility to
eliminate.
A.with air
B.with moisture
C.from an acid burnout
D.containing particulate contaminants - CORRECT ANSWER✅✅C
__is a CFC refrigerant.
A.R-134a
B.R-123
C.R-22
D.R-12 - CORRECT ANSWER✅✅D
_is an HCFC refrigerant.
,A.R-11
B.R-22
C.R-114
D.R-717 - CORRECT ANSWER✅✅B
__is an HFC refrigerant.
A.R-134a
B.R-115
C.R-22
D.R-11 - CORRECT ANSWER✅✅A
The strongest evidence that CFCs are in the stratosphere is_.
A.theory only
B.measurements of CFCs in air samples from the lower atmosphere
C.measurements of CFCs in air samples from the stratosphere
D.measurements of other man-made compounds in air samples from the stratosphere - CORRECT
ANSWER✅✅C
Ozone depletion in the stratosphere is a__problem.
A.local
B.regional
C.national
D.global - CORRECT ANSWER✅✅D
The ozone layer protects the planet's surface from_.
A.losing oxygen
B.chlorine monoxide
C.UV radiation
D.hydrogen chloride - CORRECT ANSWER✅✅C
, One of the most serious results of damage to the ozone layer is.
A.increased growth of marine plants
B.increased volcanic activity
C.increases in human skin cancer
D.higher natural background radioactivity - CORRECT ANSWER✅✅C
The size(capacity)of a vacuum pump and suction line size determine
A.vacuum polarity
B.evacuation time
C.refrigerant used
D.oil viscosity - CORRECT ANSWER✅✅B
__is the element in refrigerants that causes ozone depletion.
A.Fluorine
B.Chlorine
C.Carbon
D.Hydrogen - CORRECT ANSWER✅✅B
Some state and local governments may establish laws that_.
A.counteract EPA regulations
B.are not as strict as the Clean Air Act and EPA regulations
C.contain stricter regulations than the Clean Air Act and EPA regulations
D.supersede EPA regulations - CORRECT ANSWER✅✅D
Whenever dry nitrogen from a portable cylinder is used in service and installation practice,the
most important safety consideration is that.
A.the regulator has a new set of gauges
