SKILLCAT EPA 608 EXAM TEST BANK
QUESTIONS AND VERIFIED ANSWERS A+
GRADE 100% PASS 2026 UPDATED LATEST
If large vacuum pump is used, vacuum in the system drops very fast
causing the evaporating water to cool and freeze rapidly. This results in
removing water from the system more difficult.
,Vacuum pumps are rated by their volumetric capacity, which is typically
expressed in CFM. T or F - ✔✔✔ Correct Answer > True
Medium-pressure appliance can use which of the following refrigerants:
R-12
R-22
R-123
R-11 - ✔✔✔ Correct Answer > R-12
,Saturated refrigerants have a specific pressure rating at a specific
temperature. If both these parameters are measured, correct
refrigerant can be determined by looking at pressure-temperature
chart
References to the pressure/temperature chart for determining the type
of refrigerant are only valid if the _____ is known: - ✔✔✔ Correct
Answer > Temperature
Motor Vehicle Air Conditioning (MVAC) service technicians are governed
under EPA _____ section: - ✔✔✔ Correct Answer > 609
Ozone is a unstable molecule at stratosphere: T or F? - ✔✔✔ Correct
Answer > True
Ozone at stratosphere is an unstable molecule made up of three oxygen
atoms. The instability of the molecule allows the free oxygen atoms to
react with hydrogen, nitrogen, chlorine and bromine.
Presence of which of the following elements will reduce the stability of
the ozone depletion organic refrigerant compounds:
Chlorine
Bromine
Hydrogen
, All of the Above - ✔✔✔ Correct Answer > Hydrogen
Chlorine and Bromine are considered as the elements responsible for
the depletion of ozone layer at stratosphere. CFC compound are highly
stable at lower atmosphere and have higher lifetime. Therefore they
reach stratosphere and depletes the ozone layer. Presence of Hydrogen
element in organic refrigerants such as HCFCs and HFCs results in
decomposition at lower atmosphere. Therefore these elements have
lower lifetime and cannot pose threat to ozone depletion.
If the label identifying the refrigerant is missing, then which method is
used to identify the type of refrigerant? - ✔✔✔ Correct Answer >
Pressure-Temperature method
Sale of which of the following refrigerants are not limited to technicians:
HCFC
HFC
CFC
All the refrigerants are restricted - ✔✔✔ Correct Answer > HFC
All refrigerant recovery equipment should be checked for _____ on a
daily basis: - ✔✔✔ Correct Answer > Both Oil level and Refrigerant
leaks
QUESTIONS AND VERIFIED ANSWERS A+
GRADE 100% PASS 2026 UPDATED LATEST
If large vacuum pump is used, vacuum in the system drops very fast
causing the evaporating water to cool and freeze rapidly. This results in
removing water from the system more difficult.
,Vacuum pumps are rated by their volumetric capacity, which is typically
expressed in CFM. T or F - ✔✔✔ Correct Answer > True
Medium-pressure appliance can use which of the following refrigerants:
R-12
R-22
R-123
R-11 - ✔✔✔ Correct Answer > R-12
,Saturated refrigerants have a specific pressure rating at a specific
temperature. If both these parameters are measured, correct
refrigerant can be determined by looking at pressure-temperature
chart
References to the pressure/temperature chart for determining the type
of refrigerant are only valid if the _____ is known: - ✔✔✔ Correct
Answer > Temperature
Motor Vehicle Air Conditioning (MVAC) service technicians are governed
under EPA _____ section: - ✔✔✔ Correct Answer > 609
Ozone is a unstable molecule at stratosphere: T or F? - ✔✔✔ Correct
Answer > True
Ozone at stratosphere is an unstable molecule made up of three oxygen
atoms. The instability of the molecule allows the free oxygen atoms to
react with hydrogen, nitrogen, chlorine and bromine.
Presence of which of the following elements will reduce the stability of
the ozone depletion organic refrigerant compounds:
Chlorine
Bromine
Hydrogen
, All of the Above - ✔✔✔ Correct Answer > Hydrogen
Chlorine and Bromine are considered as the elements responsible for
the depletion of ozone layer at stratosphere. CFC compound are highly
stable at lower atmosphere and have higher lifetime. Therefore they
reach stratosphere and depletes the ozone layer. Presence of Hydrogen
element in organic refrigerants such as HCFCs and HFCs results in
decomposition at lower atmosphere. Therefore these elements have
lower lifetime and cannot pose threat to ozone depletion.
If the label identifying the refrigerant is missing, then which method is
used to identify the type of refrigerant? - ✔✔✔ Correct Answer >
Pressure-Temperature method
Sale of which of the following refrigerants are not limited to technicians:
HCFC
HFC
CFC
All the refrigerants are restricted - ✔✔✔ Correct Answer > HFC
All refrigerant recovery equipment should be checked for _____ on a
daily basis: - ✔✔✔ Correct Answer > Both Oil level and Refrigerant
leaks
