EPA CORE EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS WELL VERIFIED .GRADED
A+
Which refrigerant contains a CFC? - ANSWER -R-500
Refrigerant vapors or mists in high concentrations should not be inhaled
since; - ANSWER -they may cause heart irregularities or
unconsciousness.
Recovery equipment that relies upon the compressor in the appliance
and/or the pressure of the refrigerant in the appliance would be
considered; - ANSWER -system-dependent.
, Whenever working with any solvents, chemicals and refrigerants, the
technician should review; - ANSWER -material safety data sheets.
Which of the following is/are violation(s) of the Clean Air Act?
A. Falsifying or failing to keep required records.
B. Failing to reach required evacuation levels before opening or
disposing of appliances.
C. Knowingly releasing CFC or HCFC refrigerants or their substitutes
while repairing appliances. - ANSWER -D. All of the above.
All devices used for refrigerant recovery must; - ANSWER -meet EPA
standards.
The state of the refrigerant leaving the condenser of a refrigeration
system is; - ANSWER -high pressure liquid.
Hydro fluorocarbon (HFC) refrigerants contain; - ANSWER -hydrogen,
fluorine & carbon.
Ozone in the atmosphere above the earth consists of; - ANSWER -
molecules containing 3 oxygen atoms.
DETAILED ANSWERS WELL VERIFIED .GRADED
A+
Which refrigerant contains a CFC? - ANSWER -R-500
Refrigerant vapors or mists in high concentrations should not be inhaled
since; - ANSWER -they may cause heart irregularities or
unconsciousness.
Recovery equipment that relies upon the compressor in the appliance
and/or the pressure of the refrigerant in the appliance would be
considered; - ANSWER -system-dependent.
, Whenever working with any solvents, chemicals and refrigerants, the
technician should review; - ANSWER -material safety data sheets.
Which of the following is/are violation(s) of the Clean Air Act?
A. Falsifying or failing to keep required records.
B. Failing to reach required evacuation levels before opening or
disposing of appliances.
C. Knowingly releasing CFC or HCFC refrigerants or their substitutes
while repairing appliances. - ANSWER -D. All of the above.
All devices used for refrigerant recovery must; - ANSWER -meet EPA
standards.
The state of the refrigerant leaving the condenser of a refrigeration
system is; - ANSWER -high pressure liquid.
Hydro fluorocarbon (HFC) refrigerants contain; - ANSWER -hydrogen,
fluorine & carbon.
Ozone in the atmosphere above the earth consists of; - ANSWER -
molecules containing 3 oxygen atoms.
