EPA 608 COMPREHENSIVE EXAM SCRIPT COMPLETE QUESTIONS VERIFIED SOLUTIONS
Question:
The molecule found in CFCs and HCFCs that depletes O-Zone is: A) Fluorine B) Chlorine C)
Hydrogen D) Carbon.
Answer:
B) Chlorine
Question:
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the
proper disposal method for; A) disposable cylinders B) recovery cylinders C) one pound cans D)
accumulator cylinders.
Answer:
A) disposable cylinders
Question:
The condenser __________________________. A) Changes a high-pressure vapor to a
high-pressure liquid. B) Changes a low pressure liquid to a low pressure vapor. C) changes a
low-pressure vapor to a low-pressure liquid. D) changes a high-pressure liquid to a low-pressure
liquid.
Answer:
A) Changes a high-pressure vapor to a high-pressure liquid.
Question:
An ozone molecule contains; A) Four oxygen atoms B) Three oxygen atoms C) Two oxygen atoms
D) One oxygen atom.
, Answer:
B) Three oxygen atoms.
Question:
The low-side test-pressure data-plate valve should be used by a technician to determine a safe
pressure for: A) refrigerant charging B) leak testing. C) recovering refrigerant D) retrofitting a
system.
Answer:
B) leak testing.
Question:
HCFCs contain; A) hydrogen, fluorine, and olefin B) hydrogen, chlorine, fluorine, and carbon C)
chlorine, fluorine, and carbon D) hydrogen, fluorine, and carbon.
Answer:
B) hydrogen, chlorine, fluorine, and carbon.
Question:
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? A) 1
year B) 3 years C) 5 years D) 7 years.
Answer:
C) 5 years
Question:
The compressor __________________________. A) Changes a high-pressure vapor to a
high-pressure liquid. B) Changes a high-pressure liquid to a low pressure liquid. C) changes a
low-pressure vapor to a high-pressure vapor. D) Changes a low-pressure liquid to a low-pressure
vapor.
Answer:
C) changes a low-pressure vapor to a high-pressure vapor.
Question:
The molecule found in CFCs and HCFCs that depletes O-Zone is: A) Fluorine B) Chlorine C)
Hydrogen D) Carbon.
Answer:
B) Chlorine
Question:
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the
proper disposal method for; A) disposable cylinders B) recovery cylinders C) one pound cans D)
accumulator cylinders.
Answer:
A) disposable cylinders
Question:
The condenser __________________________. A) Changes a high-pressure vapor to a
high-pressure liquid. B) Changes a low pressure liquid to a low pressure vapor. C) changes a
low-pressure vapor to a low-pressure liquid. D) changes a high-pressure liquid to a low-pressure
liquid.
Answer:
A) Changes a high-pressure vapor to a high-pressure liquid.
Question:
An ozone molecule contains; A) Four oxygen atoms B) Three oxygen atoms C) Two oxygen atoms
D) One oxygen atom.
, Answer:
B) Three oxygen atoms.
Question:
The low-side test-pressure data-plate valve should be used by a technician to determine a safe
pressure for: A) refrigerant charging B) leak testing. C) recovering refrigerant D) retrofitting a
system.
Answer:
B) leak testing.
Question:
HCFCs contain; A) hydrogen, fluorine, and olefin B) hydrogen, chlorine, fluorine, and carbon C)
chlorine, fluorine, and carbon D) hydrogen, fluorine, and carbon.
Answer:
B) hydrogen, chlorine, fluorine, and carbon.
Question:
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? A) 1
year B) 3 years C) 5 years D) 7 years.
Answer:
C) 5 years
Question:
The compressor __________________________. A) Changes a high-pressure vapor to a
high-pressure liquid. B) Changes a high-pressure liquid to a low pressure liquid. C) changes a
low-pressure vapor to a high-pressure vapor. D) Changes a low-pressure liquid to a low-pressure
vapor.
Answer:
C) changes a low-pressure vapor to a high-pressure vapor.
