EPA 608 - core Study Guide Rated A+
Which of the following refrigerant has a GWP of "1"?
A) R-22
B) R-1233zd
C) R-410A
D) R-134a
The molecule found in CFCs and HCFCs that depletes O-Zone is:
A) Fluorine
B) Chlorine
C) Hydrogen
D) Carbon
Recover any remaining refrigerant and then ren...
1). Which of the following refrigerant has a gwp of "1"?
a) r-22
b) r-1233zd
c) r-410a
d) r-134a
Ans: B) R-1233zd
2). The molecule found in cfcs and hcfcs that depletes o-zone is:
a) fluorine
b) chlorine
c) hydrogen
d) carbon
Ans: B) Chlorine
3). 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
Ans: A) disposable cylinders
4). 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.
Ans: A) Changes a high-pressure vapor to a high-pressure liquid.
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, 5). An ozone molecule contains;
a) four oxygen atoms
b) three oxygen atoms
c) two oxygen atoms
d) one oxygen atom
Ans: B) Three oxygen atoms.
6). 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
Ans: B) leak testing.
7). Hcfcs contain;
a) hydrogen, fluorine, and olefin
b) hydrogen, chlorine, fluorine, and carbon
c) chlorine, fluorine, and carbon
d) hydrogen, fluorine, and carbon
Ans: B) hydrogen, chlorine, fluorine, and carbon.
8). Reusable refrigerant containers under high-pressure must be hydrostatically tested how
often?
a) 1 year
b) 3 years
c) 5 years
d) 7 years
Ans: C) 5 years
9). The compressor __________________________.
a) changes a high-pressure vapor to a high-pressure liquid.
b) changes a high-pressure liquid to a low pressure liquid.
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