EPA 608 Type II Sample Test
Questions & Answers
1.Before charging a new system with refrigerant, what should be done
Answer:?: Pres- surize with nitrogen (classified as an inert gas) and leak
2.Which refrigerant can be used for leak detection as a trace gas and
pres- surized
with nitrogen
Answer:?: R-22
3.What tools can you use to find general area of leaks and pinpoint leaks?
a. Soap bubbles.
b. Look for oil residue
c. Electronic or ultrasonic leak detector will provide the general area
of the leak
d. Refrigerant dye
Answer: c. Electronic or ultrasonic leak detector will provide the general
area of
the leak
4.Traces of oil around a sight glass inlet fitting of a refrigeration system
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,might be
the indication of:
a. A leak
b. Excessive oil in the system
c. An overcharge
d. A restriction at the TXV
Answer: a. A leak
5.Describe ways you can visually look for leaks.
a. Using soap bubbles
b. Looking for traces of oil
c. Excessive superheat, caused by low refrigerant charge
d. All the above
Answer: d. All the above
6.Type II classification, as identified by EPA, applies to what equipment?
a. Small appliances with five (5) pounds of refrigerant or less
b. Refrigerators, freezers, and vending machine appliances
c. Low pressure appliances
d. Split air conditioning equipment with five (5) pounds of refrigerant
or more
Answer: d. Split air conditioning equipment with five (5) pounds of
refrigerant or more
7.What are the leak repair requirements for comfort cooling appliances
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, and commercial Appliances containing 50 lbs. or more of refrigerant?
a. Must be repaired if leak rate exceeds 15% in comfort cooling appliances.
b. Must be repaired if leak rate exceeds 35% in all commercial and
industrial process refrigeration\
c. a and b
d. None of the above
Answer: c. a and b
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Questions & Answers
1.Before charging a new system with refrigerant, what should be done
Answer:?: Pres- surize with nitrogen (classified as an inert gas) and leak
2.Which refrigerant can be used for leak detection as a trace gas and
pres- surized
with nitrogen
Answer:?: R-22
3.What tools can you use to find general area of leaks and pinpoint leaks?
a. Soap bubbles.
b. Look for oil residue
c. Electronic or ultrasonic leak detector will provide the general area
of the leak
d. Refrigerant dye
Answer: c. Electronic or ultrasonic leak detector will provide the general
area of
the leak
4.Traces of oil around a sight glass inlet fitting of a refrigeration system
1/
18
,might be
the indication of:
a. A leak
b. Excessive oil in the system
c. An overcharge
d. A restriction at the TXV
Answer: a. A leak
5.Describe ways you can visually look for leaks.
a. Using soap bubbles
b. Looking for traces of oil
c. Excessive superheat, caused by low refrigerant charge
d. All the above
Answer: d. All the above
6.Type II classification, as identified by EPA, applies to what equipment?
a. Small appliances with five (5) pounds of refrigerant or less
b. Refrigerators, freezers, and vending machine appliances
c. Low pressure appliances
d. Split air conditioning equipment with five (5) pounds of refrigerant
or more
Answer: d. Split air conditioning equipment with five (5) pounds of
refrigerant or more
7.What are the leak repair requirements for comfort cooling appliances
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18
, and commercial Appliances containing 50 lbs. or more of refrigerant?
a. Must be repaired if leak rate exceeds 15% in comfort cooling appliances.
b. Must be repaired if leak rate exceeds 35% in all commercial and
industrial process refrigeration\
c. a and b
d. None of the above
Answer: c. a and b
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18
