SkillCat EPA 608 Exam Questions and
Verified Answers Latest
Question 1
What is the purpose of Section 608?
Correct Answer
To protect the ozone and regulate chemicals that deplete ozone
Question 2
R-410a is an A1 refrigerant. It is non-toxic and has low flammability, making it one of
the safest refrigerants to use
Correct Answer
True
Question 3
What is the least possible ODP for a refrigerant?
Correct Answer
0
Question 4
What should we do to recover refrigerant from a system with a compressor that is not
working?
Correct Answer
Tapping the compressor with a rubber mallet so we don't damage it, Heating it with
a heating blanket
Page 1 of 206
,Question 5
Low loss fittings are required for servicing appliances containing CFCs, HCFCs, and
HFCs because of the Venting Prohibition
Correct Answer
True
Question 6
Equipment has to be certified to EPA standards in order to recover which of the
following refrigerants?
Correct Answer
CFCs, HCFCs & HFCs
Question 7
A near azeotropic blend will contain
Correct Answer
Two saturation pressure values that are close
Question 8
What precaution should be taken before recovering refrigerant from a chiller
suspected of having tube leaks
Correct Answer
Drain the water sides of the evaporator and condenser
Question 9
Which of the following are considered de minimis releases?
Correct Answer
Catastrophic equipment failure, accidental release with timely repair of appliances,
releases when connecting or disconnecting hoses with low loss fittings
Page 2 of 206
,Question 10
In the condenser, the refrigerant changes state.
Correct Answer
True
Question 11
We generally want to leak test access fittings after a service to make sure it does not
have leaks for the next service. This is to save us time from leak testing the access
fitting the next time around
Correct Answer
False
Question 12
What is the safety-relief pressure of the rupture disc?
Correct Answer
15 psig
Question 13
Which of the following states has the highest temperature?
Correct Answer
Vapor
Question 14
Which of the following refrigerants does the Venting Prohibition cover?
Correct Answer
CFCs, HCFCs, HFCs
Page 3 of 206
, Question 15
What is the state of the refrigerant when it enters the condenser?
Correct Answer
high pressure vapor
Question 16
Which of the following values do we check if we suspect that non-condensables are
present?
Correct Answer
Refrigerant pressure
Question 17
How can we charge an 80-pound R407C system with air-cooled components?
Correct Answer
Liquid charge through the liquid-line service valve
Question 18
If the oil is contaminated, what do we have to do?
Correct Answer
Flush the system
Question 19
What is the Montreal Protocol?
Correct Answer
An international agreement between 197 countries
Question 20
Which of the following components are only found in Type 3 appliances
Correct Answer
purge unit
Page 4 of 206
Verified Answers Latest
Question 1
What is the purpose of Section 608?
Correct Answer
To protect the ozone and regulate chemicals that deplete ozone
Question 2
R-410a is an A1 refrigerant. It is non-toxic and has low flammability, making it one of
the safest refrigerants to use
Correct Answer
True
Question 3
What is the least possible ODP for a refrigerant?
Correct Answer
0
Question 4
What should we do to recover refrigerant from a system with a compressor that is not
working?
Correct Answer
Tapping the compressor with a rubber mallet so we don't damage it, Heating it with
a heating blanket
Page 1 of 206
,Question 5
Low loss fittings are required for servicing appliances containing CFCs, HCFCs, and
HFCs because of the Venting Prohibition
Correct Answer
True
Question 6
Equipment has to be certified to EPA standards in order to recover which of the
following refrigerants?
Correct Answer
CFCs, HCFCs & HFCs
Question 7
A near azeotropic blend will contain
Correct Answer
Two saturation pressure values that are close
Question 8
What precaution should be taken before recovering refrigerant from a chiller
suspected of having tube leaks
Correct Answer
Drain the water sides of the evaporator and condenser
Question 9
Which of the following are considered de minimis releases?
Correct Answer
Catastrophic equipment failure, accidental release with timely repair of appliances,
releases when connecting or disconnecting hoses with low loss fittings
Page 2 of 206
,Question 10
In the condenser, the refrigerant changes state.
Correct Answer
True
Question 11
We generally want to leak test access fittings after a service to make sure it does not
have leaks for the next service. This is to save us time from leak testing the access
fitting the next time around
Correct Answer
False
Question 12
What is the safety-relief pressure of the rupture disc?
Correct Answer
15 psig
Question 13
Which of the following states has the highest temperature?
Correct Answer
Vapor
Question 14
Which of the following refrigerants does the Venting Prohibition cover?
Correct Answer
CFCs, HCFCs, HFCs
Page 3 of 206
, Question 15
What is the state of the refrigerant when it enters the condenser?
Correct Answer
high pressure vapor
Question 16
Which of the following values do we check if we suspect that non-condensables are
present?
Correct Answer
Refrigerant pressure
Question 17
How can we charge an 80-pound R407C system with air-cooled components?
Correct Answer
Liquid charge through the liquid-line service valve
Question 18
If the oil is contaminated, what do we have to do?
Correct Answer
Flush the system
Question 19
What is the Montreal Protocol?
Correct Answer
An international agreement between 197 countries
Question 20
Which of the following components are only found in Type 3 appliances
Correct Answer
purge unit
Page 4 of 206
