EPA 608 UPDATED ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS
Question 1.
Low loss fittings are required for servicing systems containing ODS in order to comply with the
Venting Prohibition.
Select one:
True
False
ANSWER
True
Question 2.
Which of the following states has the highest temperature? (Assume constant pressure)
liquid
solid
vapor
water
ANSWER
Vapor
Question 3.
Non-condensables would _____ the pressure on the high side of an active recovery device.
Answer
Increase
Decrease
Have no effect on
ANSWER
Increase
,Question 4.
An ideal oil is readily miscible with the refrigerant in the system.
Select one:
True
False
ANSWER
True
Question 5.
Which of the following are natural refrigerants? (Select all that apply)
Answer
A. R-600a
В. НС-600а
C. R-134a
D. R-22
ANSWER
A and B
Question 6.
What molecule destroys the ozone layer?
ANSWER
Chlorine
Question 7.
If a household freezer contains R-22, we can retrofit it to operate on:
Answer
R-12
R-600a
R-410a
None of these
ANSWER
R-410a
,Question 8.
Which of the following refrigerants would be used in a low-pressure appliance?
Answer
R-22
R-123
R-410A
R-407A
ANSWER
R-123
Question 9.
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.
Select one:
True
False
ANSWER
False
Question 10.
R-12 has a GWP in which of the following ranges? Answer
A. 1-500
В. 500-1000
С. 1000-10,000
D. 10,000-50,000
ANSWER
D
Question 11.
What is the least possible ODP for a refrigerant? Answer
A. 0
B. 1
C. 100
D. None
ANSWER
A
, Question 12.
An ideal oil is best at handling only high temperatures and high pressures.
Select one:
True
False
ANSWER
False
Question 13.
If a refrigerant has a drop-in replacement, then no retrofit is needed.
Select one:
True
False
ANSWER
True
Question 14.
The refrigerant absorbs heat from your indoor air in order to: (Select all that apply)
A. Make your house hotter
B. Change state from liquid to vapor
C. Make your house cooler
D. None of the above
ANSWER
B. and C.
Question 15.
If we find refrigerant that is mixed, what should we do?
Answer
Destroy it
Send it to the EPA to be reclaimed
Send it to SkillCat to be reclaimed
Send it to a certified reclaiming facility to be reclaimed
ANSWER
Send it to a certified reclaiming facility to be reclaimed
QUESTIONS AND CORRECT ANSWERS
Question 1.
Low loss fittings are required for servicing systems containing ODS in order to comply with the
Venting Prohibition.
Select one:
True
False
ANSWER
True
Question 2.
Which of the following states has the highest temperature? (Assume constant pressure)
liquid
solid
vapor
water
ANSWER
Vapor
Question 3.
Non-condensables would _____ the pressure on the high side of an active recovery device.
Answer
Increase
Decrease
Have no effect on
ANSWER
Increase
,Question 4.
An ideal oil is readily miscible with the refrigerant in the system.
Select one:
True
False
ANSWER
True
Question 5.
Which of the following are natural refrigerants? (Select all that apply)
Answer
A. R-600a
В. НС-600а
C. R-134a
D. R-22
ANSWER
A and B
Question 6.
What molecule destroys the ozone layer?
ANSWER
Chlorine
Question 7.
If a household freezer contains R-22, we can retrofit it to operate on:
Answer
R-12
R-600a
R-410a
None of these
ANSWER
R-410a
,Question 8.
Which of the following refrigerants would be used in a low-pressure appliance?
Answer
R-22
R-123
R-410A
R-407A
ANSWER
R-123
Question 9.
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.
Select one:
True
False
ANSWER
False
Question 10.
R-12 has a GWP in which of the following ranges? Answer
A. 1-500
В. 500-1000
С. 1000-10,000
D. 10,000-50,000
ANSWER
D
Question 11.
What is the least possible ODP for a refrigerant? Answer
A. 0
B. 1
C. 100
D. None
ANSWER
A
, Question 12.
An ideal oil is best at handling only high temperatures and high pressures.
Select one:
True
False
ANSWER
False
Question 13.
If a refrigerant has a drop-in replacement, then no retrofit is needed.
Select one:
True
False
ANSWER
True
Question 14.
The refrigerant absorbs heat from your indoor air in order to: (Select all that apply)
A. Make your house hotter
B. Change state from liquid to vapor
C. Make your house cooler
D. None of the above
ANSWER
B. and C.
Question 15.
If we find refrigerant that is mixed, what should we do?
Answer
Destroy it
Send it to the EPA to be reclaimed
Send it to SkillCat to be reclaimed
Send it to a certified reclaiming facility to be reclaimed
ANSWER
Send it to a certified reclaiming facility to be reclaimed
