CFESA Refrigeration Certification Test Exam Questions and
Answers |Fall 2026/2027 Update | 100% Correct Latest
(Graded A+)
Question 1
67 . R134A :
Correct Answer
A. has less heat carrying capacity than R12 at lower temperatures .
B. can use the same expansion valve as R12
C. must use Alkylbenzene oil
Question 2
13 . Which is the best example of the definition of a storage box ?
Correct Answer
A. A freezer on which the door is opened 8 times a day
Page 1 of 34
,Question 3
85 . If there is grease build up on the condenser fan motor and blade it must be cleaned off because
Correct Answer
A. it affects the volume of air flow with drastically affects the capacity of the condenser
B. the grease build up can throw the fan off balance
C. the motor will run hot
Question 4
86 . What determines the size of metering device needed for a refrigeration system ?
Correct Answer
the capacity of the compressor in Btu at the evaporator operating temperature
Question 5
14 . In order to maintain proper temperature under the various loads , a cooler or freezer located on a front prep line must
be equipped with :
Correct Answer
C. A thermal expansion valve
Question 6
52 . You are checking a start capacitor with your ohmmeter . The meter reads infinity ohms You should
Correct Answer
replace the start capacitor and start relay
Page 2 of 34
,Question 7
62 . When the condensing temperature at the compressor head reaches 350 ° the compressor is sure to fail because :
Correct Answer
the oil turns to carbon deposits
Question 8
118 . A sight glass is of no value in a cap tube system and should never be installed in this type of system .
Correct Answer
True
Question 9
9 . Which refrigerant is an interim refrigerant choice for a R502 system that had a major leak in the evaporator
Correct Answer
d . R408A
Question 10
65 When converting a system from R502 to R404A you :
Correct Answer
can use the same R502 TEV
Page 3 of 34
, Question 11
79 . The sensor bulb on a TEV must be installed on the suction line at :
Correct Answer
on the top of the line on lines smaller than 7/8 "
Question 12
107 . A pump down solenoid valve is located in the :
Correct Answer
Liquid line
Question 13
92 . To check the discharge valves on a compressor :
Correct Answer
D. front seat the suction service valve and pump the compressor into a vacuum and shut off the compressor . The suction
pressure should remain the same .
Question 14
37 . The oil level in the sight glass on a semi hermetic compressor should be to what level with the compressor running ?
Correct Answer
½ full
Page 4 of 34
Answers |Fall 2026/2027 Update | 100% Correct Latest
(Graded A+)
Question 1
67 . R134A :
Correct Answer
A. has less heat carrying capacity than R12 at lower temperatures .
B. can use the same expansion valve as R12
C. must use Alkylbenzene oil
Question 2
13 . Which is the best example of the definition of a storage box ?
Correct Answer
A. A freezer on which the door is opened 8 times a day
Page 1 of 34
,Question 3
85 . If there is grease build up on the condenser fan motor and blade it must be cleaned off because
Correct Answer
A. it affects the volume of air flow with drastically affects the capacity of the condenser
B. the grease build up can throw the fan off balance
C. the motor will run hot
Question 4
86 . What determines the size of metering device needed for a refrigeration system ?
Correct Answer
the capacity of the compressor in Btu at the evaporator operating temperature
Question 5
14 . In order to maintain proper temperature under the various loads , a cooler or freezer located on a front prep line must
be equipped with :
Correct Answer
C. A thermal expansion valve
Question 6
52 . You are checking a start capacitor with your ohmmeter . The meter reads infinity ohms You should
Correct Answer
replace the start capacitor and start relay
Page 2 of 34
,Question 7
62 . When the condensing temperature at the compressor head reaches 350 ° the compressor is sure to fail because :
Correct Answer
the oil turns to carbon deposits
Question 8
118 . A sight glass is of no value in a cap tube system and should never be installed in this type of system .
Correct Answer
True
Question 9
9 . Which refrigerant is an interim refrigerant choice for a R502 system that had a major leak in the evaporator
Correct Answer
d . R408A
Question 10
65 When converting a system from R502 to R404A you :
Correct Answer
can use the same R502 TEV
Page 3 of 34
, Question 11
79 . The sensor bulb on a TEV must be installed on the suction line at :
Correct Answer
on the top of the line on lines smaller than 7/8 "
Question 12
107 . A pump down solenoid valve is located in the :
Correct Answer
Liquid line
Question 13
92 . To check the discharge valves on a compressor :
Correct Answer
D. front seat the suction service valve and pump the compressor into a vacuum and shut off the compressor . The suction
pressure should remain the same .
Question 14
37 . The oil level in the sight glass on a semi hermetic compressor should be to what level with the compressor running ?
Correct Answer
½ full
Page 4 of 34
