1|Page
CFESA Refrigeration Certification Test Exam Preparation
Exam Actual Complete Real Exam Questions and Answers
Practice Questions With Solutions and Rationales Newest
2026-2027 | Already Graded A+
1. The function of the compressor is : - ANSWER-B. to lower the pressure in the
evaporator so that the refrigerant temperature is lowered below the temperature
of the air in the box .
2 . Forced air evaporator coils are commonly used because : - ANSWER-A.
they absorb more heat in less time .
3 . Evaporator A operates with a 5 ° TD and evaporator B operates with a 15⁰
TD . - ANSWER-D. Box A operates with higher humidity than box B
4 Whenever you re soldering refrigerant lines : - ANSWER-D. B & C
5 . R404A must be charged into a system : - ANSWER-A. In a liquid state
6 . If an evaporator fan motor needs to be replaced it must be replaced with : -
ANSWER-C. Any motor with the exact HP , speed , voltage , mounting and
rotation
7 . The fan blade on an evaporator or condenser must be positioned in the
housing or shroud so that : - ANSWER-B. The blade is mounted mid way into
the evaporator housing opening or fan shroud opening on a condenser .
, 2|Page
8. Which of the following refrigerants is an interim choice for a replacement for
R - 12 in a system that had a leak in the condenser and lost all of its refrigerant
? - ANSWER-C. R - 409A
9 . Which refrigerant is an interim refrigerant choice for a R502 system that had
a major leak in the evaporator - ANSWER-d . R408A
10 . When evacuating a refrigeration system what tool is needed to ensure a good
evacuation and to help inform you if there is any moisture or leaks in the system : -
ANSWER-B. Micron gauge
11 . Which refrigerant would you convert a walk in freezer to if replacing the
condensing unit on an R502 system : - ANSWER-B. R404A
12 . Which phrase best describes the proper use for a refrigerated box using a
cap tube system ? - ANSWER-A. Storage freezer
13 . Which is the best example of the definition of a storage box ? - ANSWER-
A. A freezer on which the door is opened 8 times a day
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 : - ANSWER-C. A thermal expansion
valve
15 . A cap tube is ineffective on most commercial refrigeration systems because
: - ANSWER-D. it cannot respond to the refrigerant needs under heavy loads
16 . The sensor bulb on a TEV must be : - ANSWER-C. mounted tight to a
clean surface on the suction line close to the outlet of the coil
CFESA Refrigeration Certification Test Exam Preparation
Exam Actual Complete Real Exam Questions and Answers
Practice Questions With Solutions and Rationales Newest
2026-2027 | Already Graded A+
1. The function of the compressor is : - ANSWER-B. to lower the pressure in the
evaporator so that the refrigerant temperature is lowered below the temperature
of the air in the box .
2 . Forced air evaporator coils are commonly used because : - ANSWER-A.
they absorb more heat in less time .
3 . Evaporator A operates with a 5 ° TD and evaporator B operates with a 15⁰
TD . - ANSWER-D. Box A operates with higher humidity than box B
4 Whenever you re soldering refrigerant lines : - ANSWER-D. B & C
5 . R404A must be charged into a system : - ANSWER-A. In a liquid state
6 . If an evaporator fan motor needs to be replaced it must be replaced with : -
ANSWER-C. Any motor with the exact HP , speed , voltage , mounting and
rotation
7 . The fan blade on an evaporator or condenser must be positioned in the
housing or shroud so that : - ANSWER-B. The blade is mounted mid way into
the evaporator housing opening or fan shroud opening on a condenser .
, 2|Page
8. Which of the following refrigerants is an interim choice for a replacement for
R - 12 in a system that had a leak in the condenser and lost all of its refrigerant
? - ANSWER-C. R - 409A
9 . Which refrigerant is an interim refrigerant choice for a R502 system that had
a major leak in the evaporator - ANSWER-d . R408A
10 . When evacuating a refrigeration system what tool is needed to ensure a good
evacuation and to help inform you if there is any moisture or leaks in the system : -
ANSWER-B. Micron gauge
11 . Which refrigerant would you convert a walk in freezer to if replacing the
condensing unit on an R502 system : - ANSWER-B. R404A
12 . Which phrase best describes the proper use for a refrigerated box using a
cap tube system ? - ANSWER-A. Storage freezer
13 . Which is the best example of the definition of a storage box ? - ANSWER-
A. A freezer on which the door is opened 8 times a day
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 : - ANSWER-C. A thermal expansion
valve
15 . A cap tube is ineffective on most commercial refrigeration systems because
: - ANSWER-D. it cannot respond to the refrigerant needs under heavy loads
16 . The sensor bulb on a TEV must be : - ANSWER-C. mounted tight to a
clean surface on the suction line close to the outlet of the coil
