CFESA REFRIGERATION CERTIFICATION 7 2026
ACTUAL EXAM PAPER QUESTIONS WITH
SOLUTIONS GRADED A+
◉ 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 .
◉ 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
◉ 17 . An automatic expansion valve does not :
Answer: C. react well in situations of heavy loads .
ACTUAL EXAM PAPER QUESTIONS WITH
SOLUTIONS GRADED A+
◉ 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 .
◉ 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
◉ 17 . An automatic expansion valve does not :
Answer: C. react well in situations of heavy loads .
