CFESA REFRIGERATION CERTIFICATION
TEST ACTUAL QUESTIONS ACCURATE
ANSWERS TEST BANK FULL SOLUTION
PACKAGE
⩥ 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 .
TEST ACTUAL QUESTIONS ACCURATE
ANSWERS TEST BANK FULL SOLUTION
PACKAGE
⩥ 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 .
