CFESA Refrigeration Certification Test | UPDATED
Questions with 100% Verified Answers
Q1: 1. The function of the compressor is
A: B. to lower the pressure in the evaporator so that
the refrigerant temperature is lowered below the
temperature of the air in the box .
Q2: 2 . Forced air evaporator coils are
A: A. they absorb more heat in less time .
Q3: commonly used because
A:
Q4: 3 . Evaporator A operates with a 5 °
A: D. Box A operates with higher humidity than box
Q5: TD and evaporator B operates with
a 15■ TD .
A: B
Q6: 4 Whenever you re soldering
A: D. B & C
Q7: refrigerant lines
A:
Q8: 5 . R404A must be charged into a
A: A. In a liquid state
Q9: system
A:
Q10: 6 . If an evaporator fan motor
A: C. Any motor with the exact HP , speed , voltage
Q11: needs to be replaced it must be
A: , mounting and rotation
,Q12: replaced with
A:
Q13: 7 . The fan blade on an evaporator
A: B. The blade is mounted mid way into the
Q14: or condenser must be positioned
A: evaporator housing opening or fan shroud
Q15: in the housing or shroud so that
A: opening on a condenser .
Q16: 8. Which of the following
A: C. R - 409A
Q17: refrigerants is an interim choice for
A:
Q18: a replacement for R - 12 in a system
A:
Q19: that had a leak in the condenser
A:
Q20: and lost all of its refrigerant ?
A:
Q21: 9 . Which refrigerant is an interim
A: d . R408A
Q22: refrigerant choice for a R502
A:
Q23: system that had a major leak in the
A:
Q24: evaporator
A:
,Q25: 10 . When evacuating a
A: B. Micron gauge
Q26: refrigeration system what tool is
A:
Q27: needed to ensure a good
A:
Q28: evacuation and to help inform you
A:
Q29: if there is any moisture or leaks in
A:
Q30: the system
A:
Q31: 11 . Which refrigerant would you
A: B. R404A
Q32: convert a walk in freezer to if
A:
Q33: replacing the condensing unit on
A:
Q34: an R502 system
A:
Q35: 12 . Which phrase best describes
A: A. Storage freezer
Q36: the proper use for a refrigerated
A:
Q37: box using a cap tube system ?
A:
, Q38: 13 . Which is the best example of
A: A. A freezer on which the door is opened 8
Q39: the definition of a storage box ?
A: times a day
Q40: 14 . In order to maintain proper
A: C. A thermal expansion valve
Q41: temperature under the various
A:
Q42: loads , a cooler or freezer located
A:
Q43: on a front prep line must be
A:
Q44: equipped with
A:
Q45: 15 . A cap tube is ineffective on
A: D. it cannot respond to the refrigerant needs
Q46: most commercial refrigeration
A: under heavy loads
Q47: systems because
A:
Q48: 16 . The sensor bulb on a TEV must
A: C. mounted tight to a clean surface on the
Q49: be
A: suction line close to the outlet of the coil
Q50: 17 . An automatic expansion valve
A: C. react well in situations of heavy loads .
Questions with 100% Verified Answers
Q1: 1. The function of the compressor is
A: B. to lower the pressure in the evaporator so that
the refrigerant temperature is lowered below the
temperature of the air in the box .
Q2: 2 . Forced air evaporator coils are
A: A. they absorb more heat in less time .
Q3: commonly used because
A:
Q4: 3 . Evaporator A operates with a 5 °
A: D. Box A operates with higher humidity than box
Q5: TD and evaporator B operates with
a 15■ TD .
A: B
Q6: 4 Whenever you re soldering
A: D. B & C
Q7: refrigerant lines
A:
Q8: 5 . R404A must be charged into a
A: A. In a liquid state
Q9: system
A:
Q10: 6 . If an evaporator fan motor
A: C. Any motor with the exact HP , speed , voltage
Q11: needs to be replaced it must be
A: , mounting and rotation
,Q12: replaced with
A:
Q13: 7 . The fan blade on an evaporator
A: B. The blade is mounted mid way into the
Q14: or condenser must be positioned
A: evaporator housing opening or fan shroud
Q15: in the housing or shroud so that
A: opening on a condenser .
Q16: 8. Which of the following
A: C. R - 409A
Q17: refrigerants is an interim choice for
A:
Q18: a replacement for R - 12 in a system
A:
Q19: that had a leak in the condenser
A:
Q20: and lost all of its refrigerant ?
A:
Q21: 9 . Which refrigerant is an interim
A: d . R408A
Q22: refrigerant choice for a R502
A:
Q23: system that had a major leak in the
A:
Q24: evaporator
A:
,Q25: 10 . When evacuating a
A: B. Micron gauge
Q26: refrigeration system what tool is
A:
Q27: needed to ensure a good
A:
Q28: evacuation and to help inform you
A:
Q29: if there is any moisture or leaks in
A:
Q30: the system
A:
Q31: 11 . Which refrigerant would you
A: B. R404A
Q32: convert a walk in freezer to if
A:
Q33: replacing the condensing unit on
A:
Q34: an R502 system
A:
Q35: 12 . Which phrase best describes
A: A. Storage freezer
Q36: the proper use for a refrigerated
A:
Q37: box using a cap tube system ?
A:
, Q38: 13 . Which is the best example of
A: A. A freezer on which the door is opened 8
Q39: the definition of a storage box ?
A: times a day
Q40: 14 . In order to maintain proper
A: C. A thermal expansion valve
Q41: temperature under the various
A:
Q42: loads , a cooler or freezer located
A:
Q43: on a front prep line must be
A:
Q44: equipped with
A:
Q45: 15 . A cap tube is ineffective on
A: D. it cannot respond to the refrigerant needs
Q46: most commercial refrigeration
A: under heavy loads
Q47: systems because
A:
Q48: 16 . The sensor bulb on a TEV must
A: C. mounted tight to a clean surface on the
Q49: be
A: suction line close to the outlet of the coil
Q50: 17 . An automatic expansion valve
A: C. react well in situations of heavy loads .
