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AHR-110 Exam 3 Study Guide (latest version
2026/2027) Most Recent Exam 2026|2027 Actual
Complete Real Verified Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ |
Guaranteed Success!! Newest Exam!!!
Which of the following terms would be an example of a
refrigerant with no temperature glide? - Answer-A single-
compound refrigerant
The term "blend" refers to a refrigerant that The term
"blend" refers to a refrigerant that - Answer-Is made up of
two or more different refrigerants.
If the components of a binary refrigerant blend have
saturation temperatures of 35°F and 42°F at a pressure of
120 psig, what is the approximate temperature glide
associated with this refrigerant? - Answer-7°F
When a portion of a refrigerant blend evaporates or
condenses before the rest of the same blend, what is
occurring? - Answer-Fractionation
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Which of the following statements is true regarding
azeotropes and zeotropes? - Answer-They are both
refrigerant blends.
When refrigerant leaves a storage tank as a liquid and
enters the system as a vapor, what process is taking place
between the system and the gauge manifold? - Answer-
Restricting
When charging an air-conditioning system that is
operating with a thermostatic expansion valve, which of
the following is used as the primary guideline to ensure
that the system is properly charged? - Answer-Condenser
sub cooling
A service technician is charging an R-410A air-
conditioning system that has a TXV metering device. The
high-side saturation pressure is 365 psig and the unit's
technical manual specifies 10°F of liquid subcooling. What
would the desired liquid-line temperature be at the outlet
of the condensing unit? - Answer-100°F
A technician is working on an R-404A refrigeration system
and determines that the head pressure is 205 psig and the
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condenser outlet temperature is 80°F. The technician
correctly concludes that the amount of condenser
subcooling is - Answer-10°F.
When adding refrigerant to a newly evacuated system,
which of the following is the best method? - Answer-Add
liquid refrigerant to the system through the liquid-line
service valve
When charging a system with vapor refrigerant, what can
be done to increase the pressure in the refrigerant tank? -
Answer-Place the tank in a bath of warm water
As a system is charged with vapor refrigerant, the
refrigerant tank will likely - Answer-Experience a pressure
drop and a temperature drop.
A system's total refrigerant charge can be found on -
Answer-The nameplate of a package-type air-conditioning
system.
Automatic charging capability, auto-stop features, alarms,
and wireless remotes are features that are found on some
- Answer-Refrigerant charging scales.
AHR-110 Exam 3 Study Guide (latest version
2026/2027) Most Recent Exam 2026|2027 Actual
Complete Real Verified Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ |
Guaranteed Success!! Newest Exam!!!
Which of the following terms would be an example of a
refrigerant with no temperature glide? - Answer-A single-
compound refrigerant
The term "blend" refers to a refrigerant that The term
"blend" refers to a refrigerant that - Answer-Is made up of
two or more different refrigerants.
If the components of a binary refrigerant blend have
saturation temperatures of 35°F and 42°F at a pressure of
120 psig, what is the approximate temperature glide
associated with this refrigerant? - Answer-7°F
When a portion of a refrigerant blend evaporates or
condenses before the rest of the same blend, what is
occurring? - Answer-Fractionation
,2|Page
Which of the following statements is true regarding
azeotropes and zeotropes? - Answer-They are both
refrigerant blends.
When refrigerant leaves a storage tank as a liquid and
enters the system as a vapor, what process is taking place
between the system and the gauge manifold? - Answer-
Restricting
When charging an air-conditioning system that is
operating with a thermostatic expansion valve, which of
the following is used as the primary guideline to ensure
that the system is properly charged? - Answer-Condenser
sub cooling
A service technician is charging an R-410A air-
conditioning system that has a TXV metering device. The
high-side saturation pressure is 365 psig and the unit's
technical manual specifies 10°F of liquid subcooling. What
would the desired liquid-line temperature be at the outlet
of the condensing unit? - Answer-100°F
A technician is working on an R-404A refrigeration system
and determines that the head pressure is 205 psig and the
, 3|Page
condenser outlet temperature is 80°F. The technician
correctly concludes that the amount of condenser
subcooling is - Answer-10°F.
When adding refrigerant to a newly evacuated system,
which of the following is the best method? - Answer-Add
liquid refrigerant to the system through the liquid-line
service valve
When charging a system with vapor refrigerant, what can
be done to increase the pressure in the refrigerant tank? -
Answer-Place the tank in a bath of warm water
As a system is charged with vapor refrigerant, the
refrigerant tank will likely - Answer-Experience a pressure
drop and a temperature drop.
A system's total refrigerant charge can be found on -
Answer-The nameplate of a package-type air-conditioning
system.
Automatic charging capability, auto-stop features, alarms,
and wireless remotes are features that are found on some
- Answer-Refrigerant charging scales.
