1|Page
ESCO Air Conditioning Exam||Verified Exam!!! | Most
Recent Exam 2026 Actual Complete Real Exam
Questions With 100% Correct Answers | Verified
Answers | Already Graded A+ | Guaranteed Success!! |
Newest Exam!!!
Air or other non-condensable gases in a capillary tube air
conditioning system will cause these symptoms: -
Answers-low suction pressure and high discharge
pressure
A TXV sensing bulb which becomes detached from the
suction line will cause these symptoms: - Answers-high
suction pressure and lower than normal discharge
pressure
Heat which causes a change in temperature of a
substance is called: - Answers-Sensible heat
Heat added to a substance without a rise in temperature;
(example: liquid refrigerant to gas) this process is called: -
Answers-Latent Heat of Vaporization
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Heat added to the refrigerant in a vapor state after the
evaporation process is called: - Answers-Superheat
Scroll Compressors moves refrigerant by means of: -
Answers-Involute Spirals
The movement of heat by direct contact is: - Answers-
Conduction
The standard unit for measuring the quantity of heat in a
substance is: - Answers-BTUs
A refrigerant gives up heat when; - Answers-it condenses
Why must refrigerant in the suction line be slightly warmer
than the saturation temperature? - Answers-Prevent liquid
slugging of the compressor
The evaporator: - Answers-transfers heat from the
refrigerated space to the refrigerant
Refrigerant R-134-A vapor enters the condenser at 125
psig, 100 degrees F. It leaves as a liquid from the
, 3|Page
condenser sub-cooled 20 F, and the pressure will be
approximately: - Answers-124 psig
Bubbles in a sight glass could be an indication of: -
Answers-a refrigerant blend with a high temperature glide
Water will vaporize at ________________ temperature in
a 28 in Hg vacuum. - Answers-100 F
Back Seating a two way service valve results in: -
Answers-closed service port with normal system flow
When topping off an operating system containing a
blended refrigerant: - Answers-remove the refrigerant from
the jug as a LIQUID and introduce the refrigerant as a
VAPOR into the low side using a throttling valve or your
manifold gauge.
If a small air conditioner has only a very low, insignificant
refrigerant pressure drop through the evaporator coil, the
manufacturer may use? - Answers-an internal equalized
thermostatic expansion valve
ESCO Air Conditioning Exam||Verified Exam!!! | Most
Recent Exam 2026 Actual Complete Real Exam
Questions With 100% Correct Answers | Verified
Answers | Already Graded A+ | Guaranteed Success!! |
Newest Exam!!!
Air or other non-condensable gases in a capillary tube air
conditioning system will cause these symptoms: -
Answers-low suction pressure and high discharge
pressure
A TXV sensing bulb which becomes detached from the
suction line will cause these symptoms: - Answers-high
suction pressure and lower than normal discharge
pressure
Heat which causes a change in temperature of a
substance is called: - Answers-Sensible heat
Heat added to a substance without a rise in temperature;
(example: liquid refrigerant to gas) this process is called: -
Answers-Latent Heat of Vaporization
,2|Page
Heat added to the refrigerant in a vapor state after the
evaporation process is called: - Answers-Superheat
Scroll Compressors moves refrigerant by means of: -
Answers-Involute Spirals
The movement of heat by direct contact is: - Answers-
Conduction
The standard unit for measuring the quantity of heat in a
substance is: - Answers-BTUs
A refrigerant gives up heat when; - Answers-it condenses
Why must refrigerant in the suction line be slightly warmer
than the saturation temperature? - Answers-Prevent liquid
slugging of the compressor
The evaporator: - Answers-transfers heat from the
refrigerated space to the refrigerant
Refrigerant R-134-A vapor enters the condenser at 125
psig, 100 degrees F. It leaves as a liquid from the
, 3|Page
condenser sub-cooled 20 F, and the pressure will be
approximately: - Answers-124 psig
Bubbles in a sight glass could be an indication of: -
Answers-a refrigerant blend with a high temperature glide
Water will vaporize at ________________ temperature in
a 28 in Hg vacuum. - Answers-100 F
Back Seating a two way service valve results in: -
Answers-closed service port with normal system flow
When topping off an operating system containing a
blended refrigerant: - Answers-remove the refrigerant from
the jug as a LIQUID and introduce the refrigerant as a
VAPOR into the low side using a throttling valve or your
manifold gauge.
If a small air conditioner has only a very low, insignificant
refrigerant pressure drop through the evaporator coil, the
manufacturer may use? - Answers-an internal equalized
thermostatic expansion valve
