HVAC JOURNEYMAN STUDY GUIDE ACTUAL
EXAM 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ (801) What occurs during the latent heat of condensation? Answer:
Vapor turns to a liquid
◉ (801) What determines the pressure required to achieve a specific
flow rate? Answer: Design of the piping system
◉ (802) What three processes take place in the condenser? Answer:
Desuperheating, condensing, and subcooling
◉ (802) The heat being absorbed in the evaporator comes from the.
Answer: product being cooled or the conditioned space
◉ (803) What happens to the exhaust valve of a compressor during the
intake stroke? Answer: Backpressure from the high side closes it
◉ (803) What effect do fins on the shell of a compressor have? Answer:
Increase surface area and allow more heat transfer with ambient air
,◉ (803) What does a check valve in the discharge line prevent with a
rotary compressor? Answer: Gas from leaking back to compressor
◉ (803) Why must you be careful when placing meter leads on
compressor terminals? Answer: This is the weakest section of the
compressor and a blowout could occur
◉ (803) What is the result of a loose electrical connection at the
compressor terminal? Answer: Increased heat
◉ (803) Where are internal motor protection devices embedded?
Answer: In or near the motor windings
◉ (804) Desuperheating generally takes place in the. Answer: discharge
line and first few coils of the condenser
◉ (804) Non-condensables inside a refrigeration system are in what
form? Answer: Gas
◉ (804) In a refrigeration system air gets trapped at the. Answer: top of
the condenser and receiver
◉ (804) What effect does counter flow have in a double-tube condenser?
Answer: Gives condenser a higher efficiency
, ◉ (805) What is the relationship between a capillary tube metering
device and refrigerant charge? Answer: Using a capillary device makes
the charge critical
◉ (805) A filter strainer should be installed at the inlet of the capillary
tube to. Answer: prevent dirt and foreign matter from clogging the tube
◉ (805) In figure 1-41 where is the point of complete vaporization?
Answer: V
◉ (805)When the evaporator pressure rises after the compressor stops
the automatic expansion valve (AXV)? Answer: closes
◉ (805) What happens when a stepper motor expansion device receives
a signal from the controller? Answer: Rotates a precise, small amount
◉ (805) An electronic expansion valve stepper motor's electronic
controller receives a pressure reading from a. Answer: transducer in the
suction line
◉ (805) How does a pulse with modulating electronic expansion valve
(EEV) vary refrigerant flow? Answer: A signal quickly opens and closes
the solenoid valve
EXAM 2026 QUESTIONS WITH ANSWERS
GRADED A+
◉ (801) What occurs during the latent heat of condensation? Answer:
Vapor turns to a liquid
◉ (801) What determines the pressure required to achieve a specific
flow rate? Answer: Design of the piping system
◉ (802) What three processes take place in the condenser? Answer:
Desuperheating, condensing, and subcooling
◉ (802) The heat being absorbed in the evaporator comes from the.
Answer: product being cooled or the conditioned space
◉ (803) What happens to the exhaust valve of a compressor during the
intake stroke? Answer: Backpressure from the high side closes it
◉ (803) What effect do fins on the shell of a compressor have? Answer:
Increase surface area and allow more heat transfer with ambient air
,◉ (803) What does a check valve in the discharge line prevent with a
rotary compressor? Answer: Gas from leaking back to compressor
◉ (803) Why must you be careful when placing meter leads on
compressor terminals? Answer: This is the weakest section of the
compressor and a blowout could occur
◉ (803) What is the result of a loose electrical connection at the
compressor terminal? Answer: Increased heat
◉ (803) Where are internal motor protection devices embedded?
Answer: In or near the motor windings
◉ (804) Desuperheating generally takes place in the. Answer: discharge
line and first few coils of the condenser
◉ (804) Non-condensables inside a refrigeration system are in what
form? Answer: Gas
◉ (804) In a refrigeration system air gets trapped at the. Answer: top of
the condenser and receiver
◉ (804) What effect does counter flow have in a double-tube condenser?
Answer: Gives condenser a higher efficiency
, ◉ (805) What is the relationship between a capillary tube metering
device and refrigerant charge? Answer: Using a capillary device makes
the charge critical
◉ (805) A filter strainer should be installed at the inlet of the capillary
tube to. Answer: prevent dirt and foreign matter from clogging the tube
◉ (805) In figure 1-41 where is the point of complete vaporization?
Answer: V
◉ (805)When the evaporator pressure rises after the compressor stops
the automatic expansion valve (AXV)? Answer: closes
◉ (805) What happens when a stepper motor expansion device receives
a signal from the controller? Answer: Rotates a precise, small amount
◉ (805) An electronic expansion valve stepper motor's electronic
controller receives a pressure reading from a. Answer: transducer in the
suction line
◉ (805) How does a pulse with modulating electronic expansion valve
(EEV) vary refrigerant flow? Answer: A signal quickly opens and closes
the solenoid valve
