ALABAMA REFRIGERATION CONTRACTOR EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2027 INSTANT DOWNLOAD PDF
1. What is the primary function of a refrigeration system?
A. To create cold
B. To remove heat from a space or substance
C. To increase humidity
D. To generate electricity
Answer: B. To remove heat from a space or substance
Rationale: Refrigeration does not create “cold”; it transfers
heat from a lower-temperature area to a higher-temperature
area.
2. Which component absorbs heat from the refrigerated
space?
A. Condenser
B. Compressor
C. Evaporator
D. Receiver
Answer: C. Evaporator
Rationale: Refrigerant absorbs heat as it evaporates inside the
evaporator.
,3. Which component rejects heat to the surroundings?
A. Evaporator
B. Condenser
C. Accumulator
D. Expansion valve
Answer: B. Condenser
Rationale: The condenser removes heat from the refrigerant
and transfers it to air or water.
4. What is the main function of the compressor?
A. Reduce refrigerant pressure
B. Remove moisture
C. Raise refrigerant pressure and circulate refrigerant
D. Store liquid refrigerant
Answer: C. Raise refrigerant pressure and circulate refrigerant
Rationale: The compressor takes low-pressure vapor and
compresses it into high-pressure vapor.
5. What is the function of a metering device?
A. Increase condenser pressure
B. Control refrigerant flow into the evaporator
C. Store refrigerant
D. Remove oil
,Answer: B. Control refrigerant flow into the evaporator
Rationale: Expansion valves, capillary tubes, and similar devices
regulate refrigerant entering the evaporator.
6. Which sequence correctly represents the basic refrigeration
cycle?
A. Compressor → evaporator → condenser → metering device
B. Condenser → compressor → evaporator → receiver
C. Compressor → condenser → metering device → evaporator
D. Evaporator → condenser → compressor → metering device
Answer: C. Compressor → condenser → metering device →
evaporator
Rationale: Refrigerant is compressed, condensed, expanded,
and then evaporated.
7. What happens to refrigerant pressure when it passes
through a typical expansion device?
A. It increases
B. It decreases
C. It remains constant
D. It becomes atmospheric
Answer: B. It decreases
Rationale: The expansion device creates a pressure drop that
allows refrigerant to evaporate at a lower temperature.
, 8. Refrigerant leaving a properly operating evaporator is
normally:
A. High-pressure liquid
B. Low-pressure vapor
C. High-pressure liquid-vapor mixture
D. Atmospheric air
Answer: B. Low-pressure vapor
Rationale: Heat absorbed in the evaporator vaporizes the
refrigerant.
9. Refrigerant leaving the compressor is normally:
A. Low-pressure liquid
B. Low-pressure vapor
C. High-pressure vapor
D. High-pressure liquid
Answer: C. High-pressure vapor
Rationale: Compression raises both the refrigerant pressure
and temperature.
10. What is superheat?
A. Temperature of liquid below saturation
B. Temperature of vapor above its saturation temperature
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2027 INSTANT DOWNLOAD PDF
1. What is the primary function of a refrigeration system?
A. To create cold
B. To remove heat from a space or substance
C. To increase humidity
D. To generate electricity
Answer: B. To remove heat from a space or substance
Rationale: Refrigeration does not create “cold”; it transfers
heat from a lower-temperature area to a higher-temperature
area.
2. Which component absorbs heat from the refrigerated
space?
A. Condenser
B. Compressor
C. Evaporator
D. Receiver
Answer: C. Evaporator
Rationale: Refrigerant absorbs heat as it evaporates inside the
evaporator.
,3. Which component rejects heat to the surroundings?
A. Evaporator
B. Condenser
C. Accumulator
D. Expansion valve
Answer: B. Condenser
Rationale: The condenser removes heat from the refrigerant
and transfers it to air or water.
4. What is the main function of the compressor?
A. Reduce refrigerant pressure
B. Remove moisture
C. Raise refrigerant pressure and circulate refrigerant
D. Store liquid refrigerant
Answer: C. Raise refrigerant pressure and circulate refrigerant
Rationale: The compressor takes low-pressure vapor and
compresses it into high-pressure vapor.
5. What is the function of a metering device?
A. Increase condenser pressure
B. Control refrigerant flow into the evaporator
C. Store refrigerant
D. Remove oil
,Answer: B. Control refrigerant flow into the evaporator
Rationale: Expansion valves, capillary tubes, and similar devices
regulate refrigerant entering the evaporator.
6. Which sequence correctly represents the basic refrigeration
cycle?
A. Compressor → evaporator → condenser → metering device
B. Condenser → compressor → evaporator → receiver
C. Compressor → condenser → metering device → evaporator
D. Evaporator → condenser → compressor → metering device
Answer: C. Compressor → condenser → metering device →
evaporator
Rationale: Refrigerant is compressed, condensed, expanded,
and then evaporated.
7. What happens to refrigerant pressure when it passes
through a typical expansion device?
A. It increases
B. It decreases
C. It remains constant
D. It becomes atmospheric
Answer: B. It decreases
Rationale: The expansion device creates a pressure drop that
allows refrigerant to evaporate at a lower temperature.
, 8. Refrigerant leaving a properly operating evaporator is
normally:
A. High-pressure liquid
B. Low-pressure vapor
C. High-pressure liquid-vapor mixture
D. Atmospheric air
Answer: B. Low-pressure vapor
Rationale: Heat absorbed in the evaporator vaporizes the
refrigerant.
9. Refrigerant leaving the compressor is normally:
A. Low-pressure liquid
B. Low-pressure vapor
C. High-pressure vapor
D. High-pressure liquid
Answer: C. High-pressure vapor
Rationale: Compression raises both the refrigerant pressure
and temperature.
10. What is superheat?
A. Temperature of liquid below saturation
B. Temperature of vapor above its saturation temperature
