Georgia Refrigeration Technician Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a refrigeration system?
a. Heating a space
b. Removing heat from a space
c. Increasing air pressure
d. Adding humidity
Rationale: The main function of refrigeration is to remove heat
from a designated area to maintain a lower temperature.
2. Which component of a refrigeration system is responsible for
compressing the refrigerant?
a. Evaporator
b. Condenser
c. Compressor
d. Expansion valve
Rationale: The compressor increases the pressure of the
refrigerant, allowing it to circulate through the system.
3. In a vapor-compression refrigeration cycle, the refrigerant absorbs
heat in the:
a. Compressor
b. Condenser
, c. Evaporator
d. Expansion device
Rationale: The evaporator is where the refrigerant absorbs heat
from the space to be cooled.
4. The process of changing refrigerant from a liquid to a vapor occurs
in the:
a. Condenser
b. Compressor
c. Evaporator
d. Suction line
Rationale: The evaporator facilitates the phase change of
refrigerant from liquid to vapor, absorbing heat in the process.
5. What is the function of a condenser in a refrigeration system?
a. Compress refrigerant
b. Evaporate refrigerant
c. Remove heat from refrigerant
d. Meter refrigerant flow
Rationale: The condenser releases the absorbed heat from the
refrigerant to the outside environment.
6. Which type of compressor uses pistons to compress refrigerant?
a. Scroll
b. Screw
c. Reciprocating
d. Centrifugal
Rationale: Reciprocating compressors use pistons driven by a
crankshaft to compress refrigerant gas.
, 7. What does a thermostatic expansion valve (TXV) control in a
refrigeration system?
a. Compressor speed
b. Condenser temperature
c. Amount of refrigerant entering the evaporator
d. Suction pressure
Rationale: A TXV regulates refrigerant flow into the evaporator
based on load conditions.
8. Which refrigerant is commonly referred to as R-22?
a. R-134a
b. Chlorodifluoromethane
c. Ammonia
d. R-410A
Rationale: R-22 is chlorodifluoromethane, a
hydrochlorofluorocarbon (HCFC) used in older systems.
9. What safety equipment should be used when handling
refrigerants?
a. Apron only
b. Gloves only
c. Gloves, goggles, and proper ventilation
d. No protection needed
Rationale: Refrigerants can be hazardous; proper PPE is required
to prevent injury or chemical exposure.
10. Which of the following indicates a system is overcharged
with refrigerant?
a. Low suction pressure
b. High discharge pressure
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a refrigeration system?
a. Heating a space
b. Removing heat from a space
c. Increasing air pressure
d. Adding humidity
Rationale: The main function of refrigeration is to remove heat
from a designated area to maintain a lower temperature.
2. Which component of a refrigeration system is responsible for
compressing the refrigerant?
a. Evaporator
b. Condenser
c. Compressor
d. Expansion valve
Rationale: The compressor increases the pressure of the
refrigerant, allowing it to circulate through the system.
3. In a vapor-compression refrigeration cycle, the refrigerant absorbs
heat in the:
a. Compressor
b. Condenser
, c. Evaporator
d. Expansion device
Rationale: The evaporator is where the refrigerant absorbs heat
from the space to be cooled.
4. The process of changing refrigerant from a liquid to a vapor occurs
in the:
a. Condenser
b. Compressor
c. Evaporator
d. Suction line
Rationale: The evaporator facilitates the phase change of
refrigerant from liquid to vapor, absorbing heat in the process.
5. What is the function of a condenser in a refrigeration system?
a. Compress refrigerant
b. Evaporate refrigerant
c. Remove heat from refrigerant
d. Meter refrigerant flow
Rationale: The condenser releases the absorbed heat from the
refrigerant to the outside environment.
6. Which type of compressor uses pistons to compress refrigerant?
a. Scroll
b. Screw
c. Reciprocating
d. Centrifugal
Rationale: Reciprocating compressors use pistons driven by a
crankshaft to compress refrigerant gas.
, 7. What does a thermostatic expansion valve (TXV) control in a
refrigeration system?
a. Compressor speed
b. Condenser temperature
c. Amount of refrigerant entering the evaporator
d. Suction pressure
Rationale: A TXV regulates refrigerant flow into the evaporator
based on load conditions.
8. Which refrigerant is commonly referred to as R-22?
a. R-134a
b. Chlorodifluoromethane
c. Ammonia
d. R-410A
Rationale: R-22 is chlorodifluoromethane, a
hydrochlorofluorocarbon (HCFC) used in older systems.
9. What safety equipment should be used when handling
refrigerants?
a. Apron only
b. Gloves only
c. Gloves, goggles, and proper ventilation
d. No protection needed
Rationale: Refrigerants can be hazardous; proper PPE is required
to prevent injury or chemical exposure.
10. Which of the following indicates a system is overcharged
with refrigerant?
a. Low suction pressure
b. High discharge pressure
