Kansas Hvac Contractor Exam Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
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1. Which organization publishes the International Mechanical Code
(IMC)?
A. ASHRAE
B. ICC
C. NFPA
D. EPA
Answer: B
Rationale: The International Code Council (ICC) publishes the International
Mechanical Code used by Kansas jurisdictions.
2. Which refrigerant is classified as an HFC?
A. R-22
B. R-12
C. R-410A
D. R-717
Answer: C
Rationale: R-410A is a hydrofluorocarbon (HFC) commonly used in modern
HVAC systems.
, 3. What is the minimum required clearance in front of an electrical panel
serving HVAC equipment?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
Answer: C
Rationale: The NEC requires a minimum of 36 inches of clear working space
in front of electrical panels.
4. Which component controls the flow of refrigerant into the
evaporator?
A. Compressor
B. Condenser
C. Metering device
D. Accumulator
Answer: C
Rationale: The metering device regulates refrigerant flow into the
evaporator coil.
5. Which gas is odorless but made detectable by an added odorant in gas
piping systems?
A. Propane
B. Carbon monoxide
C. Nitrogen
D. Natural gas
Answer: D
Rationale: Natural gas is odorless but treated with mercaptan to provide a
detectable smell for safety.
, 6. What is the primary purpose of a heat exchanger in a furnace?
A. Increase airflow
B. Transfer heat safely
C. Store fuel
D. Control pressure
Answer: B
Rationale: The heat exchanger transfers heat from combustion gases to air
without mixing them.
7. Which type of system uses ducts to distribute conditioned air?
A. Hydronic
B. Radiant
C. Forced-air
D. Geothermal loop
Answer: C
Rationale: Forced-air systems distribute heated or cooled air through
ductwork.
8. What instrument is used to measure static pressure in duct systems?
A. Thermometer
B. Manometer
C. Anemometer
D. Hygrometer
Answer: B
Rationale: A manometer measures pressure differences in HVAC air
distribution systems.
, 9. Which electrical component protects HVAC motors from overload?
A. Transformer
B. Relay
C. Fuse
D. Overload protector
Answer: D
Rationale: Overload protectors shut down motors when excessive current
is detected.
10. What does SEER measure?
A. Heating output
B. Electrical resistance
C. Cooling efficiency
D. Airflow rate
Answer: C
Rationale: Seasonal Energy Efficiency Ratio (SEER) measures cooling
efficiency of air conditioners.
11. Which refrigerant is banned from new equipment due to ozone
depletion?
A. R-410A
B. R-134a
C. R-22
D. R-32
Answer: C
Rationale: R-22 is an HCFC phased out due to ozone depletion potential.
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1. Which organization publishes the International Mechanical Code
(IMC)?
A. ASHRAE
B. ICC
C. NFPA
D. EPA
Answer: B
Rationale: The International Code Council (ICC) publishes the International
Mechanical Code used by Kansas jurisdictions.
2. Which refrigerant is classified as an HFC?
A. R-22
B. R-12
C. R-410A
D. R-717
Answer: C
Rationale: R-410A is a hydrofluorocarbon (HFC) commonly used in modern
HVAC systems.
, 3. What is the minimum required clearance in front of an electrical panel
serving HVAC equipment?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
Answer: C
Rationale: The NEC requires a minimum of 36 inches of clear working space
in front of electrical panels.
4. Which component controls the flow of refrigerant into the
evaporator?
A. Compressor
B. Condenser
C. Metering device
D. Accumulator
Answer: C
Rationale: The metering device regulates refrigerant flow into the
evaporator coil.
5. Which gas is odorless but made detectable by an added odorant in gas
piping systems?
A. Propane
B. Carbon monoxide
C. Nitrogen
D. Natural gas
Answer: D
Rationale: Natural gas is odorless but treated with mercaptan to provide a
detectable smell for safety.
, 6. What is the primary purpose of a heat exchanger in a furnace?
A. Increase airflow
B. Transfer heat safely
C. Store fuel
D. Control pressure
Answer: B
Rationale: The heat exchanger transfers heat from combustion gases to air
without mixing them.
7. Which type of system uses ducts to distribute conditioned air?
A. Hydronic
B. Radiant
C. Forced-air
D. Geothermal loop
Answer: C
Rationale: Forced-air systems distribute heated or cooled air through
ductwork.
8. What instrument is used to measure static pressure in duct systems?
A. Thermometer
B. Manometer
C. Anemometer
D. Hygrometer
Answer: B
Rationale: A manometer measures pressure differences in HVAC air
distribution systems.
, 9. Which electrical component protects HVAC motors from overload?
A. Transformer
B. Relay
C. Fuse
D. Overload protector
Answer: D
Rationale: Overload protectors shut down motors when excessive current
is detected.
10. What does SEER measure?
A. Heating output
B. Electrical resistance
C. Cooling efficiency
D. Airflow rate
Answer: C
Rationale: Seasonal Energy Efficiency Ratio (SEER) measures cooling
efficiency of air conditioners.
11. Which refrigerant is banned from new equipment due to ozone
depletion?
A. R-410A
B. R-134a
C. R-22
D. R-32
Answer: C
Rationale: R-22 is an HCFC phased out due to ozone depletion potential.
