Page 1 of 126
Hawaii (HI) C‑52 Ventilating & Air Conditioning Exam ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR
2. SUMMARIZED EXAM COVERAGE
The Hawaii C-52 Ventilating & Air Conditioning Exam tests knowledge of HVAC systems design,
installation, refrigeration principles, air distribution, electrical controls, safety compliance, and
Hawaii-specific energy and environmental requirements. Candidates must demonstrate ability to
install, maintain, and troubleshoot ventilation and air conditioning systems in residential and
commercial settings.
1.
A technician installs an air conditioning system but notices insufficient cooling due to incorrect
refrigerant charge.
A. Adjust refrigerant charge to manufacturer specifications
B. Increase fan speed only
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C. Reduce duct size
D. Ignore temperature difference
Answer: A
Rationale: Proper refrigerant charge ensures cooling efficiency.
2.
An HVAC system shows high static pressure readings in ductwork causing reduced airflow.
A. Check duct sizing and obstructions
B. Increase compressor size
C. Reduce thermostat settings
D. Ignore airflow loss
Answer: A
Rationale: High static pressure restricts airflow.
3.
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A technician finds that condensate drain lines are clogged causing water leakage indoors.
A. Clear drain lines and ensure proper slope
B. Increase refrigerant
C. Reduce airflow
D. Seal evaporator coil
Answer: A
Rationale: Drainage prevents water damage.
4.
An air conditioning system short cycles frequently without reaching set temperature.
A. Check thermostat calibration and system sizing
B. Increase duct size
C. Reduce insulation
D. Ignore cycling
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Answer: A
Rationale: Short cycling indicates control or sizing issues.
5.
A technician notices refrigerant leaks in a system operating with R-410A refrigerant.
A. Repair leak and recharge system properly
B. Continue operation
C. Vent refrigerant outdoors
D. Reduce compressor speed
Answer: A
Rationale: Refrigerant leaks reduce efficiency and violate regulations.
6.
An HVAC system in Hawaii shows corrosion damage on outdoor condenser coils.
Hawaii (HI) C‑52 Ventilating & Air Conditioning Exam ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT ANSWERS
LATEST UPDATE THIS YEAR
2. SUMMARIZED EXAM COVERAGE
The Hawaii C-52 Ventilating & Air Conditioning Exam tests knowledge of HVAC systems design,
installation, refrigeration principles, air distribution, electrical controls, safety compliance, and
Hawaii-specific energy and environmental requirements. Candidates must demonstrate ability to
install, maintain, and troubleshoot ventilation and air conditioning systems in residential and
commercial settings.
1.
A technician installs an air conditioning system but notices insufficient cooling due to incorrect
refrigerant charge.
A. Adjust refrigerant charge to manufacturer specifications
B. Increase fan speed only
, Page 2 of 126
C. Reduce duct size
D. Ignore temperature difference
Answer: A
Rationale: Proper refrigerant charge ensures cooling efficiency.
2.
An HVAC system shows high static pressure readings in ductwork causing reduced airflow.
A. Check duct sizing and obstructions
B. Increase compressor size
C. Reduce thermostat settings
D. Ignore airflow loss
Answer: A
Rationale: High static pressure restricts airflow.
3.
, Page 3 of 126
A technician finds that condensate drain lines are clogged causing water leakage indoors.
A. Clear drain lines and ensure proper slope
B. Increase refrigerant
C. Reduce airflow
D. Seal evaporator coil
Answer: A
Rationale: Drainage prevents water damage.
4.
An air conditioning system short cycles frequently without reaching set temperature.
A. Check thermostat calibration and system sizing
B. Increase duct size
C. Reduce insulation
D. Ignore cycling
, Page 4 of 126
Answer: A
Rationale: Short cycling indicates control or sizing issues.
5.
A technician notices refrigerant leaks in a system operating with R-410A refrigerant.
A. Repair leak and recharge system properly
B. Continue operation
C. Vent refrigerant outdoors
D. Reduce compressor speed
Answer: A
Rationale: Refrigerant leaks reduce efficiency and violate regulations.
6.
An HVAC system in Hawaii shows corrosion damage on outdoor condenser coils.
