Free HVAC Technician Exam Prep
HVAC Technician Exam Prep in Raleigh, NC
Free, gamified practice questions for the hvac technician licensing exam — with local salary context for Raleigh.
Why It's Worth Passing in Raleigh
- Median hvac technician salary in Raleigh: $51,500/yr
- Experienced earners: up to $79,000/yr
- Local job growth: +14%
- Open positions: 1,100+
What to Expect on the Exam
The hvac technician licensing exam covers code requirements, technical fundamentals, safety standards, and applied calculations. CraftPATH's free prep mirrors the real exam format with multiple-choice questions, instant feedback, and topic-by-topic drills.
Refrigeration
Refrigeration cycle, pressure-temperature relationships, superheat/subcooling, refrigerant types, and system charging procedures.
Electrical Systems
HVAC electrical components, wiring diagrams, motor types, capacitors, contactors, and electrical troubleshooting.
Air Flow & Distribution
Duct design, air balancing, static pressure, CFM calculations, and air distribution systems.
Controls & Thermostats
Control circuits, thermostat wiring, programmable controls, building automation, and zone systems.
EPA 608 Certification
Refrigerant regulations, recovery procedures, leak detection, environmental compliance, and certification types.
- Length: 100–150 questions (25 per EPA 608 section)
- Time limit: 2–4 hours
- Passing score: 70%
- Exam fee: $20–$150 (varies by certification)
- Format: Closed-book (most certifications)
Sample HVAC Technician Practice Questions
Six questions from the free hvac technician bank, with the answer and the reasoning behind it.
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1. What is a thermistor? (Controls)
- A. A type of thermostat
- B. A temperature-sensitive resistor used as a sensor
- C. A heating element
- D. A refrigerant gauge
Answer: B — A temperature-sensitive resistor used as a sensor
A thermistor is a resistor whose resistance changes with temperature, used as a temperature sensor in HVAC.
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2. What is a two-stage compressor? (Efficiency)
- A. Two compressors in one unit
- B. Operates at high and low capacity for better efficiency
- C. Runs twice as fast
- D. Uses two refrigerants
Answer: B — Operates at high and low capacity for better efficiency
A two-stage compressor operates at low capacity for mild conditions and high capacity for extreme temps, improving efficiency.
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3. What is the typical refrigerant charge measured in? (Refrigeration)
- A. Gallons
- B. Ounces or pounds
- C. Liters
- D. Cubic feet
Answer: B — Ounces or pounds
Refrigerant charge is measured in ounces or pounds and must match manufacturer specifications for proper operation.
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4. What is a UV light used for in HVAC? (Air Flow)
- A. Illumination
- B. Killing mold and bacteria on evaporator coils
- C. Measuring refrigerant leaks
- D. Heating air
Answer: B — Killing mold and bacteria on evaporator coils
UV lights installed near evaporator coils kill mold, bacteria, and other microorganisms to improve air quality.
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5. What is a scroll compressor? (Refrigeration)
- A. A round compressor
- B. Uses two spiral-shaped scrolls to compress refrigerant
- C. A type of fan
- D. An old-style compressor
Answer: B — Uses two spiral-shaped scrolls to compress refrigerant
Scroll compressors use two interleaving spiral scrolls to compress refrigerant quietly and efficiently.
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6. What is a humidistat? (Controls)
- A. A humidity record
- B. A control that activates equipment based on humidity levels
- C. A type of filter
- D. A pressure gauge
Answer: B — A control that activates equipment based on humidity levels
A humidistat senses humidity levels and activates humidifiers or dehumidifiers to maintain desired levels.
A Study Plan That Fits a Raleigh Work Week
- Weeks 1–2: untimed topic drills across every domain to find weak areas.
- Weeks 3–5: work the weak topics with the code book open, timing each lookup.
- Weeks 6–8: timed full-length rounds until you hold 85% consistently.
- Final week: review missed questions and confirm your North Carolina application status.
- Start with EPA 608 — it's required before handling refrigerants
- Master the refrigeration cycle and pressure-temperature charts
- Practice reading wiring diagrams until it becomes second nature
- Focus on troubleshooting scenarios — they're heavily tested
Local Context for Raleigh
North Carolina's humid summers and growing population make HVAC techs essential in the Triangle.
HVAC Technician Exam Questions from Raleigh Candidates
How much do hvac technicians make in Raleigh?
The median hvac technician salary in Raleigh, NC is $51,500. Entry-level roles start near $31,000 and experienced licensees reach $79,000. Passing the licensing exam is the gate to the upper half of that range.
Where can I take the hvac technician exam near Raleigh?
Raleigh, NC candidates test at state-approved centers scheduled through the North Carolina licensing board or its exam vendor. Local programs such as Wake Tech HVAC or NC HVAC Apprenticeship can point you to the nearest seat and confirm the paperwork you need before applying.
How long should I study before testing in North Carolina?
Most candidates give it 8 to 12 weeks at about an hour a night: untimed topic drills first, then code-book lookups against a clock, then full-length timed rounds until you hold 85% or better.
Is there demand for hvac technicians in Raleigh?
Yes — 1,100+ open positions with +14% projected growth. North Carolina's humid summers and growing population make HVAC techs essential in the Triangle.
Do these practice questions copy the real North Carolina exam?
No. Every question is original CraftPATH material written against published exam outlines and the code books North Carolina has adopted. The format matches the real test, the content does not reproduce licensed exam material.
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