NCCER HVAC Technician Knowledge Assessment — Information & Free Practice

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NCCER HVAC Technician Knowledge Assessment

Provider: NCCER
Format: Closed-book knowledge examination administered through NCCER-accredited assessment programs
Exam questions: Total questions: 128.
Time limit: Two hours
Passing score: 70

Examination outline

Basic Safety (0.78%)
Basic Rigging (1.56%)
Trade Mathematics (2.34%)
Soldering and Brazing (3.13%)
Ferrous Metal Piping Practices (3.13%)
Introduction to Cooling (4.69%)
Introduction to Heating (3.91%)
Air Distribution Systems (3.13%)
Commercial Airside Systems (3.91%)
Chimneys, Vents, and Flues (3.13%)
Leak Detection, Evacuation, Recovery, and Charging (3.91%)
Alternating Current (2.34%)
Introduction to Control Circuit Troubleshooting (3.91%)
Troubleshooting Gas Heating (1.56%)
Troubleshooting Cooling (5.47%)
Basic Installation and Maintenance Practices (3.13%)
Refrigerants and Oils (3.13%)
Compressors (3.13%)
Metering Devices (3.13%)
Commercial Hydronic Systems (3.13%)
Planned Maintenance (2.34%)
Troubleshooting Electronic Controls (0.78%)
Troubleshooting Heat Pumps (5.47%)
Troubleshooting Accessories (2.34%)
Construction Drawings and Specifications (3.13%)
Air System Balancing (3.91%)
Indoor Air Quality (6.25%)
System Startup and Shutdown (4.69%)
Heating and Cooling System Design (4.69%)
Commercial and Industrial Refrigeration Systems (3.91%)

Examination sources

This examination may be required or accepted as an alternative, depending on the license and application pathway.