Each track has its own domain map and question bank. Take the diagnostic on the trade you are testing for.
NEC 2023 Compliant
Branch circuits, feeder calculations, conduit bending, transformer sizing, and grounding/bonding.
10 diagnostic questions
IPC & UPC Standards
Drainage systems, DWV piping, water distribution sizing, fixture unit calculations, and venting principles.
10 diagnostic questions
EPA Universal Certified
Refrigeration cycles, psychrometrics, heat pump troubleshooting, airflow calculations, and recovery protocols.
10 diagnostic questions
AWS Certified Welder
SMAW, GMAW, GTAW metallurgy, blueprint symbols, joint geometry, weld defect remediation, and safety.
10 diagnostic questions
IBC & Frame Code
Rafter math, stair calculations, load-bearing framing, concrete formwork, and exterior envelope waterproofing.
10 diagnostic questions
The $40 comprehensive diagnostic unlocks the full timed exam and your domain report.
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