What is the most missed part of the journeyman electrician exam?
Calculations, by a wide margin. On the Texas TDLR exam the Calculations part is scored on its own, and the most recent published pass rate on it was 20.56 percent, lower than the knowledge part. The math itself is not hard. It is setup under time pressure and slow code lookups that cost people the points.
Last reviewed June 2026 · Answered by JourneymanIQ staff
It is the calculations
Across states, the calculation questions leak the most points: voltage drop, conduit fill, box fill, dwelling and commercial loads, and motors. In Texas that part is now graded separately and fails the most candidates.
It is not raw math ability
Most of it is multiplication and table reading. What sinks people is freezing on a multi-step problem and burning the clock hunting through the book for the right table.
The fix is setup and reps
Use one repeatable five-step setup on every problem and drill the calc types one at a time. Steady daily reps beat cramming, and they turn the most-missed part into a strength.
Calculations leak the most points. Beat them with a fixed setup and daily reps, not raw math talent.
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