JourneymanIQ
The Academy

Every calculation on the exam, worked by hand on video.

Search your exam on YouTube and you get hours of it. None of it in order, none of it tied to the exam your state actually gives you, and no way to tell which one you needed tonight. This is 102 lessons in order, easiest first, each one worked start to finish and then handed to you to solve.

In order, easiest first

Episode one is a single multiply. Every lesson after it adds exactly one new thing to carry, so you are never dropped into a demand calculation cold.

Worked, then handed over

You watch the whole problem written out by hand, then the same page hands you one to solve. Every word spoken is written underneath, and you can pin a note to the second it clicked.

Your exam, on every lesson

The arithmetic is the same everywhere. The exam around it is not. Each lesson carries your exam name, your code edition, your passing score, what you can bring in, and the trap your state is known for. Texas, California, Michigan, Washington and Maryland today.

The whole run

10 series, 102 lessons. Take them top to bottom.

Foundations

Start here. One formula at a time, easiest first, and every one of them shows up again later.

  • Ohm's Law & Power, episode 1 of Foundations

    Power is volts times amps. Cover the one you want and the triangle gives you the rest.

  • Unit Conversions, episode 2 of Foundations

    Kilo means thousand. Move the decimal three places and keep going.

  • Series & Parallel Circuits, episode 3 of Foundations

    Series resistances add. Parallel ones always total less than the smallest branch.

  • Power Factor, episode 4 of Foundations

    Real power is apparent power times the power factor. Motors are never 1.0.

Calculation bootcamp

The patterns the calculations section actually tests. One multiply to start, building to the full demand calc.

  • Continuous Loads & EVSE, episode 1 of Calculation bootcamp

    Runs three hours or more, size it at 125 percent. That is the whole rule.

  • Box Fill, episode 2 of Calculation bootcamp

    Every conductor is one, all grounds together are one, a device on a yoke is two.

  • Conduit Fill, episode 3 of Calculation bootcamp

    Three or more conductors means 40 percent fill, and you never round up.

  • Voltage Drop, episode 4 of Calculation bootcamp

    The 2 is the round trip. Current goes out on the hot and back on the neutral.

  • HVAC Load, episode 5 of Calculation bootcamp

    The nameplate minimum circuit ampacity already has the 125 percent built in.

  • Motor Calculations, episode 6 of Calculation bootcamp

    Table current sizes the wire. The nameplate is for overload protection.

  • Dwelling Load, episode 7 of Calculation bootcamp

    Three volt amps a square foot, first 3,000 at full value, 35 percent on the rest.

Sizing and services

Where the tables earn their keep. Starts with a multiply and ends with a full commercial service.

  • Pull Box Sizing, episode 1 of Sizing and services

    Straight pull is 8 times the biggest raceway. Angle pull is 6 times plus the others.

  • Grounding & Bonding Sizing, episode 2 of Sizing and services

    Grounding electrode follows the service. Equipment ground follows the breaker.

  • Ampacity & Derating, episode 3 of Sizing and services

    Start at the table, then derate for fill and for heat, in that order.

  • Transformer Sizing, episode 4 of Sizing and services

    Three phase current is VA over volts times 1.732.

  • Commercial Load Calculation, episode 5 of Sizing and services

    Take each load at its own demand factor, then total. Never average them.

Code book and exam craft

Not a calculation in the run. These are the skills that decide the exam: finding a rule you have never read, and not losing the clock.

  • The map of the book, episode 1 of Code book and exam craft
  • Stop memorizing. Start navigating., episode 2 of Code book and exam craft
  • Speak the code's language, episode 3 of Code book and exam craft
  • The four places the exam keeps sending you, episode 4 of Code book and exam craft
  • Five questions on every lookup, episode 5 of Code book and exam craft
  • Branch circuit, feeder, service, episode 6 of Code book and exam craft
  • The power circle, episode 7 of Code book and exam craft
  • Reading the ampacity table, episode 8 of Code book and exam craft
  • Sizing a wire, start to finish, episode 9 of Code book and exam craft
  • GFCI and AFCI questions, episode 10 of Code book and exam craft
  • The scratch paper dump, episode 11 of Code book and exam craft
  • The five wave method, episode 12 of Code book and exam craft
  • When you freeze, episode 13 of Code book and exam craft
  • The next size up rule, episode 14 of Code book and exam craft
  • Working clearances, episode 15 of Code book and exam craft
  • Burial depths, episode 16 of Code book and exam craft
  • The multi motor feeder, episode 17 of Code book and exam craft

Wiring methods and materials

The biggest single slice of the exam and the one people skip. Which cable is allowed where, how far apart it gets stapled, and how deep it sits in the stud.

  • Where Romex is allowed, and where it never is, episode 1 of Wiring methods and materials
  • Twelve inches and four and a half feet, episode 2 of Wiring methods and materials
  • The inch and a quarter rule, episode 3 of Wiring methods and materials
  • EMT, IMC and rigid, told apart, episode 4 of Wiring methods and materials
  • Why 90 degree wire gets sized at 75, episode 5 of Wiring methods and materials
  • MC and AC cable, told apart, episode 6 of Wiring methods and materials
  • Wet, damp and dry, episode 7 of Wiring methods and materials
  • PVC, and the pipe that moves, episode 8 of Wiring methods and materials
  • When you need a box, and why it has to stay reachable, episode 9 of Wiring methods and materials
  • Four quarter bends and no more, episode 10 of Wiring methods and materials
  • Flex, whips and the six foot exception, episode 11 of Wiring methods and materials
  • Ducts, plenums and the space above the ceiling, episode 12 of Wiring methods and materials
  • Where underground comes up, episode 13 of Wiring methods and materials
  • What a box is allowed to hold up, episode 14 of Wiring methods and materials

Branch circuits and conductors

Second biggest slice of the exam. Where a receptacle has to go, what size wire feeds it, and which breaker is allowed in front of it.

  • Six and twelve, and why it is really just six, episode 1 of Branch circuits and conductors
  • Countertops run on different numbers, episode 2 of Branch circuits and conductors
  • The wire and the breaker are sized by the same thing, episode 3 of Branch circuits and conductors
  • Two hots, one neutral, one handle, episode 4 of Branch circuits and conductors
  • The circuits a house has to have, episode 5 of Branch circuits and conductors
  • Which receptacle is allowed on which circuit, episode 6 of Branch circuits and conductors
  • The receptacles outside the living space, episode 7 of Branch circuits and conductors
  • The lights a house has to have, and where the switch goes, episode 8 of Branch circuits and conductors
  • What a 15, 30 or 50 amp circuit is allowed to feed, episode 9 of Branch circuits and conductors
  • Replacing a receptacle brings today's rules with it, episode 10 of Branch circuits and conductors
  • The circuits the appliances need, episode 11 of Branch circuits and conductors
  • The places a receptacle is not allowed, episode 12 of Branch circuits and conductors
  • The colors that are law, and the ones that are only habit, episode 13 of Branch circuits and conductors
  • How many receptacles are allowed on one circuit, episode 14 of Branch circuits and conductors
  • The sign outlet, the show window, and the hotel room, episode 15 of Branch circuits and conductors

Motors and generators

The worst section on the exam: candidates miss 49 percent of it and take the longest doing it. Four numbers, four different jobs, and the table beats the nameplate.

  • The six parts of a motor circuit, episode 1 of Motors and generators
  • Use the table, not the nameplate, episode 2 of Motors and generators
  • Motor conductors run at 125 percent, episode 3 of Motors and generators
  • The overload watches the motor, episode 4 of Motors and generators
  • The breaker watches the wire, episode 5 of Motors and generators
  • Within sight, and 115 percent, episode 6 of Motors and generators
  • The controller is not the disconnect, episode 7 of Motors and generators
  • The feeder breaker for several motors, episode 8 of Motors and generators
  • Generators: 115 percent and a disconnect, episode 9 of Motors and generators
  • One motor, start to finish, episode 10 of Motors and generators

Services and grounding

The most asked section on the whole exam. Where the power comes in, what shuts it off, and the two ground wires people mix up all the way to test day.

  • The five parts of a service, episode 1 of Services and grounding
  • Where the main disconnect has to go, episode 2 of Services and grounding
  • Six disconnects, and the change people miss, episode 3 of Services and grounding
  • The smallest service the code will let you install, episode 4 of Services and grounding
  • The 83 percent rule for a house service, episode 5 of Services and grounding
  • The three ground wires, and what each one does, episode 6 of Services and grounding
  • Which electrodes you have to use, episode 7 of Services and grounding
  • Ground rods: the numbers and the 25 ohm trap, episode 8 of Services and grounding
  • Sizing the wire to the ground rods, episode 9 of Services and grounding
  • Sizing the equipment ground, episode 10 of Services and grounding
  • The main bonding jumper, episode 11 of Services and grounding
  • Why the subpanel keeps them separate, episode 12 of Services and grounding
  • Bonding the water pipe, the gas line and the steel, episode 13 of Services and grounding
  • What grounding is actually for, episode 14 of Services and grounding
  • Grounding a transformer secondary, episode 15 of Services and grounding
  • One service, start to finish, episode 16 of Services and grounding

Special occupancies

Gas stations, pools, job-site power and the hazardous location map. The section nobody works in every day, which is exactly why it costs points.

  • Class and Division, the two words that sort it all, episode 1 of Special occupancies
  • What you are allowed to run in a Class I area, episode 2 of Special occupancies
  • Seal-offs: where they go and what they stop, episode 3 of Special occupancies
  • The gas station: zones around the dispenser, episode 4 of Special occupancies
  • Temporary power: the job-site rules, episode 5 of Special occupancies
  • The pool bonding grid, and what it is really for, episode 6 of Special occupancies
  • The distances around a pool, episode 7 of Special occupancies
  • Spas, hot tubs, storable pools and fountains, episode 8 of Special occupancies

Feeders

The wire between the main and the subpanel. How to size it, what its neutral really carries, and the two tap rules the exam loves.

  • What a feeder is, and what it is not, episode 1 of Feeders
  • Sizing a feeder: the 125 percent step, episode 2 of Feeders
  • The feeder neutral carries the difference, episode 3 of Feeders
  • The 10 foot tap rule, episode 4 of Feeders
  • The 25 foot tap rule, episode 5 of Feeders
  • One feeder, start to finish, episode 6 of Feeders

The Academy is part of a JourneymanIQ subscription, alongside the practice engine, the calculators and the 30 day plan. The 15 minute diagnostic is free and needs no card.