DM Electrical Exam study plan

Define and compute Ohm's law, power, and series/parallel equivalent resistance for 20 mixed circuits without reference

Explain AC versus DC behavior of resistance, inductance, and capacitance and how each affects current and voltage phase

Locate and interpret the scope, definitions, and general requirements articles of the NEC for a set of 15 cited code scenarios

Convert between watts, horsepower, volt-amperes, and power factor in worked examples

Trace branch-circuit, feeder, and service calculation procedures for single-family and multifamily dwellings

Apply conductor ampacity and overcurrent protection sizing rules to 10 conductor-selection scenarios

Identify acceptable wiring methods for given occupancies and construction types

Distinguish box fill, conduit fill, and conductor bending-space requirements and compute each for sample layouts

Select raceway, cable, and enclosure types for wet, damp, corrosive, and hazardous locations with justification

Describe grounding and bonding requirements for services, equipment, and separately derived systems

Explain shock hazards, arc flash basics, approach boundaries, and lockout/tagout sequencing

Identify PPE selection criteria for common energized and de-energized tasks

Size and apply overcurrent devices, disconnects, and panelboard requirements across 10 equipment scenarios

Explain motor branch-circuit, overload, and controller requirements and perform a basic motor circuit sizing

Describe switching, receptacle, and GFCI/AFCI device requirements by location

Interpret nameplate data to verify equipment ratings against circuit design

Produce a load calculation and panel schedule for a small commercial occupancy

Estimate conductor, conduit, box, and device quantities from a simple one-line diagram and takeoff list

Apply demand factors and diversity to feeder and service sizing

Verify voltage-drop calculations for branch and feeder runs and select corrective conductor sizes

Install-sequence a representative raceway and conductor pull, listing supports, spacing, and termination steps

Differentiate contactor, relay, timer, and sensor control schemes and describe a basic motor start-stop circuit

Identify common installation defects and code violations from written descriptions

Match enclosure and device ratings to environmental and use conditions

Select and interpret meter readings for continuity, voltage, current, insulation resistance, and ground resistance tests

Diagnose 10 described faults using a structured symptom-to-cause troubleshooting method

Outline a preventive maintenance schedule for panels, motors, and grounding systems

State safe test-instrument practices and de-energized verification steps before work

Complete two full-length timed practice exams and score each by domain

Re-study the two lowest-scoring domains using targeted drills until errors drop

Recite key formulas, tables, and thresholds from memory in a rapid-review drill

Build a personal error log summarizing recurring mistake patterns and corrections