Module 1
Electrical theory and plan interpretation
Build exam-ready understanding of electrical theory and plan interpretation through source-grounded explanations, worked examples, and original scenario practice.
California · Original 101PD learning guide
California CSLB C-10 Electrical Exam Prep Study Guide
Advanced California C-10 Electrical contractor exam preparation covering electrical theory, services and wiring, load calculations, troubleshooting, safety, and code application.
California Contractors State License Board owns the official credential and may change its blueprint, eligibility rules, fees, or delivery process. This guide keeps those boundaries visible while organizing original 101PD instruction around electrical theory and plan interpretation, services, feeders, branch circuits, and equipment, load calculations, testing, and troubleshooting, electrical safety and code application.
Skills you will practice
- Electrical theory and plan interpretation
- Services, feeders, branch circuits, and equipment
- Load calculations, testing, and troubleshooting
- Electrical safety and code application
Prerequisites
- Applicants must independently satisfy CSLB's current C-10 experience and application requirements.
- Review the current California Contractors State License Board eligibility rules and candidate materials before registering for the official examination.
Designed for
California electrical contractor applicants · Candidates who want a structured objective-by-objective study plan · Professionals using diagnostic results to target weak domains
What a learner should be able to do
- Outcome 1
Explain the core rules and concepts within electrical theory and plan interpretation.
- Outcome 2
Apply services, feeders, branch circuits, and equipment to realistic exam-style decisions.
- Outcome 3
Analyze load calculations, testing, and troubleshooting using a repeatable problem-solving process.
- Outcome 4
Use electrical safety and code application to identify readiness gaps before the official examination.
Original curriculum architecture
Each course is organized around these modules, original explanations, realistic cases, practice questions, and documented source review.
Module 2
Services, feeders, branch circuits, and equipment
Build exam-ready understanding of services, feeders, branch circuits, and equipment through source-grounded explanations, worked examples, and original scenario practice.
Module 3
Load calculations, testing, and troubleshooting
Build exam-ready understanding of load calculations, testing, and troubleshooting through source-grounded explanations, worked examples, and original scenario practice.
Module 4
Electrical safety and code application
Build exam-ready understanding of electrical safety and code application through source-grounded explanations, worked examples, and original scenario practice.
Official exam relationship
Independent preparation for C-10 Electrical trade examination
- Exam owner
- California Contractors State License Board
- Exam or series code
- C-10
101PD provides independent preparation and a training-completion record. California Contractors State License Board controls eligibility, registration, the official examination, scoring, and the resulting license or certification.
Review the official exam informationApplied portfolio exercise
Electrical plan, load, and safety workbook
Complete an applied readiness file that connects the official objective areas to realistic work decisions and a documented study plan.
- Plan-symbol and circuit map
- Worked load calculations
- Troubleshooting and safety decision log
Sources and boundaries
Sources establish current requirements and standards. They do not supply 101PD’s lesson text, scenarios, assessments, or project work.
Source set reviewed August 21, 2026.
- California Contractors State License Board official examination information
Controlling public source for the C-10 Electrical trade examination relationship, objectives, or candidate requirements. Recheck before publication and every version update.
- 101PD original-work standard
101PD develops its own explanations, examples, assessments, and applied projects.
Exam-prep questions
Who issues the C-10 Electrical trade examination?
California Contractors State License Board controls the official C-10 Electrical trade examination, including current eligibility, registration, delivery, scoring, and the resulting license or certification.
Does a 101PD completion certificate prove that I passed the official exam?
No. A 101PD certificate documents completion of independent training only. It is not an exam score, occupational license, authority approval, or third-party certification.
Are official exam registration and fees included?
No. Candidates register with California Contractors State License Board or its designated testing provider and pay any official fees separately. Always confirm the current candidate rules before registering.