preface
Exam Guide
Structure of this book
Basic units

PART 01 Electrical Theory
Chapter 01.
Direct current theory
Chapter 02.
AC circuit
Chapter 03.
static electricity and magnetism
Frequently asked questions

PART 02 DIGITAL ENGINEERING
Chapter 01.
Set and encoding of numbers
Chapter 02.
Boolean algebra and logic circuits
Chapter 03.
Flip-flop circuit
Chapter 04.
combinational logic circuit
Frequently asked questions

PART 03 Electrical Characteristics of Transmission and Distribution Lines
Chapter 01.
Transmission and distribution methods and transmission and distribution voltages
Chapter 02.
Track quality and corona phenomenon
Chapter 03.
Characteristics of transmission lines and power source diagrams
Chapter 04.
power lines
Frequently asked questions

PART 04 Power Electronics
Chapter 01.
electronic phenomena
Chapter 02.
semiconductor
Chapter 03.
power circuit
Chapter 04.
amplifier circuit
Chapter 05.
Oscillator circuit
Chapter 06.
Modulation and decoding circuit
Frequently asked questions

PART 05 ELECTRICAL EQUIPMENT
Chapter 01.
DC motor
Chapter 02.
Synchronous
Chapter 03.
transformer
Chapter 04.
Induction machine
Chapter 05.
rectifier
Frequently asked questions

PART 06 Electrical Equipment Design and Construction
Chapter 01.
General Provisions
Chapter 02.
Power plant? Substation? Switchgear
Chapter 03.
power lines
Chapter 04.
Facilities in places where electricity is used
Chapter 05.
Features of the power line
Chapter 06.
Neutral grounding
Chapter 07.
Protection of equipment by lightning arresters
Chapter 08.
distribution lines
Chapter 09.
Demand and load
Chapter 10.
lighting equipment
Chapter 11.
distributed lighting equipment
Frequently asked questions

PART 07 Industrial Management
Chapter 01.
Quality control
Chapter 02.
production management
Frequently asked questions

PART 08 Korean Electrical Installation Regulations [KEC Regulations]
Chapter 01.
Common
Chapter 02.
low voltage electrical equipment
Chapter 03.
High voltage and extra high voltage electrical equipment
Frequently asked questions

Appendix Ⅰ│Previous Year's Exam Questions

· Exam questions from April 17, 2011
· Exam questions from July 31, 2011
· April 8, 2012 exam questions
· Exam questions from July 22, 2012
· Exam questions from April 14, 2013
· Exam questions from July 21, 2013
· Exam questions from April 6, 2014
· July 20, 2014 exam questions
· Exam questions from April 4, 2015
· Exam questions from July 19, 2015
· Exam questions from April 2, 2016
· Exam questions from July 10, 2016
· March 5, 2017 exam questions
· July 8, 2017 exam questions
· March 31, 2018 exam questions

Appendix II│CBT Past Exam Questions
· 2018 CBT Past Exam Questions
· 2019 CBT Past Exam Questions (Ⅰ)
· 2019 CBT Past Exam Questions (Ⅱ)
· 2020 CBT Past Exam Questions (Ⅰ)
· 2020 CBT Past Exam Questions (Ⅱ)
· 2021 CBT Past Exam Questions (Ⅰ)
· 2021 CBT Past Exam Questions (Ⅱ)
· 2022 CBT Past Exam Questions (Ⅰ)
· 2022 CBT Past Exam Questions (Ⅱ)
· 2023 73rd CBT Past Exam Restoration Questions
· 2023 74th CBT Past Exam Restoration Questions
· 2024 75th CBT Past Exam Restoration Questions
· 2024 76th CBT Past Exam Restoration Questions
· 2025 77th CBT Past Exam Restoration Questions
· 2025 78th CBT Past Exam Restoration Questions

First, a concise summary of the theory
We have also organized the key contents of the theories that are frequently tested on exams.

Second, the year of the previous exam and the comments on the questions are included.
In relation to the exam, the year of the exam and key points of the exam are organized on the wings to help you become familiar with them.

Third, thoroughly analyze past questions by unit.
In addition to providing detailed explanations of previous year's exam questions for each unit, we also include recurring types of questions to help you learn more thoroughly.

Fourth, video lectures directly delivered by the author
We provide lectures on the latest exam questions free of charge to help you understand what you have learned more clearly.