Chapter 1: Fundamentals of Mechanical Design

1.
Load and stress, strain
2.
Material damage
3.
fatigue
4.
Statics of Materials
5.
Combination of stress states
6.
Properties of plane figures
7.
torsion
8.
beam
9.
Stress of atonement
10.
Deflection of the beam
11.
column
12.
Tolerance and fit
- Previous and key expected questions

Chapter 2 Screw

1.
Overview of the screw
2.
Mechanics of screws
3.
Screw design
4.
bolt and nut
- Previous and key expected questions

Chapter 3 Keys, Pins, and Cotters

1.
key
2.
pin
3.
cotter
- Previous and key expected questions

Chapter 4 Rivet Joints

1.
Riveted joints
2.
Types of riveted joints
3.
riveting
4.
Strength of riveted joints
5.
Riveted joints for boilers
6.
Riveted joints subjected to eccentric loads
- Previous and key expected questions

Chapter 5 Welded Joints

1.
Overview of Welding
2.
Types of welding
3.
Welding parts and welding symbols
4.
Types of welded joints
5.
Defects in welds
6.
Efficiency of welded joints
7.
Strength design of welded joints
- Previous and key expected questions

Chapter 6 Shaft

1.
General information about the axis
2.
Design based on axis strength
3.
Axial stiffness design
4.
Critical speed of the axis
5.
Distance between bearings
- Previous and key expected questions

Chapter 7 Axial Joints

1.
Types of axial joints
2.
Coupling design
3.
Clutch design
- Previous and key expected questions

Chapter 8 Bearings

1.
Bearing Overview
2.
sliding bearing
3.
rolling bearing
- Previous and key expected questions

Chapter 9 Friction wheel

1.
Overview of the friction wheel
2.
spur friction wheel
3.
grooved friction wheel
4.
cone friction wheel
5.
continuously variable transmission friction vehicle
- Previous and key expected questions

Chapter 10 Gear

1.
Gear Overview
2.
spur gear (= standard gear: spur gear)
3.
helical gear
4.
bevel gear
5.
worm gear
6.
gear train
7.
planetary gear train
- Previous and key expected questions

Chapter 11 Winding Power Elements

1.
Belt drive
2.
Rope transmission
3.
Chain drive device
- Previous and key expected questions

Chapter 12 Brakes and Flywheels

1.
General information about brakes
2.
block brake
3.
expansion brake
4.
Compression brake
5.
band break
6.
Automatic load brake
7.
fly wheel
- Previous and key expected questions

Chapter 13 Spring

1.
Spring characteristics
2.
Types of springs
3.
Spring's functions and uses
4.
cylindrical coil spring
5.
torsion bar
6.
leaf spring
7.
disk spring
- Previous and key expected questions

Chapter 14 Pipe System Machine Elements

1.
pipe
2.
pipe joint
3.
valve
4.
cock
- Previous and key expected questions

Appendix (Previous Year's Exam Questions)
- 2014 Local 9th ​​Grade Open Competitive Recruitment Exam
- 2014 National 7th Grade Open Competitive Recruitment Exam
- 2015 National 9th ​​Grade Open Competitive Recruitment Exam
- 2015 Local 9th ​​Grade Open Competitive Recruitment Exam
- 2015 National 7th Grade Open Competitive Recruitment Exam
- 2016 National 9th ​​Grade Open Competitive Recruitment Exam
- 2016 Local 9th ​​Grade Open Competitive Recruitment Exam
- 2016 National 7th Grade Open Competitive Recruitment Exam
- 2017 National 9th ​​Grade Open Competitive Examination
- 2017 Local 9th ​​Grade Open Competitive Recruitment Exam
- 2017 National 7th Grade Open Competitive Recruitment Exam
- 2017 National Civil Service Grade 7 in the field of life safety
- 2017 9th grade local government employee in the second half of the year
- 2018 National 9th ​​Grade Open Competitive Examination
- 2018 Local 9th ​​Grade Open Competitive Recruitment Exam
- 2018 National 7th Grade Open Competitive Recruitment Exam
- 2019 National 9th ​​Grade Open Competitive Examination
- 2019 Seoul City 1st Grade 9 Exam
- 2019 Local 9th ​​Grade Open Competitive Examination
- 2019 National 7th Grade Open Competitive Recruitment Exam
- 2019 Local 9th ​​Grade High School Graduate (or Expected) Career Competitive Recruitment Examination
- 2020 Local 9th ​​Grade Open Competitive Examination
- 2020 National 9th ​​Grade Open Competitive Recruitment Exam
- 2020 National 7th Grade Open Competitive Recruitment Exam
- 2021 National 9th ​​Grade Open Competitive Recruitment Exam
- 2021 Local 9th ​​Grade Open Competitive Examination
- 2021 National 7th Grade Open Competitive Recruitment 2nd Exam
- 2022 National 9th ​​Grade Open Competitive Recruitment Exam
- 2022 Local 9th ​​Grade Open Competitive Examination
- 2022 National 7th Grade Open Competitive Recruitment 2nd Exam
- 2023 National 9th ​​Grade Open Competitive Recruitment Exam
- 2023 Local 9th ​​Grade Open Competitive Examination
- 2023 National 7th Grade Open Competitive Recruitment 2nd Exam
- 2024 National 9th ​​Grade Open Competitive Examination
- 2024 Local 9th ​​Grade Open Competitive Examination

① It was written based on many years of experience teaching at a mechanical engineering academy and past exam questions and exam criteria.
② We have faithfully organized the basic theories and concepts for each unit to ensure a comprehensive overview in a short period of time.
③ The direction of the problem flow was presented through relatively simple and easy explanations of the expected key questions from previous exams.
④ The problems adopted in this book are mainly those that are conceptually necessary or that can continue to be tested in the future, and the explanations also focus on establishing these main points.
⑤ In the appendix, we have provided recent exam questions as an opportunity for test takers to directly assess their own abilities.