Cheat sheet
Journeyman Electrician Cheat Sheet
General Knowledge
- 6% of exam
- Article 100 Theory Plan Reading Code Terms Exam Rules
Services + Service Equipment
- 11% of exam
- Article 230 Article 250 Service Loads Bonding Disconnects
Feeders
- 4% of exam
- Article 215 Article 225 Ampacity OCPD EGC
Branch Circuits + Conductors
- 19% of exam
- Article 210 Article 220 Article 240 GFCI/AFCI Conductors
Wiring Methods + Materials
- 26% of exam
- Chapter 3 Chapter 9 Raceway Fill Box Fill Cables
Equipment + Devices
- 13% of exam
- Receptacles Luminaires Panelboards Appliances HVAC
Control Devices
- 4% of exam
- Switches Disconnects Controllers Within Sight Lockout
Motors + Generators
- 6% of exam
- Article 430 Article 445 FLC Tables Overload SCPD
Special Occupancies + Conditions
- 11% of exam
- Chapter 5 Chapter 6 Chapter 7 PV Emergency Systems
Quick Facts
- Exam R17/T17/G17
- Questions 80 MCQ
- Time 4 hours
- Format Open book
- Fee $120
- Pass Usually 70%
- Pace 3 min/question
- License Jurisdiction decides
Exam Codes GE
- G=2017 | T=2020 | R=2023
- G17: 2017 NEC T17: 2020 NEC R17: 2023 NEC
Board vs ICC GE
Board
- Eligibility
- License rules
- Post-pass steps
ICC
- Exam delivery
- Bulletins
- Score reports
- License vs test
Find NEC Route GE
- Defined term → Article 100 ( Definitions )
- General install → Article 110 ( Workmanship )
- Service clue → Article 230 ( Services )
- Grounding clue → Article 250 ( Bonding )
- Raceway/cable → Chapter 3 ( Methods )
- Tables/fill → Chapter 9 ( Notes first )
Exam Logistics GE
- R17 2023 NEC
- T17 2020 NEC
- G17 2017 NEC
- Items 80 MCQ
- Limit 4 hours
- Pass Usually 70%
- Retake 10-day wait
- Result PASS only
Code Map GE
- 90-100-110, then chapters
- 90: purpose 100: definitions 110: install rules Ch 3: methods
Source Control GE
- AHJ Interprets code
- ICC Exam provider
- Board License authority
- Pearson VUE Test delivery
- PRONTO Remote option
- Open book Time limited
- Loose paper Usually prohibited
- Calculator Nonprogrammable only
Code Navigation GE
- Article 90 Purpose + scope
- Article 100 Definitions
- Article 110 General install rules
- Chapter 2 Wiring/design rules
- Chapter 3 Methods/materials
- Chapter 4 Equipment rules
- Chapter 9 Tables + notes
- Index Fast route
Definitions GE
- Accessible Expose without damage
- Readily accessible Reach quickly
- Ampacity Current under conditions
- Continuous load Three hours
- Service point Utility/premises boundary
- Feeder Before final OCPD
- Branch circuit After final OCPD
- Ground fault Unwanted ground path
Service vs Feeder SE
Service
- Utility source
- Service equipment
- Article 230
Feeder
- After service
- Before branch
- Article 215
- Source side matters
Service Picker SE
- Service conductors → Article 230
- Main bond → Article 250
- Ground rod → 250.53
- Service calc → Article 220
- Emergency disconnect → 230.85
- Working space → 110.26
Services + Bonding SE
- Article 230 Services
- Article 250 Grounding/bonding
- Disconnect Nearest entrance
- Six handles Max disconnects
- MBJ Neutral-equipment bond
- GEC Electrode conductor
- Ground rod 8 ft
- Working space 3 ft typical
- Emergency disconnect Outdoor dwellings
Grounding vs Bonding SE
Grounding
- Earth connection
- Stabilizes voltage
- GEC route
Bonding
- Metal continuity
- Fault path
- MBJ route
- Earth vs continuity
Power Wheel FE
- P=VxI | I=P/V
- Watts: V x A Amps: W / V VA: V x A
Calculation Cues FE
- Watts Volts x amps
- Amps Watts / volts
- 1ph VA V x A
- 3ph VA V x A x 1.732
- Demand factor Table reduction
- Neutral load Check Article 220
- Correction Ambient temperature
- Adjustment Conductor count
Protection Pair BR
- GFCI shocks; AFCI arcs
- GFCI: personnel AFCI: fire OCPD: ampacity
Feeder vs Branch BR
Feeder
- Supplies final OCPD
- Panels/subpanels
- Load calculation
Branch
- After final OCPD
- Outlets/equipment
- Article 210
- Before vs after
Size Conductors BR
- Branch load → Article 210
- Load calc → Article 220
- OCPD issue → Article 240
- Ampacity table → Article 310
- Feeder clue → Article 215
- Outside feeder → Article 225
Feeders + Branches BR
- Article 215 Feeders
- Article 210 Branch circuits
- Article 220 Load calculations
- Article 240 Overcurrent
- Article 310 Conductors
- Continuous Use 125%
- Small appliance Two 20A
- Laundry One 20A
- Bathroom 20A required
- GFCI Shock protection
- AFCI Arc protection
GFCI vs AFCI BR
GFCI
- Shock protection
- Ground-fault current
- Wet areas
AFCI
- Fire protection
- Arc faults
- Dwelling circuits
- Shock vs fire
Correction vs Adjustment BR
Correction
- Ambient temperature
- Table factor
- Heat condition
Adjustment
- Conductor count
- Raceway bundle
- Derating factor
- Temperature vs count
Fill Stack WI
- Box counts; raceway percent
- Box: volume Raceway: area Notes: control
Box Fill vs Raceway Fill WI
Box fill
- Volume allowance
- Device yokes
- 314.16
Raceway fill
- Area percent
- Chapter 9
- Table notes
- Volume vs area
Wiring Picker WI
- Box fill → 314.16
- Conduit fill → Chapter 9
- EMT clue → Article 358
- PVC clue → Article 352
- MC cable → Article 330
- UF burial → Table 300.5
Wiring Methods WI
- EMT Thin-wall raceway
- RMC Threaded metal raceway
- PVC Nonmetallic raceway
- MC cable Metal-clad cable
- NM cable Dry dwelling cable
- UF cable Direct burial
- Flexible cord Not fixed wiring
- Wet location Use wet-rated
Fill Rules WI
- Box fill 314.16
- Conductor count Volume allowance
- Device yoke Two conductors
- Internal clamp One conductor
- EGCs One total
- Raceway fill Chapter 9
- Table 1 40% common
- Nipples 60% max
Equipment + Devices EQ
- Receptacles Article 406
- Switches Article 404
- Panelboards Article 408
- Appliances Article 422
- Luminaires Article 410
- HVAC Article 440
- Disconnect label Purpose marked
- Listing Follow instructions
Motor Stack MO
- FLC, conductor, overload, SCPD
- FLC: tables Conductors: ampacity Overload: nameplate SCPD: faults
OCPD vs Overload MO
OCPD
- Short circuit
- Ground fault
- Conductor protection
Overload
- Motor heating
- Running current
- Nameplate based
- Fault vs heat
Motor + Special Picker MO
- Motor FLC → 430 tables
- Overload → Article 430
- Generator → Article 445
- PV → Article 690
- Hazardous → Article 500
- Emergency power → Article 700
Motors + Controls MO
- Motor FLC Use NEC tables
- Nameplate Overload sizing
- Overload Motor protection
- SCPD Fault protection
- Controller Starts motor
- Disconnect Within sight
- Generator Article 445
- Transformer Article 450
Nameplate vs FLC Table MO
Nameplate
- Overload sizing
- Actual motor
- Manufacturer data
FLC table
- Conductors
- SCPD sizing
- NEC standard
- Use depends on task
Emergency vs Standby SP
Emergency
- Life safety
- Article 700
- Legally required
Standby
- Optional loads
- Article 702
- Owner choice
- Required vs optional
Special Systems SP
- Hazardous area Class/division route
- Health care Article 517
- Pools Article 680
- RV parks Article 551
- Mobile homes Article 550
- PV systems Article 690
- Emergency systems Article 700
- Fire alarms Article 760
Common Traps
Exam vs license
- ICC tests trade ≠ Board issues license
Open book trap
- Book allowed ≠ Time scarce
Continuous load
- Three hours ≠ Size 125%
Ground vs bond
- Ground earth path ≠ Bond fault path
Nameplate trap
- Overload uses nameplate ≠ SCPD uses tables
Service disconnect
- Nearest entrance ≠ Readily accessible
Fill methods
- Box uses volume ≠ Raceway uses percent
Protection types
- GFCI shock ≠ AFCI arc
Last Minute
- 1. R17=2023; T17=2020; G17=2017
- 2. 80 MCQ; 4 hours
- 3. Pass usually 70%
- 4. Pace: 3 min/question
- 5. NEC edition controls answers
- 6. Article 100 for definitions
- 7. Article 230 for services
- 8. Article 250 for grounding
- 9. Article 310 for ampacity
- 10. Chapter 9 for fill
- 11. GFCI shock; AFCI arc
- 12. Continuous load: 125%
- 13. No blanks; guess finally
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