NEC 2017

Question 1

90

Answer 1

Introduction

Question 2

100

Answer 2

Definitions

Question 3

110

Answer 3

Requirements for Electrical installations

Question 4

Chapter 1

Answer 4

General

Question 5

Chapter 2

Answer 5

Wiring and Protection

Question 6

200

Answer 6

Use and Identification of Grounded Conductors

Question 7

210

Answer 7

Branch Circuits

Question 8

215

Answer 8

Feeders

Question 9

220

Answer 9

Branch-Circuit, Feeder, and Service Load Calculations

Question 10

225

Answer 10

Outside Branch Circuits and Feeders

Question 11

230

Answer 11

Services

Question 12

240

Answer 12

Overcurrent Protection

Question 13

250

Answer 13

Grounding and Bonding

Question 14

280

Answer 14

Surge Arresters, Over 1000 V

Question 15

285

Answer 15

Surge-Protective Devices 1000 Volts or less

Question 16

Chapter 3

Answer 16

Wiring Methods and Materials

Question 17

300

Answer 17

General Requirements for Wiring Methods and Materials

Question 18

310

Answer 18

Conductors for General Wiring

Question 19

312

Answer 19

Cabinets, Cutout boxes, and Meter Socket Enclosures

Question 20

314

Answer 20

Outlet, Device, Pull and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures

Question 21

320

Answer 21

Armored Cable: Type AC

Question 22

322

Answer 22

Flat Cable Assemblies: Type FC

Question 23

324

Answer 23

Flat Conductor Cable: Type FCC

Question 24

334

Answer 24

Non-Metallic Sheathed Cable

Question 25

338

Answer 25

Service-Entrance Cable: Type SE and USE

Question 26

344

Answer 26

Rigid Metal Conduit

Question 27

348

Answer 27

Flexible Metal Conduit

Question 28

350

Answer 28

Liquidtight flexible metal conduit

Question 29

358

Answer 29

Electrical Metallic Tubing: Type EMT

Question 30

368

Answer 30

Busways

Question 31

376

Answer 31

Metal wireways

Question 32

378

Answer 32

Nonmetallic Wireways

Question 33

392

Answer 33

Cable Trays

Question 34

399

Answer 34

Outdoor Overhead Conductors over 1000 V

Question 35

Chapter 4

Answer 35

Equipment for General Uses

Question 36

400

Answer 36

Flexible Cords and Flexible Cables

Question 37

404

Answer 37

Switches

Question 38

406

Answer 38

Receptacles, Cord Connectors, and Attachment Plugs

Question 39

408

Answer 39

Switchboards, Switchgear, and Panelboards

Question 40

410

Answer 40

Luminaires, Lampholders, and Lamps

Question 41

422

Answer 41

Appliances

Question 42

424

Answer 42

Electric Space Heating Equipment

Question 43

430

Answer 43

Motors, Motor Circuits, and Controllers

Question 44

440

Answer 44

Air-Conditioning and Refrigerating Equipment

Question 45

445

Answer 45

Generators

Question 46

450

Answer 46

Transformers and Transformer Vaults

Question 47

490

Answer 47

Equipment over 1000 Volts

Question 48

Chapter 5

Answer 48

Special Occupancies

Question 49

500

Answer 49

Hazardous (Classified) Locations

Question 50

501

Answer 50

Class I Locations

Question 51

502

Answer 51

Class II Locations

Question 52

503

Answer 52

Class III Locations

Question 53

504

Answer 53

Intrinsically Safe Systems

Question 54

511

Answer 54

Commercial Garages, Repair and Storage

Question 55

514

Answer 55

Motor Fuel Dispensing Facilities

Question 56

517

Answer 56

Health Care Facilities

Question 57

518

Answer 57

Assembly Occupancies

Question 58

525

Answer 58

Carnivals, Circuses, Fairs, and Similar Events

Question 59

550

Answer 59

Mobile Homes, Manufactured Homes, and Mobile Home Parks

Question 60

555

Answer 60

Marinas, Boatyards, and Commercial and Noncommercial Docking Facilities

Question 61

590

Answer 61

Temporary Installations

Question 62

Chapter 6

Answer 62

Special Equipment

Question 63

600

Answer 63

Signs

Question 64

620

Answer 64

Elevators

Question 65

625

Answer 65

Electric Vehicle Charging System

Question 66

630

Answer 66

Electric Welders

Question 67

645

Answer 67

Information Technology Equipment

Question 68

660

Answer 68

X-Ray Equipment

Question 69

680

Answer 69

Swimming Pools, Fountains, and Similar Installations

Question 70

690

Answer 70

Solar Photovoltaic Systems

Question 71

695

Answer 71

Fire Pumps

Question 72

Chapter 7

Answer 72

Special Conditions

Question 73

700

Answer 73

Emergency Systems

Question 74

702

Answer 74

Optional Standby Systems

Question 75

706

Answer 75

Energy Storage Systems

Question 76

708

Answer 76

Critical Operations Power Systems

Question 77

760

Answer 77

Fire Alarm Systems

Question 78

770

Answer 78

Optical Fiber Systems

Question 79

Chapter 8

Answer 79

Communications Systems

Question 80

800

Answer 80

Communications Circuits

Question 81

810

Answer 81

Radio and Television Equipment

Question 82

820

Answer 82

Community Antenna Television and Radio Distribution Systems

Question 83

Chapter 9

Answer 83

Tables

Question 84

Annex A

Answer 84

Product Safety Standards

Question 85

Annex B

Answer 85

Application Information for Ampacity Calculation

Question 86

Annex C

Answer 86

Conduit and Tubing Fill Tables for Conductors and Fixture Wire of the Same Size