NATIONAL ELECTRICAL CODE EXAM
QUESTIONS AND ANSWERS 2026
There are two basic types of rules int the NEC; what are they? -
correct answer ✅Mandatory rules and permissive rules.
Mandatory rules contain the words_____ -
correct answer ✅Shall or Shall not, and must be adhered to
Permissive rules identify _____ -
correct answer ✅Actions that are allowed but not required and
typically cover options or alternative methods.
Permissive rules are indicated by the phrases_____ -
correct answer ✅shall be permitted or shall not be required.
NEC Chapters 1, 2, 3, and 4 ...... -
correct answer ✅Present the rules for the design and installation
of electrical systems. They generally apply to all electrical
installations.
NEC Chapters 5, 6, and 7 ....... -
correct answer ✅are concerned with special occupancies,
equipment , and conditions. Rulles in these chapters may modify or
amend those in the first four chapters.
, NATIONAL ELECTRICAL CODE EXAM
QUESTIONS AND ANSWERS 2026
NEC Chapter 8 ...... -
correct answer ✅covers communications systems, such as the
telephone and television receiving equipment.
NEC Chapter 9 ...... -
correct answer ✅contains tables that are applicable when
referenced by other chapters in the NEC
What word or phrase best describes the NEC requirements for the
installation of electrical systems? -
correct answer ✅Minimum
Mandatory and permissive rules are defined in ____ -
correct answer ✅NEC article 90
Examples of branch circuit calculations can be found in ______ -
correct answer ✅NEC Informative Annex D
Cable trays are covered in ____ -
correct answer ✅NEC Article 392
QUESTIONS AND ANSWERS 2026
There are two basic types of rules int the NEC; what are they? -
correct answer ✅Mandatory rules and permissive rules.
Mandatory rules contain the words_____ -
correct answer ✅Shall or Shall not, and must be adhered to
Permissive rules identify _____ -
correct answer ✅Actions that are allowed but not required and
typically cover options or alternative methods.
Permissive rules are indicated by the phrases_____ -
correct answer ✅shall be permitted or shall not be required.
NEC Chapters 1, 2, 3, and 4 ...... -
correct answer ✅Present the rules for the design and installation
of electrical systems. They generally apply to all electrical
installations.
NEC Chapters 5, 6, and 7 ....... -
correct answer ✅are concerned with special occupancies,
equipment , and conditions. Rulles in these chapters may modify or
amend those in the first four chapters.
, NATIONAL ELECTRICAL CODE EXAM
QUESTIONS AND ANSWERS 2026
NEC Chapter 8 ...... -
correct answer ✅covers communications systems, such as the
telephone and television receiving equipment.
NEC Chapter 9 ...... -
correct answer ✅contains tables that are applicable when
referenced by other chapters in the NEC
What word or phrase best describes the NEC requirements for the
installation of electrical systems? -
correct answer ✅Minimum
Mandatory and permissive rules are defined in ____ -
correct answer ✅NEC article 90
Examples of branch circuit calculations can be found in ______ -
correct answer ✅NEC Informative Annex D
Cable trays are covered in ____ -
correct answer ✅NEC Article 392
