NEC Article 220 Parts 1-3 Questions-
Answers Questions with Complete
Solutions (Latest 2025)
The first four Chapters of the NEC applies to - Correct
Answers ✅Apply to all installations.
Article 90 precedes Chapter 1 establishes - Correct Answers
✅Establishes the authority of the NEC.
Article 80 follows the body of the NEC (Annex H) provides -
Correct Answers ✅It provides the requirements for
administration.
Chapters 5 covers - Correct Answers ✅Covers occupancies
Chapter 6 covers - Correct Answers ✅Covers equipment
Chapter 7 covers - Correct Answers ✅Covers Conditions
Chapter 8 provides - Correct Answers ✅Provides the
requirements for communications systems.
Chapter 9 provides - Correct Answers ✅Provides tables.
Appendices provide - Correct Answers ✅Provide mostly
reference information.
, NEC Article 220 Parts 1-3 Questions-
Answers Questions with Complete
Solutions (Latest 2025)
Appendix D contains - Correct Answers ✅Contains
examples that every NEC user SHOULD study.
What is the main purpose of Article 220 - Correct Answers
✅[220.1]. It provides the requirements for calculating
branch-circuit, feeder, and service loads. This makes it one of
the most important Articles to study and understand.
Is the number of Articles that apply to the calculations of
loads in special applications more than 10 or less than 10 -
Correct Answers ✅[220.3]. More than 10. Table 220.3
shows over two dozen entries, some of which are repeated.
If an application is covered by a special application Article,
does the information in that article replace what you would
otherwise use from Article 220 - Correct Answers
✅[220.3]. No. This is a common source of misunderstanding
and misapplication. These other Articles use Article 220 as
the starting point. In fact, the first four Chapters apply
generally to all installations [Figure 90.3]. Chapters 5 through
7 supplement or modify Chapters 1 through 4 [Figure 90.3].
Is it legal to perform calculations for a 115V circuit - Correct
Answers ✅[220.5(A)]. No.
Answers Questions with Complete
Solutions (Latest 2025)
The first four Chapters of the NEC applies to - Correct
Answers ✅Apply to all installations.
Article 90 precedes Chapter 1 establishes - Correct Answers
✅Establishes the authority of the NEC.
Article 80 follows the body of the NEC (Annex H) provides -
Correct Answers ✅It provides the requirements for
administration.
Chapters 5 covers - Correct Answers ✅Covers occupancies
Chapter 6 covers - Correct Answers ✅Covers equipment
Chapter 7 covers - Correct Answers ✅Covers Conditions
Chapter 8 provides - Correct Answers ✅Provides the
requirements for communications systems.
Chapter 9 provides - Correct Answers ✅Provides tables.
Appendices provide - Correct Answers ✅Provide mostly
reference information.
, NEC Article 220 Parts 1-3 Questions-
Answers Questions with Complete
Solutions (Latest 2025)
Appendix D contains - Correct Answers ✅Contains
examples that every NEC user SHOULD study.
What is the main purpose of Article 220 - Correct Answers
✅[220.1]. It provides the requirements for calculating
branch-circuit, feeder, and service loads. This makes it one of
the most important Articles to study and understand.
Is the number of Articles that apply to the calculations of
loads in special applications more than 10 or less than 10 -
Correct Answers ✅[220.3]. More than 10. Table 220.3
shows over two dozen entries, some of which are repeated.
If an application is covered by a special application Article,
does the information in that article replace what you would
otherwise use from Article 220 - Correct Answers
✅[220.3]. No. This is a common source of misunderstanding
and misapplication. These other Articles use Article 220 as
the starting point. In fact, the first four Chapters apply
generally to all installations [Figure 90.3]. Chapters 5 through
7 supplement or modify Chapters 1 through 4 [Figure 90.3].
Is it legal to perform calculations for a 115V circuit - Correct
Answers ✅[220.5(A)]. No.
