1
|P a g
BN BN BN BN BN
e
TABLE OFBNCONTENTS
BN
Unit 1 Competency Test ............................................................................................................ 1
BN BN BN
UNIT1COMPETENCY TEST BN
1. The National Fire Protection Association has acted as sponsor of the
BN BN BN BN BN BN BN BN BN BN
National Electrical Code since .
BN BN BN
a. NEC®Reference: Page 1 BN BN
b. Answer:1911
2. Informative Annex BN BN
provides a list of productsafetystandards us BN BN BN BN BN
ed for product listing where that listing is required by the NEC.
BN BN BN BN BN BN BN BN BN BN BN
,2
|P a g
BN BN BN BN BN a. NEC®Reference:InformativeAnnexA
e b. Answer:A
3. Which chapters in the NEC apply generally to all installations?
BN BN BN BN BN BN BN BN BN
a. NEC®Reference: 90.3 BN
b. Answer: Chapters 1, 2, 3, and 4 BN BN BN BN BN BN
4. Every BN three years, the National Electrical Code is revised, but the Code has only
BN BN BN BN BN BN BN BN BN BN BN BN B
been N BN on a three- year revision cycle since .
BN BN BN BN BN BN BN
a. NEC®Reference: Page 1 BN BN
b. Answer:1975
5. The purpose of the National Electrical Code is the practical safeguarding of
BN BN BN BN BN BN BN BN BN BN BN BN
BN from hazards arising from the use of electricity.
BN BN BN BN BN BN BN
a. NEC®Reference:personsand property BN
b. Answer:90.2(A)
6. The original Code document was developed
BN BN BN BN BN BN
in as aresult of th BN BN BN BN
e united efforts of various insurance, electrical, architectural, and allied int
BN BN BN BN BN BN BN BN BN BN
erests.
a. NEC®Reference: Page 1 BN BN
b. Answer:1897
,3
|P a g
BN BN BN BN BN
e 7. Informative annexes are not part of the requirements of the NEC but are included f
BN BN BN BN BN BN BN BN BN BN BN BN BN BN
or
only.
a. NEC®Reference: 90.3 BN
b. Answer: informational purposes
BN BN
8. What city was home to the first central-
BN BN BN BN BN BN BN
station electric generating plant developed by Thomas A. Edison
BN BN BN BN BN BN BN BN
?
a. NEC®Reference: Page 2 BN BN
b. Answer: New York City BN BN BN
9. Chapter BN consists of tables that are applicable as referenced. BN BN BN BN BN BN BN
a. NEC®Reference: 90.3 BN
b. Answer:9
10. In the NEC, UL is the abbreviation for
B N BN BN .
BN BN BN B N BN
a. NEC®Reference:Annex I, footnote under Table I.3 BN BN BN BN BN
b. Answer: Underwriters Laboratories BN BN
11. Equipment that is listed, labeled, or both, or identified for a use shall be in
BN BN BN BN BN BN BN BN BN BN BN BN BN BN
stalled and used in accordance with any
BN BN BN BN BN BN BN
included in the listing, labelin BN BN BN BN
g, or identification.
BN BN
a. NEC®Reference: 110.3(B) BN
b. Answer:instructions
, 3 |P a g e
BN BN BN BN BN
Solutionand AnswerGuide B N
MILLER/SANDEFUR, ILLUSTRATED GUIDE BN B N B N TOB N THEB N NEC®, 21E, ©2024, 978035 BN BN BN
7766712; UNIT 2: DEFINITIONS® BN B N BN
TABLE OFBNCONTENTS
BN
Unit 2 Competency Test ............................................................................................................ 1
BN BN BN
UNIT2COMPETENCY TEST BN
1. A(n) BN
branch circuit supplies two or more receptacles BN BN BN BN BN BN B
Nor outlets for lighting and appliances.
BN BN BN BN BN
a. NEC®Reference:Article100 (Branch-Circuit,GeneralPurpose) BN
b. Answer:generalpurpose
2.
is the largest amount of current capable of being delivered
BN BN BN BN BN BN BN BN BN BN
at a point on the electrical system during a short-circuit condition.
BN BN BN BN BN BN BN BN BN BN
a. NEC®Reference: Article 100 (Fault Current, Available) BN BN BN BN
b. Answer: Available faultcurrent BN BN
3. A(n) BN
branch circuit consists of two or more ungrounded BN BN BN BN BN BN BN BN
conductors having a potential difference between them, and a grounded cond
BN BN BN BN BN BN BN BN BN BN
uctor having equal potential difference between it and each ungrounded cond
BN BN BN BN BN BN BN BN BN BN
uctor of the circuit and that is connected to the neutral or grounded conduct
BN BN BN BN BN BN BN BN BN BN BN BN BN
or of the system.
BN BN BN
a. NEC®Reference: multiwire BN
b. Answer: Article100 (Branch-Circuit,Multiwire)BN BN
4. An intermittent operation in which load conditions are regularly recurr
BN BN BN BN BN BN BN BN BN
ent is the definition of .
BN BN BN BN BN
a. NEC®Reference:Article100(Duty,Periodic)
b. Answer:periodic duty
5. The BN is theconnection between the grounded- BN BN BN BN
circuit conductor and the equipment grounding conductor at the service.
BN BN BN BN BN BN BN BN BN
a. NEC®Reference: Article 100 (Bonding Jumper, Main) BN BN BN BN
b. Answer: mainbonding jumper BN BN
|P a g
BN BN BN BN BN
e
TABLE OFBNCONTENTS
BN
Unit 1 Competency Test ............................................................................................................ 1
BN BN BN
UNIT1COMPETENCY TEST BN
1. The National Fire Protection Association has acted as sponsor of the
BN BN BN BN BN BN BN BN BN BN
National Electrical Code since .
BN BN BN
a. NEC®Reference: Page 1 BN BN
b. Answer:1911
2. Informative Annex BN BN
provides a list of productsafetystandards us BN BN BN BN BN
ed for product listing where that listing is required by the NEC.
BN BN BN BN BN BN BN BN BN BN BN
,2
|P a g
BN BN BN BN BN a. NEC®Reference:InformativeAnnexA
e b. Answer:A
3. Which chapters in the NEC apply generally to all installations?
BN BN BN BN BN BN BN BN BN
a. NEC®Reference: 90.3 BN
b. Answer: Chapters 1, 2, 3, and 4 BN BN BN BN BN BN
4. Every BN three years, the National Electrical Code is revised, but the Code has only
BN BN BN BN BN BN BN BN BN BN BN BN B
been N BN on a three- year revision cycle since .
BN BN BN BN BN BN BN
a. NEC®Reference: Page 1 BN BN
b. Answer:1975
5. The purpose of the National Electrical Code is the practical safeguarding of
BN BN BN BN BN BN BN BN BN BN BN BN
BN from hazards arising from the use of electricity.
BN BN BN BN BN BN BN
a. NEC®Reference:personsand property BN
b. Answer:90.2(A)
6. The original Code document was developed
BN BN BN BN BN BN
in as aresult of th BN BN BN BN
e united efforts of various insurance, electrical, architectural, and allied int
BN BN BN BN BN BN BN BN BN BN
erests.
a. NEC®Reference: Page 1 BN BN
b. Answer:1897
,3
|P a g
BN BN BN BN BN
e 7. Informative annexes are not part of the requirements of the NEC but are included f
BN BN BN BN BN BN BN BN BN BN BN BN BN BN
or
only.
a. NEC®Reference: 90.3 BN
b. Answer: informational purposes
BN BN
8. What city was home to the first central-
BN BN BN BN BN BN BN
station electric generating plant developed by Thomas A. Edison
BN BN BN BN BN BN BN BN
?
a. NEC®Reference: Page 2 BN BN
b. Answer: New York City BN BN BN
9. Chapter BN consists of tables that are applicable as referenced. BN BN BN BN BN BN BN
a. NEC®Reference: 90.3 BN
b. Answer:9
10. In the NEC, UL is the abbreviation for
B N BN BN .
BN BN BN B N BN
a. NEC®Reference:Annex I, footnote under Table I.3 BN BN BN BN BN
b. Answer: Underwriters Laboratories BN BN
11. Equipment that is listed, labeled, or both, or identified for a use shall be in
BN BN BN BN BN BN BN BN BN BN BN BN BN BN
stalled and used in accordance with any
BN BN BN BN BN BN BN
included in the listing, labelin BN BN BN BN
g, or identification.
BN BN
a. NEC®Reference: 110.3(B) BN
b. Answer:instructions
, 3 |P a g e
BN BN BN BN BN
Solutionand AnswerGuide B N
MILLER/SANDEFUR, ILLUSTRATED GUIDE BN B N B N TOB N THEB N NEC®, 21E, ©2024, 978035 BN BN BN
7766712; UNIT 2: DEFINITIONS® BN B N BN
TABLE OFBNCONTENTS
BN
Unit 2 Competency Test ............................................................................................................ 1
BN BN BN
UNIT2COMPETENCY TEST BN
1. A(n) BN
branch circuit supplies two or more receptacles BN BN BN BN BN BN B
Nor outlets for lighting and appliances.
BN BN BN BN BN
a. NEC®Reference:Article100 (Branch-Circuit,GeneralPurpose) BN
b. Answer:generalpurpose
2.
is the largest amount of current capable of being delivered
BN BN BN BN BN BN BN BN BN BN
at a point on the electrical system during a short-circuit condition.
BN BN BN BN BN BN BN BN BN BN
a. NEC®Reference: Article 100 (Fault Current, Available) BN BN BN BN
b. Answer: Available faultcurrent BN BN
3. A(n) BN
branch circuit consists of two or more ungrounded BN BN BN BN BN BN BN BN
conductors having a potential difference between them, and a grounded cond
BN BN BN BN BN BN BN BN BN BN
uctor having equal potential difference between it and each ungrounded cond
BN BN BN BN BN BN BN BN BN BN
uctor of the circuit and that is connected to the neutral or grounded conduct
BN BN BN BN BN BN BN BN BN BN BN BN BN
or of the system.
BN BN BN
a. NEC®Reference: multiwire BN
b. Answer: Article100 (Branch-Circuit,Multiwire)BN BN
4. An intermittent operation in which load conditions are regularly recurr
BN BN BN BN BN BN BN BN BN
ent is the definition of .
BN BN BN BN BN
a. NEC®Reference:Article100(Duty,Periodic)
b. Answer:periodic duty
5. The BN is theconnection between the grounded- BN BN BN BN
circuit conductor and the equipment grounding conductor at the service.
BN BN BN BN BN BN BN BN BN
a. NEC®Reference: Article 100 (Bonding Jumper, Main) BN BN BN BN
b. Answer: mainbonding jumper BN BN