NYC Electrician (CUNY) Exam Practice Test Bank
600 Exam Questions with Verified Answers & Detailed Rationales
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Table of Contents
Part Domain Questions
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I National Electrical Code (NEC) Fundamentals 1–80
II NYC Electrical Code & Amendments 81–140
III Electrical Theory & Calculations 141–230
IV Wiring Methods, Materials & Installation 231–310
V Grounding, Bonding & Overcurrent Protection 311–370
VI Motors, Controls & Transformers 371–430
VII Safety, NFPA 70E & Safe Work Practices 431–480
VIII Blueprint Reading & Schematics 481–520
IX Special Occupancies & Systems 521–560
X Supervision, Administration & Professional Ethics 561–600
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Exam Overview
,Exam Title: NYC Electrician (CUNY) Civil Service Examination — Exam No. 6049 (Open
Competitive) / Exam No. 6523 (Promotional)
Total Questions: 600
Question Type: Multiple Choice
Format: Question + Correct Answer + Detailed Rationale
Exam Content Areas (from official Notice of Examination):
- Repair, Installation, and Maintenance of Electrical Systems
- Single-Phase and Three-Phase Electricity
- AC/DC Circuits, Motors, and Control Systems
- Electrical Safety and Safe Work Practices
- Electrical Drawings, Schematics, Blueprints, and Specifications
- Electrical Calculations, Measuring Instruments, and Meters
- NYC Electrical Code and Installation Requirements
- Fire Alarm, Communications, Lighting, Heat, and Power Systems
- Tools, Materials, Conduit, Raceways, and Wiring Methods
- Supervision, Planning, Administrative Duties, and Professional Ethics
Salary: Current minimum salary is $68.71 per hour for a 35-hour work week
Application Fee: $101.00
Test Date: Multiple-choice testing expected to begin on Tuesday, June 9, 2026
,Governing Code: 2025 New York City Electrical Code (based on the 2020 National Electrical Code
(NEC) with specific NYC amendments, effective December 21, 2025)
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PART I: NATIONAL ELECTRICAL CODE (NEC) FUNDAMENTALS
Questions 1–80
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1. What is the primary purpose of the National Electrical Code (NEC)?
A. To provide electrical design suggestions
B. To ensure minimum safety standards for electrical installations
C. To regulate utility company rates
D. To replace local building codes
Answer: B
Rationale: The NEC establishes minimum safety standards for electrical installations to protect
persons and property from electrical hazards. It is not a design manual or rate-regulating
document, and it does not replace local codes but is typically adopted into them.
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, 2. In the NEC, the words "shall" or "shall not" indicate which type of requirement?
A. A permissive rule
B. An explanatory material
C. A mandatory requirement
D. A recommendation
Answer: C
Rationale: According to Article 90.5, "shall" and "shall not" indicate mandatory requirements,
while "shall be permitted" indicates an allowance. This is a fundamental rule for interpreting the
Code.
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3. The scope of the NEC, as stated in Article 90.1, is:
A. To serve as a design manual for electrical systems
B. To provide an instruction guide for untrained persons
C. For the practical safeguarding of persons and property from hazards arising from the use of
electricity
D. To guarantee the efficiency of electrical equipment
Answer: C
600 Exam Questions with Verified Answers & Detailed Rationales
---
Table of Contents
Part Domain Questions
-------------------------
I National Electrical Code (NEC) Fundamentals 1–80
II NYC Electrical Code & Amendments 81–140
III Electrical Theory & Calculations 141–230
IV Wiring Methods, Materials & Installation 231–310
V Grounding, Bonding & Overcurrent Protection 311–370
VI Motors, Controls & Transformers 371–430
VII Safety, NFPA 70E & Safe Work Practices 431–480
VIII Blueprint Reading & Schematics 481–520
IX Special Occupancies & Systems 521–560
X Supervision, Administration & Professional Ethics 561–600
---
Exam Overview
,Exam Title: NYC Electrician (CUNY) Civil Service Examination — Exam No. 6049 (Open
Competitive) / Exam No. 6523 (Promotional)
Total Questions: 600
Question Type: Multiple Choice
Format: Question + Correct Answer + Detailed Rationale
Exam Content Areas (from official Notice of Examination):
- Repair, Installation, and Maintenance of Electrical Systems
- Single-Phase and Three-Phase Electricity
- AC/DC Circuits, Motors, and Control Systems
- Electrical Safety and Safe Work Practices
- Electrical Drawings, Schematics, Blueprints, and Specifications
- Electrical Calculations, Measuring Instruments, and Meters
- NYC Electrical Code and Installation Requirements
- Fire Alarm, Communications, Lighting, Heat, and Power Systems
- Tools, Materials, Conduit, Raceways, and Wiring Methods
- Supervision, Planning, Administrative Duties, and Professional Ethics
Salary: Current minimum salary is $68.71 per hour for a 35-hour work week
Application Fee: $101.00
Test Date: Multiple-choice testing expected to begin on Tuesday, June 9, 2026
,Governing Code: 2025 New York City Electrical Code (based on the 2020 National Electrical Code
(NEC) with specific NYC amendments, effective December 21, 2025)
---
PART I: NATIONAL ELECTRICAL CODE (NEC) FUNDAMENTALS
Questions 1–80
---
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To provide electrical design suggestions
B. To ensure minimum safety standards for electrical installations
C. To regulate utility company rates
D. To replace local building codes
Answer: B
Rationale: The NEC establishes minimum safety standards for electrical installations to protect
persons and property from electrical hazards. It is not a design manual or rate-regulating
document, and it does not replace local codes but is typically adopted into them.
---
, 2. In the NEC, the words "shall" or "shall not" indicate which type of requirement?
A. A permissive rule
B. An explanatory material
C. A mandatory requirement
D. A recommendation
Answer: C
Rationale: According to Article 90.5, "shall" and "shall not" indicate mandatory requirements,
while "shall be permitted" indicates an allowance. This is a fundamental rule for interpreting the
Code.
---
3. The scope of the NEC, as stated in Article 90.1, is:
A. To serve as a design manual for electrical systems
B. To provide an instruction guide for untrained persons
C. For the practical safeguarding of persons and property from hazards arising from the use of
electricity
D. To guarantee the efficiency of electrical equipment
Answer: C
