Chapter 1: General Requirements
What is the primary purpose of the National Electrical Code (NEC)?
A) To standardize electrical appliance manufacturing
B) To provide guidelines for the safe installation of electrical systems
C) To regulate the cost of electrical services
D) To promote the use of renewable energy sources
Answer: B) To provide guidelines for the safe installation of electrical systems
Which section of the NEC provides definitions and general requirements for
electrical installations?
,A) Article 100
B) Article 200
C) Article 300
D) Article 400
Answer: A) Article 100
Chapter 2: Wiring and Protection
What is the minimum size of a grounding conductor for a 200-amp service according
to NEC standards?
A) 8 AWG
B) 6 AWG
C) 4 AWG
D) 2 AWG
Answer: B) 6 AWG
Which type of cable is generally used for residential wiring?
A) PVC conduit
B) NM-B cable
C) EMT conduit
D) MC cable
Answer: B) NM-B cable
Chapter 3: Wiring Methods and Materials
Which type of conduit is suitable for outdoor and wet locations?
A) EMT
B) PVC
C) Rigid metal conduit
D) Flexible metal conduit
, Answer: B) PVC
What is the maximum allowable length for a single run of flexible conduit without
support according to NEC?
A) 3 feet
B) 4 feet
C) 6 feet
D) 8 feet
Answer: C) 6 feet
Chapter 4: Equipment for General Use
Which type of circuit breaker provides protection against both overloads and short
circuits?
A) Standard circuit breaker
B) AFCI breaker
C) GFCI breaker
D) Dual function breaker
Answer: A) Standard circuit breaker
Where should the service disconnecting means be located in a dwelling unit?
A) At the main electrical panel
B) Within sight of the service entrance
C) At the nearest accessible location
D) In a dedicated outdoor enclosure
Answer: B) Within sight of the service entrance
Chapter 5: Special Occupancies
In a commercial kitchen, what type of outlet is required for countertop surfaces?
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