#1
What does NEC stand for in the context of electrical installations?
National Electrical Code
ExplanationSpecifies standards for electrical installations.
#2
Which organization publishes the National Electrical Code?
National Fire Protection Association
ExplanationResponsible for publishing and updating the NEC.
#3
What is the purpose of the NEC?
To ensure electrical installations are safe and reliable
ExplanationEnsures safety and reliability in electrical installations.
#4
What is the standard voltage for residential electrical systems in the United States?
120 volts
ExplanationStandard voltage for residential systems.
#5
What is the purpose of grounding in electrical systems?
To provide a path for fault current to safely dissipate
ExplanationSafely redirects fault current.
#6
Which of the following is NOT a requirement of the NEC for electrical installations?
Installation of smoke detectors
ExplanationSmoke detector installation not mandated by NEC.
#7
What is the purpose of an AFCI (Arc-Fault Circuit Interrupter)?
To protect against arc faults
ExplanationDetects and interrupts arc faults.
#8
Which of the following is a key safety consideration in electrical installations?
Avoiding overloading circuits
ExplanationPrevent overloading for safety.
#9
When should an electrical inspection be conducted?
After the electrical work is completed
ExplanationInspections after work completion.
#10
Which of the following is NOT a NEC requirement for electrical equipment?
Equipment must be painted a specific color
ExplanationColor specification not in NEC.
#11
Which of the following is NOT a type of electrical conductor?
Steel
ExplanationSteel is not a type of conductor.
#12
What is the purpose of NEC Article 250?
To specify grounding and bonding requirements
ExplanationGrounding and bonding specifications.
#13
Which of the following is a requirement for electrical panels according to the NEC?
Accessible location
ExplanationAccessibility requirement for panels.