ICC Residential Electrical Study Questions E1 | Latest Version | 2024/2025 | Graded A+
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Course
ICC Residential Electrical Study
Institution
ICC Residential Electrical Study
ICC Residential Electrical Study
Questions E1 | Latest Version |
2024/2025 | Graded A+
What is the purpose of a ground fault circuit interrupter (GFCI)?
A GFCI is designed to protect against electrical shock by interrupting the circuit when it
detects an imbalance between incoming and outgo...
ICC Residential Electrical Study
Questions E1 | Latest Version |
2024/2025 | Graded A+
What is the purpose of a ground fault circuit interrupter (GFCI)?
✔✔ A GFCI is designed to protect against electrical shock by interrupting the circuit when it
detects an imbalance between incoming and outgoing current.
What is the minimum clearance required between overhead service conductors and the ground in
residential installations?
✔✔ The minimum clearance required is typically 10 feet, but this can vary depending on local
codes and conditions.
How should electrical wiring be sized for a residential circuit?
✔✔ Electrical wiring should be sized based on the current-carrying capacity needed for the
specific load, considering the ampacity charts and the type of insulation used.
What is the significance of a bonding jumper in electrical systems?
✔✔ A bonding jumper connects metal parts to ensure electrical continuity and safety, reducing
the risk of electric shock or fire.
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,What are the requirements for installing electrical outlets in residential garages?
✔✔ Electrical outlets in garages must be GFCI-protected and installed at least 12 inches above
the floor to minimize exposure to moisture.
How does the NEC define a dwelling unit?
✔✔ A dwelling unit is defined as a single unit providing complete, independent living facilities
for one or more persons, including provisions for sleeping, cooking, and sanitation.
What is the purpose of a service entrance conductors?
✔✔ Service entrance conductors are responsible for bringing electricity from the utility supply to
the main service panel of a building.
What is the role of the main breaker in a residential electrical panel?
✔✔ The main breaker serves as the primary disconnecting means for the electrical service,
allowing for the safe shutdown of all circuits in the panel.
What are the requirements for outdoor electrical installations?
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, ✔✔ Outdoor electrical installations must use weather-resistant materials, have proper grounding,
and comply with NEC guidelines for protection against moisture and physical damage.
How is a load calculation performed for a residential service?
✔✔ A load calculation is performed by summing the wattage of all fixed appliances, lighting,
and other electrical loads to determine the total demand on the service.
What safety measures should be taken when working with electrical panels?
✔✔ Safety measures include wearing personal protective equipment (PPE), using insulated
tools, and ensuring that the panel is de-energized before starting work.
What is the purpose of an AFCI (arc-fault circuit interrupter) in residential wiring?
✔✔ An AFCI is designed to detect and interrupt arc faults that could lead to electrical fires,
providing an added layer of safety in residential circuits.
What are the guidelines for installing smoke alarms in residential buildings?
✔✔ Smoke alarms should be installed on every level of the home, inside each sleeping area, and
outside each separate sleeping area, following local code requirements.
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