Residential Electrical Inspector (E1) Practice Exam

Residential Electrical Inspector (E1) Practice Exam

About Residential Electrical Inspector (E1) Practice Exam

The Residential Electrical Inspector exam evaluates your ability to inspect and assess the installation and modification of electrical systems, both indoors and outdoors, for one- and two-family homes. This includes services, conductors, equipment, components, fixtures, appliances, devices, and electrical appurtenances with a voltage limit of 120/240 volts, single phase, up to 400 amperes.

Exam Overview

• Exam Name: Residential Electrical Inspector
• Exam ID: E1
• Exam Type: National/All
• Category: Electrical, Residential Inspector
• Code Year: 2018
• Total Questions: 60
• Exam Duration: 2 hours
• Exam Format: Open Book

Course Structure

The Residential Electrical Inspector (E1) Exam covers the following topics - 

Domain 1 - Understanding General Requirements (10%)

• Project Administration: Ensure that all necessary permits are issued and valid, and verify that approved plans and specifications are available as required.
• Public Information and Legal: Use proper terminology to communicate the intent of the code, answer general code compliance questions, and ensure the suitability of materials used according to their listings and labels. Maintain inspection reports and issue necessary notices and certificates.

Domain 2 - Understanding Electrical Theory (2%)

• Clearances and Guarding: Determine the necessary working clearances, access, and guarding for electrical installations.
• Connections and Splices: Verify that conductor connections, splices, and terminal identifications meet code requirements.
• Conductors: Inspect conductors to ensure correct use, type, insulation, markings, and ampacity.

Domain 3- Understanding Services (17%)

• Service Size and Rating: Inspect services for appropriate conductor ampacity, clearances, location, materials, and equipment.
• Service Grounding and Bonding: Verify the size and type of conductors and electrodes, including their location and installation.

Domain 4 - Understanding Branch Circuit and Feeder Requirements (28%)

• Feeders: Inspect feeders to confirm the proper size, clearances, location, materials, and grounding conductors.
• Branch Circuit and Feeder Calculations: Ensure that branch circuits and feeders can handle the load according to code provisions.
• Branch Circuit Ratings and Overcurrent Protection: Confirm correct size, type, location, and installation of overcurrent devices.
• Required Branch Circuits: Verify that all required branch circuits are in place.
• Panelboards: Ensure proper rating, circuit identification, overcurrent protection, and installation of panelboards.

Domain 5 - Understanding Wiring Methods And Power and Lighting Distribution (21%)

• Installation Methods: Ensure that all conductors, cables, raceways, and fittings are installed according to code. Verify that underground wiring meets requirements.
• Branch Circuit Required Outlets: Confirm that receptacles, lighting outlets, and switches are installed in all required locations.
• Branch Circuits - GFCI: Ensure that ground-fault circuit interrupter protection is installed where required.
• Boxes and Enclosures: Verify that boxes are correctly sized, of the proper type, and properly installed.
• Equipment Grounding: Confirm that equipment bonding and grounding conductor sizes, connections, and installations are correct.
• Flexible Cords: Verify the correct use and sizing of flexible cords.
• Class 2 Circuits: Inspect low-voltage control wiring, Class 2 circuits, and fire alarm circuits.

Domain 6 - Understanding Devices, Lighting Fixtures, and Appliances (19%)

• Switches and Receptacles: Verify that switches and receptacles are of the correct type and rating and are properly installed.
• Light Fixtures: Confirm that light fixtures and fixture wires are of the correct type and rating and properly installed.
• Appliances: Inspect appliance wiring and equipment to ensure correct type, use, installation, and the presence of disconnecting means.
• Heating and Cooling Equipment: Inspect wiring and equipment for space heating, cooling, air conditioning, and refrigeration to ensure proper installation and type.

Domain 7 - Understanding Swimming Pools and Similar Installations (5%)

• Swimming Pool Wiring: Verify the correct installation of wiring for swimming pools, spas, hot tubs, hydromassage bathtubs, and similar installations.

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• Full-Length Mock Test with unique questions in each test set
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What are our Practice Exams?

• Practice exams have been designed by professionals and domain experts that simulate real-time exam scenario.
• Practice exam questions have been created on the basis of content outlined in the official documentation.
• Each set in the practice exam contains unique questions built with the intent to provide real-time experience to the candidates as well as gain more confidence during exam preparation.
• Practice exams help to self-evaluate against the exam content and work towards building strength to clear the exam.
• You can also create your own practice exam based on your choice and preference 

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