An electrical contractor places, installs, erects or connects any electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells or any part thereof, which generate, transmit, transform or utilize electrical energy in any form or for any purpose.
Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)
Content of the Examination
The Electrical (C-10) Examination is divided into five major sections. These sections are:
1. System Evaluation and Design (24%)
Existing system evaluation
Plan and specification interpretation
2. Rough Wiring (25%)
Clearance and accessibility requirements
Raceway and panel installation
Wire and equipment labeling
Grounding and bonding
3. Finish Wiring and Trim (20%)
Finish device placement and installation
Trims and sealants
System energizing and testing
4. Troubleshooting and Repair (13%)
Common electrical problems
Location, repair, and replacement of inoperable electrical wires/components
Selection and use of electrical testing equipment
5. Safety (18%)
Lock out/tag out procedures
Personal protective equipment (PPE)
*Percentages are approximate*
The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.
1. Which of the following colors should NOT be used for current-carrying wires?
2. Which of the following types of conductors may be used as an overhead feeder to a garage?
3. What is the largest number of two-pole circuit breakers that can be used on a lighting and appliance branch circuit panelboard in a single cabinet?
*All questions are written and reviewed by licensed contractors who are actively working in the field*