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State Example Questions

C-10 Electrical

NOTE: All questions are written and reviewed by licensed contractors who are actively working in the field.

The following questions are typical of the kind 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?

    • a. red
    • b. black
    • c. green
    • d. white

  2. Which of the following types of conductors may be used as an overhead feeder to a garage?

    • a. THHN
    • b. THWN
    • c. MTW
    • d. UF

  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?

    • a. 14
    • b. 21
    • c. 34
    • d. 42