Colorado Journeyman Wireman Exam Preparation

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Colorado Journeyman Wireman Exam Preparation has been our specialty since 1972. School enrollment is complete with a Home Study Computer Program, Tutoring, and Live Seminars with real questions, answers, code references, and calculations to help you pass your exam on the first try. We provide everything you need to prepare for the actual PSI-administered state licensing exam.

Candidates for State Licensure Must Now Pass an Electrician Exam Administered by PSI Prior to Submitting an Application for an Electrical License.

See the Recommended Steps Listed Below To Familiarize Yourself With the Process:

    1. Study to pass your Colorado electrician exam on the first try with our Home Study Computer Program (Click ADD TO CART above).
    2. Register to take your exam online at www.psiexams.com or call (855) 898-0710.
    3. Schedule an appointment to take the Colorado electrical exam with PSI.
    4. Take and pass the state exam.
      • You must bring two valid forms of identification.
      • Arrive 30 minutes prior to the scheduled examination appointment.
    5. File a license application with the Board at www.colorado.gov/dora/licensing.

 

Colorado Division of Professions and Occupations Online Services (DORA):

Electrical web address: https://dpo.colorado.gov/Electrical

(303) 894-7800

State Electrical Board
1560 Broadway, Suite 1350
Denver, CO 80202

Below Are a Few Practice Questions From Your Upcoming PSI State Exam:

1. What would be the calculated voltage drop on the #6 AWG copper conductors that serve a 15 HP, 480 V three-phase motor? (Assume the voltage source and the load are 150 feet apart and installed in rigid metal conduit.)

  • Correct Answer: NEC – Table 430.250, Chapter 9, Table 8 (Conductor Properties), and Voltage Drop formula. See the calculation steps below.
    • Per Table 430.450, the FLC for the 15 HP 480 V motor is 21 amperes.
    • Per Chapter 9 Table 8, the #6 AWG Circular mils is 26240.
    • Use the Voltage Drop Formula, Vd = (1.732 x K x Length x Ampacity) / kcmil, Vd = (1.732 x 12.9 x 150 feet x 21 amps) / 26240 = 2.68 Volts.

 

2. What is the minimum required feeder tap conductor size for a circuit protected by an 800 ampere OCP device, where the length of the tap conductors is 20 feet, using copper THWN wire?

  • Correct Answer: NEC – 240.21(B)(2)(1) Therefore, calculate: 800 amperes / 3 = 266 amperes, then use Table 310.15(B)(16) 75-degree C (THWN) column to size the feeder tap as 300 kcmil.

 

3. The ampere rating of a feeder that supplies a continuous lighting load and a motor load shall be how many amperes when the lighting load is equivalent to 39 amperes and the motor load is equivalent to 24 amperes?

  • Correct Answer: 430.22, and 600.5(B) Therefore, calculate the total load by: 39 amperes + 24 amperes = 63 amperes, then multiply by 125%. 63 amperes x 1.25 = 78.75 amperes.

  • NEC 2023 (NFPA National Electrical Code)

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Why wait? Contact us or call Daniela Gonzalez today. Click the ADD TO CART button at the top of this page to start your Colorado Journeyman Wireman exam preparation with Prep at Home.