Colorado Journeyman Wireman Practice Exam 2026 Complete 90 Questions

COLORADO JOURNEYMAN

WIREMAN PRACTICE

EXAM 2026 COMPLETE 90

QUESTIONS

Question 1: A listed piece of electrical equipment is installed in a manner that con�icts with the instructions included in its listing and labeling. What is the best conclusion?

Choices:

1) The installation is acceptable if the equipment is indoors 2) The installation is acceptable if the conductor ampacity is adequate 3) The installation is not compliant because listed or labeled equipment must be installed and used in accordance with its instructions 4) Only the equipment grounding conductor must follow the listing instructions Correct Answer: The installation is not compliant because listed or labeled equipment must be installed and used in accordance with its instructions Explanation: Listed or labeled equipment must be installed and used in accordance with the instructions included in the listing or labeling. Deviating from those instructions can defeat the conditions under which the equipment was evaluated.Page 1

Question 2: For electrical equipment rated 1000 volts or less, what is the minimum width of required working space in front of the equipment?

Choices:

1) 36 inches in all cases 2) 48 inches in all cases 3) 30 inches or the width of the equipment, whichever is greater 4) 24 inches

Correct Answer: 30 inches or the width of the equipment, whichever is greater

Explanation: The working-space width is at least 30 inches or the width of the equipment, whichever is greater. The space does not have to be centered on the equipment.Question 3: In a typical installation, what minimum working-space height must be maintained in front of electrical equipment rated 1000 volts or less?

Choices:

1) 7 feet in every installation 2) 6 feet 6 inches or the height of the equipment, whichever is greater 3) 6 feet 4) 6 feet 3 inches Correct Answer: 6 feet 6 inches or the height of the equipment, whichever is greater Explanation: The required working-space height is generally 6 feet 6 inches or the height of the equipment, whichever is greater, subject to speci�c exceptions.Page 2

Question 4: When the 2026 NEC requires equipment to be within sight of another

piece of equipment or a building, what is the maximum distance that still quali�es as within sight?

Choices:

1) 50 feet 2) 40 feet 3) 75 feet 4) 25 feet

Correct Answer: 50 feet

Explanation: Under the 2026 NEC, within sight means visible and not more than 50 feet from the building, structure, or other equipment.

Question 5: On a-volt, 3-phase, 4-wire wye system, what voltage is normally

measured from an ungrounded phase conductor to the grounded neutral conductor?

Choices:

1) 240 volts 2) 208 volts 3) 277 volts 4) 120 volts

Correct Answer: 120 volts

Explanation: For a-volt wye system, the phase-to-neutral voltage is 120 volts and the phase-to-phase voltage is 208 volts.Page 3