Free practice test — 12 questions with full explanations
Original CraftPATH practice questions. These are not real exam questions. Every answer includes the reasoning, why each wrong option fails, the code area it comes from, and the misconception it targets.
Question 1. Electrician licensing in Colorado is administered by:
Colorado Law, Board Rules and Scope · Medium · Objective: Identify the licensing authority and its reach.
- A. Each municipality independently
- B. The Colorado State Electrical Board, with statewide license recognition (correct)
- C. The county building department where the work occurs
- D. A private testing company with no state oversight
Correct answer: B. The Colorado State Electrical Board, with statewide license recognition
Why this is right: Colorado licenses electricians at the state level through the State Electrical Board. The license is recognized statewide, so an electrician does not need a separate card for each city, though local permits and inspections still apply.
Why the other options are wrong:
- A. Each municipality independently — Colorado deliberately preempted municipal electrician licensing.
- C. The county building department where the work occurs — Counties issue permits but do not license electricians.
- D. A private testing company with no state oversight — A vendor may deliver the exam, but the board sets the requirements.
Where this shows up on the job: Statewide licensure is why Colorado electricians can move between Denver, Colorado Springs and mountain towns without relicensing.
Code reference: Colorado State Electrical Board
Common misconception: Assuming Colorado works like states with city-by-city licensing.
Question 2. Compared with a journeyman license, a Colorado residential wireman license:
Colorado Law, Board Rules and Scope · Medium · Objective: Distinguish residential wireman from journeyman scope.
- A. Has an identical scope of work
- B. Is limited to residential occupancies within the scope defined by board rule (correct)
- C. Permits unsupervised commercial and industrial work
- D. Allows a person to register as an electrical contractor without a master
Correct answer: B. Is limited to residential occupancies within the scope defined by board rule
Why this is right: The residential wireman tier is a narrower credential limited to residential work as defined by board rule. The journeyman license carries the broader scope covering commercial and industrial installations.
Why the other options are wrong:
- A. Has an identical scope of work — The two tiers differ specifically in scope.
- C. Permits unsupervised commercial and industrial work — Commercial and industrial work is outside the residential wireman scope.
- D. Allows a person to register as an electrical contractor without a master — Contractor registration requires a master electrician.
Where this shows up on the job: Working beyond your tier is a disciplinary matter and can void the permit on the job.
Code reference: Colorado State Electrical Board rules
Common misconception: Treating residential wireman as a junior journeyman with the same scope.
Question 3. The dedicated equipment space above a panelboard extends from the top of the equipment to:
General Requirements and Code Navigation · Medium · Objective: Apply dedicated equipment space requirements.
- A. The finished ceiling in every case
- B. 6 feet above the equipment or to the structural ceiling, whichever is lower (correct)
- C. 3 feet above the equipment
- D. The nearest joist
Correct answer: B. 6 feet above the equipment or to the structural ceiling, whichever is lower
Why this is right: The dedicated space extends the width and depth of the equipment from the floor to a height of 6 feet above the equipment or to the structural ceiling, whichever is lower. Foreign systems such as piping and ducts may not occupy that zone.
Why the other options are wrong:
- A. The finished ceiling in every case — A suspended ceiling does not define the limit; the structural ceiling does.
- C. 3 feet above the equipment — 3 feet understates the required space.
- D. The nearest joist — Joist location is not the code criterion.
Where this shows up on the job: Sprinkler and duct runs above panels are among the most common coordination conflicts on commercial jobs.
Code reference: NEC 110.26(E)
Common misconception: Measuring the dedicated space to a dropped ceiling.
Question 4. A continuous load of 40 amperes requires an overcurrent device rated at least:
Branch Circuits, Feeders and Load Calculations · Hard · Objective: Apply the continuous load multiplier.
- A. 40 amperes
- B. 50 amperes (correct)
- C. 45 amperes
- D. 60 amperes
Correct answer: B. 50 amperes
Why this is right: A continuous load must be multiplied by 125 percent for branch circuit and overcurrent device sizing. Forty amperes times 1.25 gives 50 amperes, which is a standard device rating.
Why the other options are wrong:
- A. 40 amperes — 40 amperes ignores the continuous load multiplier.
- C. 45 amperes — 45 amperes is below the calculated 50 amperes.
- D. 60 amperes — 60 amperes exceeds what the calculation requires.
Where this shows up on the job: A continuous load is one expected to run for three hours or more, which covers most commercial lighting.
Code reference: NEC 210.20(A) and 215.2
Common misconception: Sizing continuous loads at 100 percent.
Question 5. The general lighting load for a dwelling unit is calculated using a unit load of:
Branch Circuits, Feeders and Load Calculations · Hard · Objective: Apply the dwelling general lighting load.
- A. 1 volt-ampere per square foot
- B. 3 volt-amperes per square foot (correct)
- C. 5 volt-amperes per square foot
- D. 10 volt-amperes per square foot
Correct answer: B. 3 volt-amperes per square foot
Why this is right: Dwelling general lighting and general-use receptacles are calculated at 3 volt-amperes per square foot of floor area, computed from outside dimensions and excluding unfinished spaces not adaptable for future use.
Why the other options are wrong:
- A. 1 volt-ampere per square foot — 1 volt-ampere per square foot applies to certain storage occupancies.
- C. 5 volt-amperes per square foot — 5 volt-amperes per square foot is not the dwelling value.
- D. 10 volt-amperes per square foot — 10 volt-amperes per square foot is not the dwelling value.
Where this shows up on the job: Getting the area wrong at the start throws off the entire service calculation.
Code reference: NEC 220.12 and Table 220.12
Common misconception: Counting an unfinished, non-adaptable basement in the area.
Question 6. Where equipment is rated for 75 degree terminations and the conductor is rated 90 degrees, the final ampacity used must not exceed:
Conductors, Ampacity and Overcurrent Protection · Hard · Objective: Apply the termination temperature limitation.
- A. The 90 degree value
- B. The 75 degree value (correct)
- C. The 60 degree value
- D. The average of the 75 and 90 degree values
Correct answer: B. The 75 degree value
Why this is right: The 90 degree rating may be used for ambient correction and conductor-count adjustment, but the final ampacity is limited by the lowest-rated termination in the circuit, here 75 degrees.
Why the other options are wrong:
- A. The 90 degree value — Using the 90 degree value would overheat the terminations.
- C. The 60 degree value — The 60 degree column applies only where terminations are rated 60 degrees.
- D. The average of the 75 and 90 degree values — Averaging temperature columns is not a code method.
Where this shows up on the job: Terminations, not the conductor insulation, usually set the practical limit on a feeder.
Code reference: NEC 110.14(C) and 310.15
Common misconception: Sizing to conductor insulation and ignoring the lug rating.
Question 7. Seven current-carrying conductors in a single raceway require an adjustment factor of:
Conductors, Ampacity and Overcurrent Protection · Hard · Objective: Apply conductor-count adjustment factors.
- A. 80 percent
- B. 70 percent (correct)
- C. 50 percent
- D. No adjustment
Correct answer: B. 70 percent
Why this is right: Where four to six current-carrying conductors share a raceway the factor is 80 percent; from seven through nine it drops to 70 percent because bundled conductors cannot shed heat.
Why the other options are wrong:
- A. 80 percent — 80 percent covers four through six conductors.
- C. 50 percent — 50 percent applies to ranges well above nine conductors.
- D. No adjustment — Adjustment is required above three current-carrying conductors.
Where this shows up on the job: Neutrals on a three-phase four-wire wye with significant harmonic content count as current-carrying.
Code reference: NEC Table 310.15(C)(1)
Common misconception: Counting equipment grounding conductors as current-carrying.
Question 8. The total bends in a raceway run between pull points must not exceed:
Wiring Methods, Boxes and Raceways · Medium · Objective: Apply the bend limit between pull points.
- A. 180 degrees
- B. 360 degrees (correct)
- C. 270 degrees
- D. 450 degrees
Correct answer: B. 360 degrees
Why this is right: No run between pull points may contain more than the equivalent of four quarter bends, a total of 360 degrees, because additional bends make conductor pulling forces high enough to damage insulation.
Why the other options are wrong:
- A. 180 degrees — 180 degrees is more restrictive than the code requires.
- C. 270 degrees — 270 degrees is not the code limit.
- D. 450 degrees — 450 degrees exceeds the limit.
Where this shows up on the job: Offsets and kicks count toward the total, which is why long runs need intermediate pull boxes.
Code reference: NEC 358.26 and equivalent article sections
Common misconception: Counting only 90 degree elbows toward the total.
Question 9. In box fill calculations, all equipment grounding conductors in a box together count as:
Wiring Methods, Boxes and Raceways · Hard · Objective: Apply box fill volume allowances.
- A. One conductor volume each
- B. A single conductor volume based on the largest grounding conductor (correct)
- C. No volume at all
- D. Two conductor volumes regardless of count
Correct answer: B. A single conductor volume based on the largest grounding conductor
Why this is right: All equipment grounding conductors in a box count collectively as a single conductor volume, based on the largest one present, because they are bonded together and occupy space as a group.
Why the other options are wrong:
- A. One conductor volume each — Counting each one individually overstates the fill.
- C. No volume at all — Grounding conductors do occupy volume and must be counted.
- D. Two conductor volumes regardless of count — A flat two-volume allowance is not the rule.
Where this shows up on the job: Device yokes, clamps and support fittings each carry their own allowances in the same calculation.
Code reference: NEC 314.16(B)(5)
Common misconception: Ignoring grounding conductors entirely in box fill.
Question 10. The grounded conductor and the equipment grounding conductor may be bonded together:
Grounding, Bonding, Services, Motors and Special Systems · Hard · Objective: Apply the neutral-to-ground bonding rule.
- A. At every subpanel in the building
- B. At the service disconnecting means, and at separately derived systems as permitted (correct)
- C. At every junction box
- D. Never, under any condition
Correct answer: B. At the service disconnecting means, and at separately derived systems as permitted
Why this is right: The main bonding jumper connects the grounded conductor to the equipment grounding system at the service disconnect. Downstream, the two must remain separate so normal neutral current does not travel on the grounding system.
Why the other options are wrong:
- A. At every subpanel in the building — Bonding at subpanels puts neutral current on metal enclosures and conduit.
- C. At every junction box — Junction boxes are never a bonding point for the neutral.
- D. Never, under any condition — Bonding is required at the service.
Where this shows up on the job: A bonded subpanel neutral is a frequent inspection failure in remodels and detached-structure feeders.
Code reference: NEC 250.24 and 250.142
Common misconception: Believing extra neutral-to-ground bonds improve safety.
Question 11. Branch circuit conductors supplying a single continuous-duty motor must have an ampacity of at least:
Grounding, Bonding, Services, Motors and Special Systems · Hard · Objective: Apply motor conductor sizing.
- A. 100 percent of the nameplate full-load current
- B. 125 percent of the motor full-load current from the applicable NEC table (correct)
- C. 80 percent of the locked-rotor current
- D. 250 percent of the nameplate current
Correct answer: B. 125 percent of the motor full-load current from the applicable NEC table
Why this is right: Motor branch circuit conductors are sized at 125 percent of the full-load current value from the NEC motor tables, not the nameplate. The nameplate is used for overload protection sizing.
Why the other options are wrong:
- A. 100 percent of the nameplate full-load current — Nameplate current at 100 percent is the overload basis, not the conductor basis.
- C. 80 percent of the locked-rotor current — Locked-rotor current governs short-circuit device selection considerations, not conductor ampacity.
- D. 250 percent of the nameplate current — 250 percent relates to certain short-circuit device maximums.
Where this shows up on the job: Table current for conductors, nameplate current for overloads is the distinction exams test hardest.
Code reference: NEC 430.6, 430.22 and 430.32
Common misconception: Using nameplate current to size motor conductors.
Question 12. GFCI protection is required for 125 volt receptacles in a dwelling located in:
Grounding, Bonding, Services, Motors and Special Systems · Medium · Objective: Apply GFCI requirements in dwellings.
- A. Bedrooms only
- B. Bathrooms, garages, outdoors, crawl spaces, unfinished basements, kitchens and near sinks (correct)
- C. Living rooms only
- D. Only where the receptacle is within 3 feet of a window
Correct answer: B. Bathrooms, garages, outdoors, crawl spaces, unfinished basements, kitchens and near sinks
Why this is right: GFCI protection covers receptacles in the listed damp, wet and grounded-surface locations, where a ground fault through a person is most likely. The list has expanded across recent code cycles.
Why the other options are wrong:
- A. Bedrooms only — Bedrooms are an AFCI concern rather than a GFCI location.
- C. Living rooms only — Living rooms are not on the GFCI list.
- D. Only where the receptacle is within 3 feet of a window — Window proximity is not a code criterion.
Where this shows up on the job: Confirm which NEC edition Colorado has adopted, because the GFCI location list grows nearly every cycle.
Code reference: NEC 210.8(A)
Common misconception: Studying an outdated GFCI location list.
How to study for the Colorado journeyman electrician exam
Confirm the adopted NEC edition first
Colorado adopts NEC editions on its own schedule, and GFCI locations, AFCI requirements and surge protection rules differ between cycles. Verify the edition the board is testing before you buy a code book, then study only that edition.
Know the three license tiers cold
Residential wireman, journeyman and master each carry a distinct scope, and contractor registration is separate again. Scope and supervision questions are free points if you have the tiers straight.
Drill ampacity in the correct sequence
Start at the table value for the conductor's insulation rating, apply ambient correction, apply conductor-count adjustment, then check the termination temperature limit last. Doing those steps out of order produces a wrong answer that still looks plausible.
Build code navigation speed
Tab Articles 100, 110, 210, 220, 230, 240, 250, 300, 310, 314, 430 and 450, plus Chapter 9 and Annex C. Time yourself: any lookup over 45 seconds means the tab is wrong or missing.
Run a six-week plan
Week one: Colorado law, board rules and definitions. Week two: branch circuits, feeders and load calculations. Week three: conductors, ampacity and overcurrent protection. Week four: wiring methods, boxes and raceways. Week five: grounding, bonding, services, motors and special systems. Week six: full-length timed sets under exam conditions.
Frequently asked questions
Is a Colorado electrician license valid statewide?
Yes. Colorado licenses electricians at the state level through the State Electrical Board, and the license is recognized statewide. Local permits and inspections still apply to the work.
What is a residential wireman license?
It is a narrower tier limited to residential work as defined by board rule. The journeyman license carries the broader commercial and industrial scope.
How many hours do I need before I can test?
The board sets on-the-job and classroom hour requirements by rule and revises them periodically, so we leave those figures pending. Confirm with the board before applying.
Which NEC edition does the exam use?
The board adopts NEC editions on its own schedule. Check the current candidate information bulletin for the edition and any permitted references before you schedule.
Do I need to be a master to run a business?
Electrical contractor registration in Colorado requires a master electrician associated with the business. A journeyman license alone does not authorize contracting.
Are these real Colorado exam questions?
No. Every question here is original CraftPATH material written to the same subject areas the exam covers. We do not reproduce live examination content.
How long should I study?
Most apprentices need six to ten weeks of focused review, weighted toward load calculations, ampacity, grounding and bonding, and Colorado scope and licensing rules.