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. A 44-ampere continuous load is supplied by a branch circuit. The minimum conductor ampacity required before applying any adjustment factors is:
Branch Circuits, Feeders and Load Calculations · Medium · Objective: Size a conductor for a continuous load.
- A. 44 amperes
- B. 50 amperes
- C. 55 amperes (correct)
- D. 60 amperes
Correct answer: C. 55 amperes
Why this is right: Conductors supplying a continuous load must be sized at not less than 125 percent of that load. 44 x 1.25 = 55 amperes.
Why the other options are wrong:
- A. 44 amperes — 44 amperes is the load itself with no continuous-duty multiplier applied.
- B. 50 amperes — 50 amperes would be a roughly 114 percent multiplier, which the code does not allow.
- D. 60 amperes — 60 amperes exceeds the requirement; it is the next standard device size, not the required conductor ampacity.
Where this shows up on the job: Continuous loads such as lighting, sign circuits, and EV chargers are where undersized feeders show up on plan review.
Code reference: NEC 210.19(A) and 210.20(A) as adopted by the Florida Building Code
Common misconception: Applying the 125 percent factor only to the breaker and not to the conductor.
Question 2. Using the standard calculation method, the general lighting load for a 2,400 square foot dwelling is:
Branch Circuits, Feeders and Load Calculations · Hard · Objective: Apply the general lighting load for a dwelling.
- A. 4,800 VA
- B. 7,200 VA (correct)
- C. 9,600 VA
- D. 12,000 VA
Correct answer: B. 7,200 VA
Why this is right: The standard method assigns 3 volt-amperes per square foot of habitable area for general lighting and general-use receptacles. 2,400 x 3 = 7,200 VA.
Why the other options are wrong:
- A. 4,800 VA — 4,800 VA uses 2 VA per square foot, which is not the dwelling unit value.
- C. 9,600 VA — 9,600 VA uses 4 VA per square foot.
- D. 12,000 VA — 12,000 VA uses 5 VA per square foot, closer to some commercial occupancy values.
Where this shows up on the job: Every residential service calculation starts here, and a wrong multiplier cascades into an undersized service.
Code reference: NEC Article 220, Part III, general lighting load table
Common misconception: Using a commercial occupancy volt-ampere value on a dwelling calculation.
Question 3. A feeder conductor has an ampacity of 95 amperes after adjustment and supplies a noncontinuous load. The device permitted by the next-standard-size rule is:
Overcurrent Protection · Medium · Objective: Select a standard overcurrent device.
- A. 90 amperes
- B. 100 amperes (correct)
- C. 110 amperes
- D. 125 amperes
Correct answer: B. 100 amperes
Why this is right: Where the conductor ampacity does not match a standard device rating and the circuit does not supply receptacles for cord-and-plug loads, the next higher standard rating above the ampacity is permitted, up to 800 amperes. The next standard size above 95 is 100.
Why the other options are wrong:
- A. 90 amperes — 90 amperes is permitted but is not the next size up; the question asks for the size the rule allows.
- C. 110 amperes — 110 amperes skips past the next standard rating of 100.
- D. 125 amperes — 125 amperes is far beyond the conductor ampacity and is not permitted.
Where this shows up on the job: Getting this rule wrong in either direction leads to nuisance tripping or an unprotected conductor.
Code reference: NEC 240.4(B) and the standard ampere ratings in 240.6(A)
Common misconception: Believing the next-size-up allowance applies to every circuit, including multioutlet receptacle branch circuits.
Question 4. Which of the following is NOT a standard ampere rating for a fuse or inverse time circuit breaker?
Overcurrent Protection · Medium · Objective: Recall standard device ratings.
- A. 70
- B. 85 (correct)
- C. 110
- D. 225
Correct answer: B. 85
Why this is right: The list of standard ratings runs 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 110, 125, 150, 175, 200, 225 and upward. 85 is not on that list.
Why the other options are wrong:
- A. 70 — 70 amperes is a standard rating.
- C. 110 — 110 amperes is a standard rating.
- D. 225 — 225 amperes is a standard rating.
Where this shows up on the job: Exam calculation questions almost always end in rounding to a standard rating, so the list has to be memorized.
Code reference: NEC 240.6(A)
Common misconception: Assuming every round number is a standard overcurrent device rating.
Question 5. A service is supplied by parallel sets totaling 500 kcmil copper equivalent per phase. The grounding electrode conductor is sized from:
Grounding and Bonding · Hard · Objective: Size a grounding electrode conductor.
- A. The rating of the service overcurrent device
- B. The largest ungrounded service-entrance conductor or equivalent area for parallel conductors (correct)
- C. The size of the equipment grounding conductor
- D. The calculated service load in amperes
Correct answer: B. The largest ungrounded service-entrance conductor or equivalent area for parallel conductors
Why this is right: The grounding electrode conductor is sized from the largest ungrounded service-entrance conductor, and for parallel installations from the equivalent area of the parallel set, not from the overcurrent device.
Why the other options are wrong:
- A. The rating of the service overcurrent device — Overcurrent device rating sizes equipment grounding conductors, not the grounding electrode conductor.
- C. The size of the equipment grounding conductor — The equipment grounding conductor is a separate calculation and does not drive this one.
- D. The calculated service load in amperes — Calculated load determines conductor size, but the electrode conductor is taken from the resulting conductor size.
Where this shows up on the job: This is the single most commonly failed grounding question on contractor exams and one inspectors check on every service.
Code reference: NEC 250.66 and 250.102
Common misconception: Sizing the grounding electrode conductor from the breaker like an equipment grounding conductor.
Question 6. Interior metal water piping in a building must be:
Grounding and Bonding · Medium · Objective: Identify a bonding requirement.
- A. Left isolated from the electrical system
- B. Bonded to the service equipment enclosure, grounded conductor, or grounding electrode conductor (correct)
- C. Used as the sole grounding electrode
- D. Bonded only if it is copper
Correct answer: B. Bonded to the service equipment enclosure, grounded conductor, or grounding electrode conductor
Why this is right: Interior metal water piping must be bonded so that a fault energizing the piping clears the overcurrent device instead of leaving the piping energized.
Why the other options are wrong:
- A. Left isolated from the electrical system — Isolation is exactly the hazard the bonding requirement exists to prevent.
- C. Used as the sole grounding electrode — A metal underground water pipe in contact with earth can serve as an electrode, but interior piping bonding is a separate requirement and cannot be the sole electrode.
- D. Bonded only if it is copper — The requirement applies to metal piping likely to become energized regardless of the specific metal.
Where this shows up on the job: Plastic repairs on a metal water system quietly break the bonding path, which is why bonding jumpers around meters and dielectric unions matter.
Code reference: NEC 250.104(A)
Common misconception: Confusing bonding of interior piping with using the water pipe as a grounding electrode.
Question 7. Conductors supplying a single continuous-duty motor must have an ampacity of not less than:
Motors, Transformers and Special Equipment · Hard · Objective: Size motor branch-circuit conductors.
- A. 100 percent of the motor nameplate current
- B. 115 percent of the nameplate current
- C. 125 percent of the motor full-load current from the applicable NEC table (correct)
- D. 125 percent of the nameplate current
Correct answer: C. 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 taken from the NEC motor tables, not from the nameplate. Nameplate current is used for overload protection.
Why the other options are wrong:
- A. 100 percent of the motor nameplate current — Nameplate current at 100 percent leaves no margin and uses the wrong source value.
- B. 115 percent of the nameplate current — 115 percent is an overload protection percentage for certain motors, not a conductor sizing factor.
- D. 125 percent of the nameplate current — The 125 percent factor is correct but it must be applied to the table value, not the nameplate.
Where this shows up on the job: Table versus nameplate is the distinction that separates people who pass motor questions from people who do not.
Code reference: NEC 430.6(A), 430.22 and 430.32
Common misconception: Using nameplate full-load amps for conductor sizing.
Question 8. A 45 kVA three-phase transformer has a 208Y/120-volt secondary. The rated secondary current is approximately:
Motors, Transformers and Special Equipment · Hard · Objective: Calculate transformer current.
- A. 125 amperes (correct)
- B. 144 amperes
- C. 216 amperes
- D. 250 amperes
Correct answer: A. 125 amperes
Why this is right: Three-phase current equals kVA x 1,000 divided by the product of the line voltage and the square root of three. 208 x 1.732 = 360.3, and 45,000 / 360.3 = about 125 amperes.
Why the other options are wrong:
- B. 144 amperes — 144 amperes comes from using 180 volts or a two-phase style factor; it does not follow from the three-phase relationship at 208 volts.
- C. 216 amperes — 216 amperes results from dividing by 208 alone and ignoring the three-phase factor.
- D. 250 amperes — 250 amperes is roughly double the correct value.
Where this shows up on the job: Secondary current sets the panel and conductor size on every commercial transformer you install.
Code reference: NEC Article 450; standard three-phase power relationship
Common misconception: Omitting the square root of three when converting kVA to amperes on a three-phase system.
Question 9. For electrical work in Florida, the enforceable technical requirements come from:
Florida Code Amendments and Storm Resilience · Medium · Objective: Identify the governing technical code in Florida.
- A. The unamended National Electrical Code as published
- B. The National Electrical Code edition adopted, and amended, through the Florida Building Code (correct)
- C. Local ordinance only
- D. Florida Statutes Chapter 489 alone
Correct answer: B. The National Electrical Code edition adopted, and amended, through the Florida Building Code
Why this is right: Florida adopts an edition of the NEC through the Florida Building Code, with state amendments, and local jurisdictions may add administrative requirements. Chapter 489 governs licensing, not technical installation.
Why the other options are wrong:
- A. The unamended National Electrical Code as published — The published NEC applies only as adopted and amended by the state.
- C. Local ordinance only — Local ordinances supplement the adopted code; they do not replace it.
- D. Florida Statutes Chapter 489 alone — Chapter 489 is the licensing statute and contains no installation requirements.
Where this shows up on the job: Working from a code cycle the state has not adopted is a fast way to fail an inspection you already paid for.
Code reference: Florida Building Code adoption of the National Electrical Code; Florida Statutes Chapter 489
Common misconception: Assuming the newest NEC edition is automatically enforceable in Florida.
Question 10. For a permanently installed optional standby generator serving a dwelling, the transfer equipment must:
Florida Code Amendments and Storm Resilience · Medium · Objective: Apply optional standby generator rules.
- A. Allow the generator and the utility to be connected simultaneously
- B. Prevent the inadvertent interconnection of the normal and alternate sources (correct)
- C. Be omitted if the homeowner opens the main breaker manually
- D. Be installed only on the generator side of the service
Correct answer: B. Prevent the inadvertent interconnection of the normal and alternate sources
Why this is right: Transfer equipment must be designed and installed to prevent the inadvertent interconnection of normal and alternate power sources, which is what protects utility line workers from backfeed.
Why the other options are wrong:
- A. Allow the generator and the utility to be connected simultaneously — Simultaneous connection is precisely what the code prohibits for these systems.
- C. Be omitted if the homeowner opens the main breaker manually — Manual breaker operation is not an approved substitute for listed transfer equipment.
- D. Be installed only on the generator side of the service — Placement alone does not satisfy the interlock requirement.
Where this shows up on the job: After every Florida hurricane season, backfed generators injure line crews. Inspectors treat this as a life-safety item.
Code reference: NEC Article 702 optional standby systems; Article 700 for emergency systems
Common misconception: Treating a homeowner's manual procedure as equivalent to a listed interlock or transfer switch.
Question 11. The practical difference between a Florida certified and a registered electrical contractor is:
Business, Finance and Chapter 489 · Medium · Objective: Distinguish certified from registered licensure.
- A. Certified contractors may work statewide; registered contractors may work only in the jurisdiction that issued their competency card (correct)
- B. Certified contractors may only do residential work
- C. Registered contractors need no insurance
- D. There is no difference other than the fee
Correct answer: A. Certified contractors may work statewide; registered contractors may work only in the jurisdiction that issued their competency card
Why this is right: State certification confers statewide scope. Registration is based on a local competency card and limits practice to that local jurisdiction.
Why the other options are wrong:
- B. Certified contractors may only do residential work — Certification is not limited to residential work.
- C. Registered contractors need no insurance — Both categories must meet the insurance and financial responsibility requirements of Chapter 489.
- D. There is no difference other than the fee — Scope of practice differs substantially, not just the fee.
Where this shows up on the job: Contractors who take work outside the county that issued their card are the most common unlicensed-practice complaint the board handles.
Code reference: Florida Statutes Chapter 489, Part II
Common misconception: Believing a local competency card allows work anywhere in Florida.
Question 12. Under Florida's Construction Lien Law, a subcontractor who has no direct contract with the owner generally protects lien rights by:
Business, Finance and Chapter 489 · Hard · Objective: Apply Florida construction lien basics.
- A. Recording the lien before starting work
- B. Serving a Notice to Owner within the statutory period after first furnishing labor or materials (correct)
- C. Sending an invoice at the end of the job
- D. Filing suit before the work is complete
Correct answer: B. Serving a Notice to Owner within the statutory period after first furnishing labor or materials
Why this is right: A lienor not in privity with the owner must timely serve a Notice to Owner after first furnishing labor or materials in order to preserve the right to record and enforce a lien.
Why the other options are wrong:
- A. Recording the lien before starting work — A claim of lien is recorded after furnishing begins and within the statutory window, not before work starts.
- C. Sending an invoice at the end of the job — An invoice is not a statutory notice and preserves nothing.
- D. Filing suit before the work is complete — Suit is the enforcement step, and it follows a properly perfected lien.
Where this shows up on the job: Missing the notice window is how profitable jobs turn into unsecured receivables. Confirm current deadlines in Chapter 713 before relying on any summary.
Code reference: Florida Statutes Chapter 713, Construction Lien Law
Common misconception: Assuming a signed contract alone preserves lien rights for a subcontractor.
How to study for the Florida electrical contractor exam
Confirm which license you are testing for
Certified and registered licenses are different credentials with different scopes and different application paths. Certified licensure is issued by the state board and lets you contract anywhere in Florida. Registration is tied to a local competency card and limits you to that jurisdiction. Decide which one you need before you buy prep material, because the business and finance expectations and the application documentation differ.
Work from the adopted code edition, not the newest one
Florida adopts an edition of the National Electrical Code through the Florida Building Code and amends it. Buy or tab the edition the state currently enforces. Studying a newer cycle than the one on the exam will cost you points on the handful of articles that changed, and it will cost you inspections in the field.
Drill Article 220 until the calculations are mechanical
Load calculation questions are the heaviest single block of arithmetic on the exam and the easiest to prepare for because the method never changes. Practice dwelling standard and optional methods, small appliance and laundry circuits, appliance and dryer demand factors, and commercial general lighting values until you can run a calculation without stopping to look up the sequence.
Separate the three grounding questions in your head
Exams test grounding electrode conductor sizing, equipment grounding conductor sizing, and bonding as three different things, and most candidates blur them. Grounding electrode conductors come from the service conductor size. Equipment grounding conductors come from the overcurrent device rating. Bonding is about connecting metal that could become energized. Learn which table answers which question.
Treat business and finance as its own exam
The business component covers contracts, Florida lien law, workers' compensation and payroll, financial statements, bidding and estimating, and the licensing rules in Chapter 489. Trade experience does not teach this material. Read the reference books the board's bulletin lists, and practice the lien and payroll timelines specifically.
Run a six-week schedule with timed open-book sets
Week one: branch circuits and feeders. Week two: load calculations. Week three: overcurrent protection and conductors. Week four: grounding, bonding, motors and transformers. Week five: business, finance and Chapter 489. Week six: full-length timed sets with your tabbed code book at roughly one question per minute, so lookup speed becomes part of your preparation.
Frequently asked questions
What is the difference between a certified and a registered electrical contractor in Florida?
A certified contractor is licensed by the state board and may contract anywhere in Florida. A registered contractor holds a local competency card and may work only in the jurisdiction that issued it.
Which code does the Florida electrical contractor exam use?
The National Electrical Code edition adopted through the Florida Building Code, including state amendments. Confirm the exact edition in the current candidate information bulletin before you buy a code book.
Is there a business and finance portion?
Yes. The examination includes a business and finance component covering contracts, lien law, payroll, workers' compensation, estimating, and financial management alongside the technical trade content.
How many questions are on the exam and what score do I need?
Item counts and passing scores are published by the board's examination vendor in the current candidate information bulletin and change between cycles, so we mark those pending rather than repeating unsourced numbers.
Is the exam open book?
The technical portions have historically permitted approved references. The bulletin lists exactly which books are allowed and how they may be tabbed, so verify before exam day.
Are these real Florida 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?
Experienced electricians typically need six to ten weeks, weighted heavily toward load calculations, grounding, and the business and finance material that field work never teaches.