Free California Contractor License Exam Practice Test
Realistic 115-question practice exam with instant feedback and score reports.
About this practice exam
Free California Contractor License Exam practice test with 115 realistic multiple-choice questions, instant grading, and explanations. Typical passing score is about 72%. Study with drill mode, category score reports, and a personalized review plan.
Exam format
- 115 multiple-choice practice questions
- Typical passing score: 72%
- Drill mode with instant feedback and explanations after each answer
Study tips
- Review the official exam content outline before your first practice run.
- Take the full practice exam once to establish a baseline score by category.
- Focus review on categories where you score below the passing threshold.
- Re-take missed questions in drill mode until you can explain each correct answer.
- Schedule the real exam only after consistent passing scores on practice tests.
Sample CA Contractor practice questions
Try a few representative questions below. Each includes the correct answer and a short explanation — the same style you'll see in the full practice test.
- Question 1Seismic Retrofitting
A contractor is performing a seismic retrofit on a non-ductile concrete building in California. The project requires the installation of new shear walls and the strengthening of existing columns. Which of the following is MOST critical to ensure compliance with California Building Code (CBC) seismic provisions for this specific type of structure?
- A.Ensuring the concrete mix design for new elements meets or exceeds the specified compressive strength and includes appropriate admixtures for durability.
- B.Strict adherence to prescriptive detailing requirements for new shear walls as outlined in Chapter 21 of the CBC.
- C.Verification that all existing column reinforcement is adequately confined, potentially requiring retrofitting with steel jacketing or FRP wraps, in accordance with ASCE 41 guidelines.(Correct)
- D.Obtaining all necessary permits from the local building department and scheduling required inspections at critical stages of construction.
Explanation
Non-ductile concrete buildings have specific vulnerabilities during seismic events. ASCE 41 (Seismic Retrofit of Existing Buildings) provides detailed guidelines for evaluating and retrofitting these structures, with a strong emphasis on column confinement to prevent brittle failure. While other options are important, column integrity is paramount for seismic performance in this building type.
- Question 2Risk Management & Bidding
You are bidding on a commercial project requiring extensive underground plumbing. The site investigation reveals a high water table and potentially contaminated soil. Which of the following actions should be prioritized to mitigate risks and ensure code compliance during the bidding phase?
- A.Specify the use of Schedule 40 PVC pipe for all underground installations, as it is the most cost-effective option.
- B.Obtain quotes from multiple plumbing subcontractors and select the one with the lowest bid to remain competitive.
- C.Assume standard excavation and backfill procedures, as detailed soil analysis is typically performed after contract award.
- D.Include a contingency for dewatering operations and specialized hazardous material handling based on preliminary soil reports.(Correct)
Explanation
A high water table and contaminated soil necessitate special considerations. Dewatering may be required to allow for proper excavation and installation, and hazardous material handling protocols must be followed. Including these potential costs and procedures in the bid is crucial for accurate pricing and compliance, avoiding significant change orders later.
- Question 3Electrical Load Calculations
A residential client requests a significant electrical upgrade, including the addition of a new sub-panel to accommodate a spa and an electric vehicle charging station. The existing service is a 100-amp main panel. What is the MOST critical factor to consider when determining if the existing service can handle the additional load?
- A.The age and condition of the existing main panel and service entrance conductors.
- B.The calculated load for the existing structure plus the new additions, compared to the 100-amp capacity, using NEC Article 220 calculations.(Correct)
- C.The client's stated future electrical needs and potential for further additions.
- D.The total square footage of the house and the number of existing circuits.
Explanation
The National Electrical Code (NEC) Article 220 outlines the methodology for calculating electrical loads. A proper load calculation comparing the existing demand, the new spa load, and the EV charger load against the 100-amp service capacity is the definitive way to determine if the service is adequate.
Want the full exam? Start the free practice test →
Frequently asked questions
How many questions are on this CA Contractor practice test?
This practice test includes 115 multiple-choice questions designed to mirror the format and difficulty of the real California Contractor License Exam.
Is this CA Contractor practice test free?
Yes. You can start practicing for free. Create an account to save progress, track weak categories, and retake the exam.
Do I get explanations after each question?
Yes. In drill mode you see why the correct answer is right, why distractors are wrong, and practical examples where relevant.
How should I use this practice test to prepare?
Take the full exam under timed conditions, review missed questions by category, then focus study on your weakest sections before scheduling the real exam.
Does this replace official exam materials?
No. Use this as a supplement alongside official candidate information bulletins, textbooks, and hands-on experience required for your license or certification.
Related practice tests
Ready to test your knowledge?
Free 115-question practice exam — no sign-up required to try.