Diagnostic
Where do you actually stand?
20 questions, weighted like the exam. The result comes back broken down by section, the way a real fail report is.
What it measures
20 scored questions across the 7 exam sections, weighted like the paper. Each one is marked as you answer it, with the explanation under it.
Free, no account, and you can stop whenever you like.
What comes back
Your overall score against this site's 70 percent study line, then every section on its own line against the same mark, with the weakest one named. Contractors State License Board publishes no pass mark, so that line is our own target. The shape matches a real fail report, which comes back section by section.
See the readout's shape, built from an example sitting, before you sit anything.
Why the weighting matters
The study guide gives each of the seven sections a share of the paper, and the shares are nowhere near even: Contract Requirements and Execution carries 21 percent and the smallest carries 5 percent. A weak heavy section costs far more than a weak light one, which is why this readout reports every section separately instead of handing back one number.
What you may take in
Nothing. The study guide says it is a closed-book examination and no reference material may be used. A calculator is provided for the questions that need arithmetic, and your own stays outside along with phones, watches, smart devices, notes and reading material. This diagnostic is untimed and you can look things up, so do not read the score as a prediction. On the day, with no notes and a clock running, expect lower.
Before you pay for another sitting
The exam fee is paid by the applicant directly to the organization that administers the exam, at no greater than the actual cost of administering it. Rescheduling an examination costs $100, set by 16 CCR s. 811(b)(1). A failed exam cannot be retaken for 21 calendar days. The diagnostic is free, and its readout tells you which of the seven sections to spend those days on.
Every question in this diagnostic
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What does the registrar look at to fix the amount of a disciplinary contractor's bond after a license law violation?
The seriousness of the violation sets it: the registrar fixes the sum at no less than $25,000 and no more than 10 times the contractor's bond (Bus. & Prof. Code s. 7071.8(b)). No flat statutory sum applies, and the licensee's volume of work plays no part.
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How many hours a week must a responsible managing employee work to count as actively engaged in the applicant's business?
32 hours a week, or 80 percent of the hours the business operates if that is less (Bus. & Prof. Code s. 7068(c)(2)(B)). The definition says whichever is less, and neither 20 hours nor 40 appears in it.
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In any one-year period, one qualifying individual may serve as qualifier for at most how many separate firms?
One qualifier may serve at most three firms in any one-year period, even where the firms share ownership (Bus. & Prof. Code s. 7068.1(b)). The ceiling applies notwithstanding the common ownership rules, and four firms is one more than it allows.
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On the cash basis of accounting, revenue is recognized and expenses are deducted:
When money is received and paid, because the cash basis counts revenue when cash comes in and an expense in the year it is paid (CSLB Law Book 2026, p. 50). Counting income when earned and costs when incurred is the accrual basis.
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On the completed contract method, when is the income from a long-term job started in one tax year and finished the next reported?
The completed contract method reports the income and the costs of a contract only in the year the contract is completed. Spreading them across the years the work is done is the percentage of completion method.
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What does a balance sheet report about the financial position of a construction business?
The balance sheet is a statement of the financial condition of a business at a certain point in time, which is why it is often called a snapshot; the statement that summarizes what happened across a period is the income statement.
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When an employer discharges an employee, the Labor Code makes the earned and unpaid wages due:
At the time of discharge: wages earned and unpaid when an employee is fired are due and payable immediately (Lab. Code s. 201(a)). Holding the final check for the next regular payday makes the employer late already.
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How soon must final wages be paid to an employee without a definite-term written contract who quits with no notice?
Within 72 hours: an employee without a written contract for a definite period who quits with no notice must be paid no later than 72 hours after quitting (Lab. Code s. 202(a)). Pay at the moment of quitting is owed only when the employee gave 72 hours' notice first.
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A contractor willfully withholds a discharged worker's final pay for 45 days. At $240 a day, the waiting time penalty is:
$7,200: a willfully withheld final paycheck runs on as a penalty at the same daily rate, but the law caps it at 30 days, and 30 days at $240 is $7,200 (Lab. Code s. 203(a)). Counting all 45 days of the delay overshoots the cap.
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A contractor wants to pay its hourly field crews once a month for the prior month's work. How often must it pay them?
Twice each calendar month: hourly crews must be paid for the 1st to the 15th between the 16th and the 26th, and for the rest of the month by the 10th of the next (Lab. Code s. 204(a)). A single monthly payday, even one set in advance, pays the first half of the month too late.
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The notice every employer covered by workers' compensation must keep conspicuously posted must show:
The carrier's name and who adjusts claims: the posted notice names the current compensation carrier, or says the employer is self-insured, and says who handles claims (Lab. Code s. 3550(a)). It lists no covered employees and no policy numbers.
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After a private work of improvement is completed, the owner may record an effective notice of completion:
Within 15 days, because an owner may record a notice of completion only on the completion date or within 15 days after it (Civ. Code s. 8182(a)). Thirty days is not the recording window.
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An agreement to improve a home becomes a home improvement contract, with its required contents, once the total contract price is:
More than $500, because an agreement is a home improvement contract only once its total price for labor, services and materials exceeds $500 (Bus. & Prof. Code s. 7159(b)). Neither $750 nor $1,000 is the trigger.
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On a home improvement job, at what point must the buyer receive a contract copy that both parties have signed and dated?
Before any work starts: the contractor must give the buyer a copy of the contract signed and dated by both parties before any work is started (Bus. & Prof. Code s. 7159(c)(3)(A)). Tying delivery to the first payment is not the rule.
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To become part of a home improvement contract, a written change order for extra work must be signed by both parties:
Both parties must sign the written change order before any of the work it covers starts, and only then does it become part of the contract (Bus. & Prof. Code s. 7159(c)(5)). Signing before the next progress payment is too late once the extra work has begun.
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A homeowner aged 70 signs a $22,000 remodel contract at her kitchen table and receives the signed, dated copy that day. She may cancel until midnight of:
The fifth business day, because for a senior citizen buyer every "three" and "third" in the cancellation notice becomes "five" and "fifth" (Bus. & Prof. Code s. 7159(e)(6)(B)(ii)). Three business days is the ordinary right, and a calendar-day count is not the measure.
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Prevailing wages need not be paid on a public works project whose total cost is no more than:
$1,000: prevailing wages are owed on every public works project except one of $1,000 or less (Lab. Code s. 1771). A $15,000 or $25,000 project is past that line and owes them.
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In what form must every employer keep its Injury and Illness Prevention Program (IIPP)?
In writing: every employer must have an Injury and Illness Prevention Program, and it must be written (8 CCR s. 3203(a)). An oral program does not meet it.
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On a construction site, supervisors must hold toolbox or tailgate safety meetings with their crews at least:
At least every 10 working days, because supervisors must hold toolbox or tailgate meetings with their crews at that interval (8 CCR s. 1509(e)). A monthly meeting falls short of it.
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Before digging, how much notice must an excavator give the regional notification center for the area?
Two working days: the regional notification center must hear of the work at least 2 working days before digging starts (8 CCR s. 1541(b)(2)). Three working days is not the rule's figure.
Questions about the diagnostic
- What is the diagnostic?
- A quick 20 scored questions check, weighted like the real exam, that shows you which section you are weakest in. About twenty minutes, untimed, no account.
- How long does it take?
- About twenty minutes. You get the answer and the explanation right after each question.
- Is it really free?
- Yes, with no account and no card. It is drawn from the 116 free questions, which are open to anyone, and the whole readout is shown.
- What does the readout show?
- Your score against this site's 70 percent study line, then every section on its own line against the same mark, and it names the section furthest below it. Contractors State License Board publishes no pass mark, so that line is ours and not the exam's.
- Do I need an account?
- Not for this. The result is kept in this browser, so you can come back to it on the same device. A free account keeps it anywhere and keeps what you practice afterwards.
- Is LBExam connected to Contractors State License Board?
- LBExam is independent and not affiliated with the Contractors State License Board.