Try fire protection questions on estimating, sprinkler layout, wet and dry systems, underground mains and fire pumps. Get explanations for fire protection math, inspection and testing, and jobsite safety.
Before closeout, a fire protection contractor must pay for these inspections:
A supervisor paid $72/hr must accompany the inspectors during every inspection. What will the supervisor's time cost?
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Answer 20 original practice questions on tank volume and inspection-fee math, occupancy hazard classes, the hydraulic design area and minimum sprinkler pressure. Review questions on deluge systems, main drains, fire department connections in freezing areas, fire pump discharge valves, sway bracing, sprinkler deflector distance, kitchen hood systems, thrust blocks, hydrant placement, inspector's test connections, damaged sprinklers, ladders, trench protection, fall protection and power tools. Your result groups the sample by published CSLB topic area to show where planning, underground work, installation, maintenance or safety needs more attention.
The C-16 Fire Protection Contractor exam draws from these published CSLB topic areas. The percentages show approximate exam weights; your sample result groups answers by the same areas.
Topic names and weights follow CSLB C-16 Fire Protection Contractor study guides; your practice here uses original Test2Pro questions grouped by those areas.
The CSLB C-16 study guide applies to exams scheduled on or after January 26, 2022. It lists the references below. The exam is closed book, so study from them before test day.
CSLB C-16 study guide PDFRead California codes free onlineHow to use a CSLB study guide →
List from the CSLB C-16 study guide. You don't have to buy from the publishers it names: CSLB notes the books are sold elsewhere too.
Fire protection work runs from bidding and layout to underground mains, sprinkler and standpipe systems, fire pumps and inspection. This sample covers all five CSLB topic areas, so you can spot gaps outside the work you do most often, whether that is new installs, underground work or service. Your result shows where to focus next; it does not predict whether you will pass. Full prep adds the complete question bank, saved history and readiness tracking.
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Download the 20 questions on this page as a free PDF with answers and explanations. No login needed. CSLB's free C-16 study guide lists the five exam areas, sample questions and the codes and standards to study. It applies to exams scheduled on or after January 26, 2022, so check older material against it. Its link is below, under Sources and method.
It has five areas: Planning and Estimating (25%), Installation of Underground Fire Main Systems (9%), Installation of Fire Protection Systems (36%), Maintenance and Repair of Fire Protection Systems (9%) and Safety (21%). CSLB calls the percentages approximate. A fitter who mostly installs overhead sprinkler pipe will still see estimating, underground, fire pump, inspection and trench safety questions. Take this free test, see which areas you miss, and study those first.
CSLB's guide names the 2025 California Building and Fire Codes, nine NFPA standards (13, 13D, 13R, 14, 17, 17A, 20, 24 and 25) and the Cal/OSHA safety orders. The NFPA editions differ from one standard to the next, so the What to read block above lists each one with the edition CSLB names.
CSLB says some questions require math and provides a calculator. This sample asks you to turn a tank's gallons into cubic feet and to total inspection costs, and the harder questions after it add sprinkler pressure from the K-factor, static pressure from an elevated tank and the larger design area of a dry pipe system. Expect areas, volumes, pressures and costs. Write the units at every step: gallons to cubic feet, feet of water to psi, square feet of design area to sprinkler counts.
No. C-16 is not one of the 10 CSLB exams offered in Spanish, although Law & Business is. If reading English is hard, CSLB may allow a translator you choose, approved in advance. The exam is in English, so learn the English terms too: Test2Pro also works in Spanish, and practice questions can be shown in 8 languages, including Spanish.
CSLB's C-16 description covers laying out, fabricating and installing all types of fire protection systems, including the equipment that goes with them, but not electrical alarm systems. That is why the exam mixes estimating, underground mains, sprinkler and standpipe systems, fire pumps and inspection. For a specific job, read the full classification on CSLB's site.
Within each topic, note whether a missed answer came from math, a system or component choice, or a safety rule. Rework the calculations first, then review the unfamiliar NFPA terms before trying another session.
Topic names and weights follow CSLB study guides; practice questions are original Test2Pro content.
Question bank last updated: November 2026.
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