OK Fire Sprinkler study materials
OK Fire Sprinkler study resources

OK Fire Sprinkler study plan

OK Fire Sprinkler · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Water Supply Analysis and Hydraulic Calculations & Codes, Standards, and Licensing Administration

  • Calculate sprinkler discharge pressure and flow for K=5.6, 8.0, and 11.2 at 7, 15, and 50 psi, showing every algebraic step.

  • Compute remote-area demand for a 1,500 sq ft light-hazard area at 0.10 gpm/sq ft and state the resulting system flow.

  • Apply Hazen-Williams with C=120 to 2-, 3-, and 4-inch Schedule 40 pipe at 250 gpm and tabulate friction loss per foot.

  • Outline Oklahoma licensing and plan-submittal requirements: licensing authority, contractor versus fitter credentials, permit sequence, and AHJ role.

Your checkpoint

One-page hydraulic worksheet containing Q=K√P examples, a Hazen-Williams friction table, and a supply-versus-demand plot for a light-hazard tree system.

Week 2

Water Supply Analysis and Hydraulic Calculations & System Types and Design Criteria (Occupancy Hazard, Density/Area, Special Occupancies)

  • Perform a complete tree-system calculation from the most remote head through the riser, including elevation, fitting equivalent length, and device losses.

  • Select density/area points for light hazard, Ordinary Group 1, and Ordinary Group 2 occupancies from the NFPA 13 density/area curves and justify each choice.

  • Calculate flow and pressure at the hydraulically most remote head on a 12-head branch line and propagate the demand back to the supply.

  • Convert between gpm, psi, and feet of head, then verify a static/residual flow test against the calculated demand plus safety margin.

Your checkpoint

Completed hydraulic calculation sheet for one Ordinary Group 2 system, from remote area to supply, with a documented 10 percent safety margin check.

Week 3

System Types and Design Criteria (Occupancy Hazard, Density/Area, Special Occupancies) & Sprinklers and System Components (Heads, Valves, Alarms, Flow Switches)

  • Classify five sample occupancies into light, ordinary, extra, and storage hazard categories and cite the governing NFPA 13 criteria for each.

  • Select sprinkler type, K-factor, temperature rating, and response characteristic for each classified occupancy and record the rationale.

  • Compare wet, dry, preaction, and deluge systems on trip time, air or nitrogen supervision, and inspection frequency.

  • Identify the function and acceptance-test requirement of alarm check valves, dry pipe valves, preaction valves, OS&Y valves, and butterfly indicating valves.

Your checkpoint

System-selection and sprinkler-schedule table for a mixed-use four-story building containing office, parking, and storage areas.

Week 4

Piping, Fittings, Materials, and Joints & Sprinklers and System Components (Heads, Valves, Alarms, Flow Switches)

  • Specify pipe material and joining method for black steel, galvanized steel, CPVC, and copper across five installation scenarios, citing the applicable NFPA 13 limitations.

  • Size branch lines, cross mains, and risers while checking velocity and friction limits against the calculated demand.

  • Compute equivalent length for fittings, valves, and devices and add it to the physical pipe length for each segment.

  • Lay out required control valves, drains, test connections, and gauge locations on a riser diagram and label each.

Your checkpoint

Piping specification and labeled riser diagram for the four-story building, with material callouts and fitting equivalent lengths tabulated by segment.

Week 5

Hangers, Restraint, and Seismic Protection & Fire Pumps, Tanks, and Water Storage

  • Lay out hangers and supports along a 100-foot main and branch line using NFPA 13 Chapter 17 spacing and placement limits, including zones of influence.

  • Design lateral, longitudinal, and four-way sway bracing for a 2,000 sq ft seismic zone and mark brace locations on a sketch.

  • Plot a fire pump curve at churn, rated flow, and 150 percent flow, then select a pump meeting system demand with the required pressure margin.

  • Calculate water storage tank capacity including fire flow, duration, and dedicated reserve for a 1,000 gpm demand.

Your checkpoint

Hanger and bracing layout sketch plus a one-page pump-and-tank selection summary with the demand point overlaid on the pump curve.

Week 6

Plan Review, Permits, and Field Inspection & Acceptance Testing, Inspection, Testing, and Maintenance

  • Review a ten-sheet sprinkler plan set against a 25-item checklist covering hydraulic calcs, spacing, clearances, and underground coordination.

  • Write at least ten correction comments, each tied to a specific code or standard citation.

  • Build a 12-month NFPA 25 inspection, testing, and maintenance calendar covering gauges, main drain, alarm devices, flow switches, and valve exercises.

  • Interpret main drain and inspector's test readings against expected static and residual values and identify three common failure signatures.

Your checkpoint

Redlined plan review with ten cited comments plus a completed 12-month ITM schedule for a wet system with a fire pump.

Week 7

Codes, Standards, and Licensing Administration & Acceptance Testing, Inspection, Testing, and Maintenance & Jobsite Safety and Coordination with Other Trades

  • Reconstruct the workflow from permit application through hydrostatic test, final inspection, and acceptance, naming each inspection hold point.

  • List OSHA requirements for fall protection, material lifting, and hot work that apply to sprinkler installation crews.

  • Sequence sprinkler rough-in against ductwork, electrical, and structural trades and identify three clash points to resolve before overhead installation.

  • Redo every missed question from weeks 1 through 6 and tag each by root cause: code misread, math error, or knowledge gap.

Your checkpoint

Jobsite safety and trade-coordination checklist plus an error log listing the 20 most-missed concepts with corrected explanations.

Week 8

Water Supply Analysis and Hydraulic Calculations & System Types and Design Criteria (Occupancy Hazard, Density/Area, Special Occupancies) & Acceptance Testing, Inspection, Testing, and Maintenance

  • Take two timed 100-question practice exams under exam conditions and record section-by-section scores.

  • Review every missed item, locate the governing code clause, and rewrite the correct reasoning in one sentence.

  • Compress key formulas, density/area values, hanger spacing limits, and ITM frequencies into a single reference page.

  • Re-drill the two lowest-scoring domains until a 30-question spot quiz yields at least 85 percent.

Your checkpoint

Two scored practice exams with a one-page formula and code-reference sheet covering all ten domains.

Milestones

Week 2: Complete the Ordinary Group 2 hydraulic calculation end-to-end in 30 minutes with no formula sheet and land within 5 percent of the answer key.

Week 4: Score at least 80 percent on a timed 50-question quiz covering domains 2, 3, 4, and 5.

Week 6: Submit the redlined plan review with ten valid cited comments and a complete 12-month ITM calendar; score at least 80 percent on a 40-question quiz covering domains 6 through 9.

Week 8: Score at least 85 percent on both timed 100-question practice exams, with no single domain below 70 percent.