NC Fire Sprinkler study plan

Map the occupancy hazard classification scheme (light, ordinary Group 1 and 2, extra Group 1 and 2) and label ten real building types by class

Trace the design-approach decision tree: pipe schedule vs. hydraulic calculation, wet vs. dry vs. preaction, and when each applies

Build a one-page comparison of design density and remote-area requirements across all four hazard classes

Identify the five most commonly tested spacing rules (sprinkler spacing, branch-line spacing, deflector distance, obstruction rules) and write them from memory

Differentiate the major sprinkler types (pendent, upright, sidewall, concealed, ESFR, residential) by application and temperature rating

Explain the function of each major component: alarm check valve, dry pipe valve, preaction valve, deluge valve, flow switch, and inspector's test connection

Diagram a wet system riser assembly from supply main through test connection, labeling every valve and gauge

Match pipe and fitting materials (black steel, galvanized, CPVC, copper) to the systems and environments where each is permitted

Perform a full hydraulic calculation by hand for a simple tree system using the density/area method, showing each step

Convert between flow, pressure, and pipe friction using the Hazen-Williams relationship and explain how C-factors change with pipe material and age

Calculate pressure loss through fittings using equivalent pipe length and explain when that shortcut is acceptable

Determine the required supply pressure at the base of the riser including elevation and device losses

Interpret a water supply flow test curve and plot it against the system demand curve to find the safety margin

Explain how a storage tank, booster pump, or city main affects available pressure and when each is needed

Size a standpipe and sprinkler combination system given a fixed available supply

Identify the causes of insufficient supply and the accepted remedies for each

Outline the structure of North Carolina General Statutes Chapter 87, Article 2, including licensing, scope, and enforcement provisions

Summarize the key requirements of 21 NCAC Chapter 50 covering licensure, examinations, and continuing education

Explain the difference between a licensed sprinkler contractor, a certified installer, and an unlicensed helper under North Carolina rules

List the disciplinary grounds and penalties a licensee can face and the process that applies

Describe the plan submittal and review process in North Carolina, including who may prepare and seal plans and what must accompany a submittal

Explain the roles of the state fire marshal, local code official, and design professional in approval and inspection

List the required inspections from rough-in through final and what the inspector verifies at each

Identify the records a contractor must keep and the notification duties before covering work

Draft a sample contract scope that allocates responsibility for design, permits, inspections, and as-built documents

Explain the acceptance testing sequence for a wet system, dry system, and preaction system, including hydrostatic and flow tests

Describe the maintenance and inspection intervals a contractor should communicate to an owner after turnover

Identify common change-order and liability pitfalls in sprinkler contracting and how to document them

Complete a timed 100-question practice set across all five domains and score each domain separately

Re-derive your weakest three calculations from scratch without reference material

Recite the licensing and continuing education requirements from memory

Review every missed question and write a one-line rule for each to prevent repeat errors