AR Plumber study plan

Compute fixture-unit loads for a building drain, building sewer, and every branch interval in a two-story dwelling

Calculate developed length of a drainage run and verify that each horizontal section meets its required slope

Determine pipe size and fitting type at each change of direction, and identify prohibited drainage fittings and configurations

Lay out a complete sanitary drainage system in isometric view for a three-fixture-group house, labeling every size and slope

Diagnose and correct five common drainage layout errors, including improper stack-to-drain connections and inadequate cleanout placement

Convert water supply fixture-unit demand to probable flow in gallons per minute for a single-family service

Size a water service, main, and branch lines from a given fixture-unit load and developed length

Select pipe material for supply and distribution and state the approved joining method for each

Size vents from drainage fixture units and developed length for stacks, branches, and individual fixtures

Distinguish common, individual, wet, circuit, and stack vents, and select the correct type for each fixture in a given layout

Verify vent terminal locations against required clearances from openings, air intakes, and property lines

Trace a vent system from each trap to open air and identify every point where a vent is improperly combined

Solve 45-degree and 22.5-degree offset problems, computing travel, run, and fitting take-out for each

Convert between fixture units, gallons per minute, pipe diameter, and velocity using standard formulas

Read a blank isometric and derive every pipe size from the fixture-unit table without referencing a completed drawing

Work time-limited calculation sets so that sizing decisions take under three minutes per problem

Outline the Arkansas plumbing licensing sequence: apprentice registration, journeyman eligibility, master eligibility, and renewal obligations

Identify who may pull a plumbing permit, who may supervise work, and what triggers disciplinary action under state rules

Set minimum fixture counts and clearances for a given occupancy type, including water closet, lavatory, and bathtub spacing

Verify installation requirements for fixture fittings, water closet connections, and floor-mounted versus wall-mounted support

Select the correct trap for each fixture and verify trap seal depth, distance to vent, and protection against siphonage

Classify six cross-connection scenarios and specify air gap, reduced pressure principle assembly, pressure vacuum breaker, or double check valve for each

Size a grease interceptor and a sand/oil interceptor for given fixture discharge rates

Sequence the permit and inspection process from application through final approval, naming who may perform each step

Size a water heater for a given dwelling and compute recovery rate and temperature rise

Specify the relief valve rating, discharge pipe material, and termination point for a water heater installation

Size vertical storm conductors and horizontal storm drains from roof area and rainfall rate

Compute fuel gas pipe size from appliance Btu input, run length, and gas specific gravity using the longest-length method

Complete two full-length timed practice exams and score 80 percent or higher on each

Re-work every missed item from weeks 1 through 7 into a single error log keyed by domain

Recite from memory the Arkansas licensing sequence and the permit and inspection steps

Drill weak domains until no domain scores below 70 percent