Plumbing (P) Plan Set — Comprehensive Essay Test

Complete all responses, then submit to education@sfjohnsonconsulting.com.

Student Name: 1. Explain plan symbols for domestic water, sanitary, vent, and gas, and how to trace each system. 2. Describe fixture schedules and how to verify rough-in heights, carriers, and trap/venting requirements. 3. Discuss riser diagrams and how they coordinate with plan views for vertical routing and venting. 4. Summarize slope requirements for sanitary and storm and how to catch conflicts at long runs. 5. Explain backflow prevention, PRVs, and water heater sizing considerations. 6. Evaluate grease/oil interceptors, cleanouts, and maintenance access in commercial work. 7. Describe roof drains, overflow systems, and coordination with structural and architectural. 8. Identify gas system pressure, regulators, and equipment demands for proper sizing. 9. Outline a plumbing takeoff workflow for fixtures, pipe, fittings, valves, and insulation. 10. Discuss common RFIs in plumbing sets and how to document clarifications. Responses will be sent to education@sfjohnsonconsulting.com for grading.

Instructor Answer Key — Unlock After Review

1. Color/line conventions; trace supply/return/vent/gas by tags/arrows.

2. Schedules define models/flows/rough-ins; verify carriers, ADA heights.

3. Risers show stacks/vents/elevations; cross-check with plan routing.

4. Min slopes per code; long runs risk conflicts/elevation loss.

5. Backflow at service; PRVs by pressure; WH sizing by demand/recovery.

6. Interceptor sizing by DFU/flows; cleanouts at intervals/changes.

7. Roof drains with overflow; verify structural sleeves/locations.

8. Total BTU demands; pressure drop; regulators/venting.

9. Count fixtures; measure pipe by system; include valves/insulation/hangers.

10. Missing elevations, unclear vents, conflicts at shafts/structure.

P Plan Test

Plumbing (P) Plan Set — Comprehensive Essay Test

Instructor Answer Key — Unlock After Review

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