❄️ Refrigeration Estimating — Exam Studio
10-module estimating curriculum with blueprint-weighted drills, timed simulator, PSI-style rationales, essays, and rubric scoring.
ConstructIQ • S.F. Johnson Consulting & Construction Services, LLC
How to Use
- Select a module below or choose All-Module Mixed Drill.
- (Optional) Set the Timer and press Start. At 00:00, auto-grade runs.
- Answer 5 questions per module (50 total across the suite). Click Grade My Test.
- Review rationales; statuses save per module in this browser.
- Complete the essay prompt and self-score with the weighted rubric; download your response.
Study support only. Verify with current codes, manufacturer data, and owner specs.
Modules
Scope types (reach-in, walk-in, racks), CSI divisions, bid forms.
Sensible/latent, TDs, BTUH, load drivers; diversity & usage profiles.
Condensing units, compressors, evap/coils, condensers, heaters, cases.
Suction/liquid/discharge, sizing, traps, oil mgmt, receivers, driers.
EEV vs TXV, pressure/defrost controls, BMS, wiring allowances.
Vapor barriers, thickness selection, hangers, roof penetrations.
Selection, A2L readiness, EPA 608, recovery/charge allowances.
Crew mixes, brazing vs press, leak test/vacuum, commissioning hours.
Build assemblies; quotes; freight/lift/crane; burden/markup.
Pressure test, evacuation, charge, SH/SC targets, startup sheets, O&M.
Statuses: ⬜ Not Started • 🟨 In Progress • ✅ Completed
Open-Book Reference Chips
- ASHRAE Handbooks (Refrigeration, Fundamentals)
- OEM Case/Coil/Condensing Unit Data
- Piping Line-Sizing Tables (R-448A/449A/410A, A2Ls)
- Insulation/Vapor Barrier Guides
- EPA 608 & Refrigerant Management
- Pressure Test & Evacuation Best Practices
- Controls & BMS Integration Manuals
- Rigging/Lift/Crane Vendor Quotes
- CSI Divisions & Bid Form Samples
- Commissioning Checklists & O&M
Swap these with live links to your PDFs later.
Timed Simulator
Essay Practice & Weighted Rubric
Draft the requested plan; text saves locally in this browser.
Prompt
Create a Refrigeration Estimating & Commissioning Plan for a mixed lineup (reach-ins + small walk-in) on R-448A: include scope boundaries, equipment schedule, case counts and accessories, line-set routing and sizing rationale (suction/liquid/discharge), oil management approach, insulation thickness & vapor barrier details, controls/BMS allowances, labor assumptions (brazing vs press), pressure test/evacuation timing, charge estimate & cylinders, startup checks (superheat/subcool targets), and turnover documents (startup sheets/O&M/as-builts).
Tip Justify key quantities using references (tables, OEM data, or past project norms).
Rubric
Rubric Score: 0%