[EWH2000]

Summary

Next bank in the quiz-growth arc: the Building Pressure quiz bank grows from 10 to 15 questions. With more questions than the page's defaultCount (10), the engine now picks a different 10 each run. Nothing is removed: the original ten questions are unchanged, and each new one tests a lesson passage the ten didn't cover.

Changes

html/_data/quizzes/building-pressure.js, additions only:

id	type	tests	anchor
bp-tracking-in-flow	mcq	Return-fan tracking holds its offset in measured flow, because a fixed speed offset holds no particular CFM gap	#relief-lineup
bp-tracking-offset-sizing	numeric	A commissioned offset meets a ledger that moved: 2,000 CFM commissioned + a 1,200 CFM kitchen hood added later = 3,200 CFM (re-scenarioed per the refuter, see below)	#relief-lineup
bp-vav-deposit-moves	tf	The VAV wrinkle: the outside air coming in changes with fan speed as well as damper position	#dampers-pressure
bp-windward-reference	gotcha	A building-static point that swings crisply is a bare windward reference tube reading gusts. The tech's belief that the loop needs more gain is the trap	#measuring-it
bp-duct-static-not-building	mcq	The "Not the same pressure" callout: a steady duct static tells you nothing about building static	#measuring-it (the callout has no id of its own, so the link goes to the section it sits in; the header comment says so)

• Header: adds the sampling note and a coverage sentence that names the lesson's sections without counting questions (same pattern as the air-handlers growth in quiz: grow air-handlers bank 10 → 15 [S] #609).
• Correct-answer letters: a0/b5/c3/d0 → a2/b5/c3/d1. In every new question the correct choice is no longer than the longest wrong choice.
• Metric figures: no new temperatures. Pressure and flow conversions follow the lesson's own (1.5 in. w.c. ↔ 375 Pa, ×1.7 for CFM → m³/h, as the existing numeric already does).
• Owner stances: "deadband" is used once and explained in the same sentence as a band around setpoint where the loop holds still. No vendor names. No "coming soon" wording; the VAV explanation points to the existing VAV Systems lesson.
• Not touched: defaultCount, the practice landing card and its pills, README counts, and the lesson itself. The FAQPage JSON-LD picked up the new questions on its own (15 Question entries in the built page).

Owner invitation: if you have a field gotcha of your own that beats any of these, swap it in. The windward-reference gotcha in particular would be better as a real story.

Test plan

• npm run build: clean, 140 files written
• tests/quiz-banks.spec.js: 42/42 passed
• tests/metric-spans.spec.js: 3/3 passed
• tests/link-integrity.spec.js: 4/4 passed
• tests/smoke.spec.js -g "practice — building pressure": 1/1 passed
• Throwaway Playwright probe on the built page (Questions = All, Order = sequential), not committed: every one of the 15 questions mounted, revealed and answered with no console or page errors. All 5 new questions appear in the Review table, and their Learn-more links go to #relief-lineup ×2, #dampers-pressure and #measuring-it ×2, all of which exist on the lesson.
• Owner read-through of the new prompts and explanations

Refuter fixes applied

Commit ef13ae5 (quiz: refuter fixes to the building-pressure bank):

• bp-tracking-offset-sizing: was a duplicate of bp-minimum-oa-sizing. Both asked the reader to add dedicated exhaust to the pressurization surplus. At minimum OA with the relief closed, the two are even the same physical quantity, so a sampled run could show the same addition twice under two names. The id and the #relief-lineup anchor stay. The question now tests the lesson beat nothing else covers, the widget's lesson that a stale offset meets a ledger that moved. Commissioned offset 1,500 + 500 = 2,000 CFM (2,550 + 850 = 3,400 m³/h). A 1,200 CFM (2,040 m³/h) kitchen hood is added later, so the offset must become 3,200 CFM (3,400 + 2,040 = 5,440 m³/h, which adds up from the displayed numbers). Left at 2,000, the building drifts negative whenever the hood runs. Answer 2000 → 3200, tolerance 50.
• One wording change from the refuter's suggested prompt: the hood is described as having "no makeup air of its own". A hood with its own makeup-air unit would leave the ledger unchanged, so without that clause a field reader could reasonably answer 2,000. This matches the lesson widget, where the hood has no makeup air.
• Header: the coverage clause "what the offset is made of" now reads "what happens to a commissioned offset when the ledger moves" (comment reflowed).
• Re-run after the fix: tests/quiz-banks.spec.js 42/42, tests/metric-spans.spec.js 3/3, tests/link-integrity.spec.js 4/4 (49 passed, 0 failed).

Merge authority

Quiz bank renders into a live practice page → owner merges.

🤖 Generated with Claude Code

[cloudflare-workers-and-pages]

Deploying with    Cloudflare Workers

The latest updates on your project. Learn more about integrating Git with Workers.

Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	controlsfreak	ef13ae5	Commit Preview URL Branch Preview URL	Oct 07 2026, 01:27 AM