LIVE PE PRACTICE · MULTI-AGENT REVIEWED
PE Mechanical: HVAC and Refrigeration
2 original questions are live now. Every released item is bound to three distinct answer-hidden Agent reviews, executable math and unit checks, and the production scorer and figure renderer.
4specification domains
19source-bound QMAPS atoms
2reviewed questions live
10candidate mock forms
4-domain coverage
The released set is a focused first production slice inside this broader source-bound catalog. Catalog weights remain planning metadata; the live count above is the learner-facing claim.
Connected candidate content
1,080Question bank
10Full mock forms
100Atomic lessons
120Macro lessons
120Study guides
500Flashcards
19Ebook sections
19Knowledge Map nodes
PRODUCTION ACCESS
Open the reviewed PE practice set
Start PE practice →One active Max subscription — including the automatic no-card seven-day registration trial — unlocks every released FE and PE discipline. AI Credits continue to use the existing balance and deduction rules.