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BTU Logic

Question of the day / Oct 14, 2026

PE-level practice

Economizer high-limit that compares OA and RA enthalpy

Oct 14, 2026 · America/New_York

BATCPE

An AHU economizer high-limit disables free cooling when outdoor-air enthalpy exceeds return-air enthalpy. Which strategy is that?

Answer choices

Pick an answer, then check. The key is not on this page.

Practice only — not PE exam credit, not an NCEES item, not a PE stamp, and not a substitute for licensed professional judgment or licensure. Original workbench questions for discussion. Verify against current codes and your own calculations. Terms