Cessna 152 Pilot’s Operating Handbook (POH) Practice Exam 2026 - Free Cessna 152 POH Practice Questions and Study Guide

The air intake characteristics describe whether the engine breathes air at atmospheric pressure or has forced induction to push more air into the cylinders. The Lycoming O-235-N2C is normally aspirated, meaning it relies on ambient atmospheric air without any turbocharger or supercharger to compress the intake air. There’s no intercooler in this setup because there’s no compressed air to cool. As a result, intake air density decreases with altitude, causing power loss compared to engines that use forced induction to maintain higher manifold pressures at altitude.