Which item is a Hot Section Module Component?

• A. Exhaust Frame
• B. C-Sump Housing
• C. P3 Air Port
• D. Combustion Liner

Answer: (D)

The main concept is identifying which components belong to the Hot Section Module of a turbine engine—the parts that actually handle the highest temperatures in the engine. The combustion liner is the inner wall of the combustor where the fuel-air mixture burns, so it must withstand direct flame and extreme heat. That makes it a classic hot-section component.

The other items don’t belong to the hot section. The exhaust frame is part of the exhaust area and serves more as structural support around the hot gases rather than a primary hot-section component. The P3 air port is a pressure sampling/measurement port, not a component that handles hot combustion gases. The C-sump housing houses oil and is part of the lubrication system, located away from the hot gas path. So the combustion liner is the component that fits squarely in the hot-section module.