Question 102Gas Turbine - Assistant Engineer

The correct answer is D) Regenerative cycle engine. In a regenerative cycle engine, the exhaust gas heat energy is used to preheat the air charge between the compressor and combustion chamber, improving the engine's efficiency. This is a key feature that distinguishes the regenerative cycle from the open cycle (A) and closed cycle (B) engine types. The semi-open cycle (C) is not a recognized engine classification, so it is not the correct answer. The other options do not accurately describe the use of exhaust gas heat recovery that characterizes the regenerative cycle engine.