Which component absorbs pressure energy from exhaust gases and transforms it into energy?

• A. air inlet
• B. compressor
• C. exhaust
• D. turbine

Answer: (D)

In a gas turbine system, the turbine is responsible for converting energy carried by the hot, high-pressure exhaust gases into mechanical energy. As the gases expand and pass through the turbine blades, they transfer energy to the rotor, causing the turbine shaft to spin. That shaft power is what drives the compressor and other accessories, keeping the engine cycle going. The air inlet simply brings air in, the compressor increases the air’s pressure, and the exhaust channel carries away the spent gases after energy has been extracted. So the turbine is the component that absorbs energy from the exhaust and converts it into shaft work.