AMP - Aviation Maintenance Technician Powerplant Practice Exam

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Which of the following acts as a diffuser in a turbine engine and converts velocity to pressure?

  1. Impeller

  2. Manifold

  3. Stators

  4. Turbine blades

The correct answer is: Stators

Stators in a turbine engine work by gradually changing the direction of the airflow, slowing it down and increasing its pressure. This is important because it allows the turbine blades to operate more efficiently by converting the potential energy of the pressurized air into mechanical energy. The other options, impeller and turbine blades, do not convert velocity to pressure and instead rely on the existing air pressure to spin and create thrust. Manifold simply directs the air to the desired location and does not have any impact on pressure. Therefore, stators are the only component that act as a diffuser and convert velocity to pressure in a turbine engine.

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