Question 90Gas Turbine - Assistant Engineer

The correct answer is C) Variable Stator Vane (VSV). A variable stator vane (VSV) is a type of axial compressor stator vane that can be mechanically adjusted to optimize compressor performance over a wide range of operating conditions. The ability to adjust the stator vanes allows the compressor to maintain high efficiency as the operating parameters, such as airflow and pressure, change. This makes the VSV design superior to fixed stator vanes for applications that require the compressor to operate across a broad operating envelope. The other answer choices are incorrect because: A) Variable Guide Vane (VGV) refers to adjustable inlet guide vanes, not stator vanes. B) Static Guide Vane (SGV) refers to fixed, non-adjustable stator vanes. D) Inlet Guide Vane (IGV) also refers to the adjustable inlet guide vanes, not the stator vanes.