Question 595Steam Plants - Assistant Engineer

The correct answer is C) Reaction. In a reaction turbine, there is a pressure drop through both the fixed blades (stator) and the moving blades (rotor). This pressure drop across the blades is a key characteristic of reaction turbines, which rely on the change in pressure and velocity of the working fluid to generate power. The other options are not correct because: A) Curtis and D) Impulse turbines do not have a pressure drop through the moving blades, only through the fixed blades. B) Rateau turbines are a type of impulse turbine, which also do not have a pressure drop through the moving blades.