Question 677Steam Plants - Assistant Engineer

The correct answer is C) secure shroud bands to turbine blading. Tenon peening is a technique used to secure shroud bands to the turbine blading. Shroud bands are important components that help stabilize the turbine blades and prevent them from vibrating excessively. By peening or deforming the tenon (a protruding part) on the shroud band, it becomes tightly fastened to the turbine blades, ensuring secure attachment. The other answer choices are incorrect because they do not accurately describe the purpose of tenon peening. Option A is incorrect as it does not involve securing the turbine blading to the rotor. Option B is incorrect as tenon peening is not a technique used for balancing the turbine rotor assembly. Option D is incorrect as tenon peening is not used to minimize turbine rotor axial thrust.