Question 634Steam Plants - Assistant Engineer

The correct answer is D) After the last stage of the ahead rotor blading. Moisture shields are located after the last stage of the ahead rotor blading in a main propulsion steam turbine. This placement helps prevent water droplets from damaging the turbine blades and other internal components. The moisture shields capture and divert any condensed moisture away from the critical areas of the turbine, ensuring smooth and efficient operation. The other options are incorrect because they do not represent the proper location of the moisture shields within the steam turbine. The steam strainer, throttle valve stems, and inner stage diaphragms are not the appropriate places for the moisture shields in a main propulsion steam turbine.