Executive Manager Interview Questions and Answers for Freshers

Turbine blades are coated with thermal barrier coatings (TBCs) to protect them from high temperatures and corrosion.

• TBCs are made of ceramic materials such as zirconia and alumina

• TBCs help to reduce the heat transfer from the hot gas to the blade

• TBCs also protect the blade from oxidation and corrosion

• Other coatings such as thermal spray coatings and diffusion coatings are also used for turbine blades

• Thermal spray coatings are made of metals such as nickel and cobalt

• Diffusion ...read more

Stainless steel is corrosion-resistant due to the presence of chromium.

• Chromium forms a thin layer of oxide on the surface of the steel, which prevents further corrosion.

• The amount of chromium in stainless steel determines its level of corrosion resistance.

• Other elements like nickel and molybdenum can also contribute to corrosion resistance.

• Stainless steel is commonly used in applications where corrosion resistance is important, such as in the food and medical industries.

BHEL manufactures power generation equipment, transmission systems, transportation equipment, and industrial products.

• BHEL manufactures power generation equipment such as boilers, turbines, and generators.

• They also manufacture transmission systems like transformers and switchgears.

• BHEL produces transportation equipment such as locomotives and electric vehicles.

• They manufacture industrial products like valves, heat exchangers, and pumps.

• BHEL has also diversified into renewable...read more