Tribology And Maintenance Engineering (ME-802 (B)) - Important Questions

Suggest two coating methods to improve high temperature oxidation and corrosion resistance.

Explain advantages and disadvantages of the electroplating method.

Explain geometrical parameters of a coating.

What are the historical developments and industrial significance of tribology?

Define elastic half-spaces/spheres in contact mechanics.

Define electroplating.

Explain microstructural treatments of coatings.

Describe the hard facing coating technique with the help of a sketch.

List the assumptions in Hertzian analysis of contact between surfaces.

Differentiate between conforming and non-conforming contact.

Describe the physical vapour deposition (PVD) coating technique with the help of a sketch.

State Amontons' laws of friction and explain the exceptions to these laws.

List out any three friction measuring equipment. Explain any one of the methods in detail.

Explain Stick slip phenomenon.

Explain any two factors affecting friction.

Methods to reduce the adhesive component of friction

Explanation of Bowden-Tabor theory of friction

Define wear and explain any two types of wear.

Mention any five factors affecting wear and explain them.

Suggest any two methods of coating to acidic environments.

Explain the different types of bearings/lubrication regimes based on lubricant film thickness, including hydrodynamic and elastohydrodynamic lubrication.

Explain the classification of bearings based on the applied load.

Explain the advantages and disadvantages of cylindrical roller bearings.