Fourth Year- First Term Chapter 6 Wear and Design Against Wear Failure Quiz

Corrosion is a chemical reaction between a material and its environment, which results in the material’s ____________.

Erosion is a physical-mechanical process of material removal by the flow of ________ or ________.

In analyzing a wear problem in a machine, it is necessary to determine the kind of wear that occurred and measure the ____________.

Tribology is the study of surfaces moving relative to another one, a phenomenon that affects our lives in a multitude of ways every day. (True/False)

Friction is generally proportional to load and the ____________ of sliding. (Fill in the blank with 1 word)

Wear is a mechanical process of material removal from a ________ or ________ component. (Fill in the blank with 2 words)

Tribology is the study of the principles of gravity, wear, and lubrication.

The word 'tribology' is derived from the Greek root (tribo) which means 'push' and the suffix - (logy) means 'study of' or 'knowledge of'.

Tribology is not an interdisciplinary science based on know-how and expertise from different fields.

Friction is the resistance to motion of one body moving against another.

Lubrication involves the use of a solid material to minimize friction and wear.

Wear is the gain of material due to motion.

Most mechanical components do not have one or more moving parts.

Friction is not affected by the materials, geometries, and surface features of the bodies in contact.

Generally, friction decreases with load and surface roughness.

In mining industry, wear is not a great problem in crushers and in bulldozer teeth.