Tribology is one of the most important terminologies used in the industry. It is basically a branch of engineering which deals with the relative motion between two or more interacting bodies in contact. The tribology study majorly depends on friction, wear, and lubrication aspects. Let us understand and get the idea of the Most important interview or viva questions related to tribology.
1. Define 'Tribology'.
Tribology is made up of two Greek words, 'Tribo' and 'Logy'. Tribos means rubbing and logia or logy means to study or knowledge. A study that deals with the bodies in relative motion including rubbing actions at design or production or operation stages.
2. What is the role of lubrication in minimizing the losses during machine operation?
Lubrication is a process by which a lubricant is supplied between the bodies in relative motion in order to reduce the contact between them during the operation. The lubricant helps to reduce the friction and hence by reducing the wear and minimizing the power losses. The lubrication also helps to carry away the heat generated due to friction.
3. Give a few examples of desirable friction and desirable wear.
Walking on the earth, braking, clutching are few examples of desirable friction and matching of any material, writing with pencils, etc. are examples of desirable wear.
4. Give a few examples/applications of maximum friction and minimum wear
Maximum friction means friction should assist us in a given application and minimum wear means, wear is undesirable in such application. Brake lining, clutch, tyres are examples of desirable friction with undesirable wear.
5. Give a few examples/applications of minimum friction and minimum wear
Bearings and gears are examples of minimum friction and minimum wear. In these examples, both friction and wear are undesirable.
6. Can you give a few comments on the design or ergonomics tribological aspects of the pen?
The function of the pen is to write. We need to design a pen in such a way that gives us less friction while writing (lucid writing experience). Second, in gripping, the pen should be designed to give a better grip with fingers to make it convenient to grip perfectly while writing. The diameter of the pen should be well within the range to give a smooth writing experience. So, all factors lead to a better pen design.