Apart from reducing friction, what is the secondary purpose of the lubrication?

Question

Question

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ALP CBT 2 Fitter Previous Paper: Held on 23 Jan 2019 Shift 1

Answer 1

Explanation:

Lubricant:

With the movement of two mating parts of the machine, heat is generated.
If it is not controlled, the temperature may rise resulting in total damage to the mating parts.
Therefore a film of cooling medium with high viscosity is applied between the mating parts which are known as a ‘lubricant’.
A ‘lubricant’ is a substance having an oily property available in the form of fluid, semi-fluid, or solid-state.
It is the lifeblood of the machine, keeping the vital parts in perfect condition and prolonging the life of the machine.
It saves the machine and its parts from corrosion, wears, and tears and it minimizes friction.
The primary purpose of the lubrication system is to lubricate sliding surfaces and reduce friction losses in the engine while others are coming under secondary purposees.
Purpose of using lubricants
- Reduces friction
- Prevents wear
- Prevents adhesion
- Aids in distributing the load
- Cools the moving elements
- Prevents corrosion
- Improves machine efficiency