Question

4. The moving parts of machines are oiled from
time to time.​

Answer 1

Answer:

A machine is oiled from time to time to reduce friction between its body parts. By doing so, the life span of a machine increases.

Answer 2

Lubrication is the application of oily or greasy substances, such as "lubricants," to minimise friction and allow the movement machine's pieces to glide pleasantly past one another.

Explanation:

• Friction is reduced by forming a layer between the two surfaces.
• Machine wear should be avoided.
• Corrosion resistance
• Cooling is accomplished by removing heat from the surface.
• Sealing
• Dirt particles are sent to the filter, which cleans it.
• Lubrication lowers friction, allowing moving machine parts to glide smoothly together. The automatic lubrication system offers numerous advantages over manual lubrication.