Question

For delicate instruments like watches,clocks which oil is suitable​

Answer 1

Explanation:

Fluid Film or Thick film or Hydrodynamic lubrication:

This type of lubrication is used in delicate instruments and light machines like watches, clocks, guns, etc. Hydrocarbon oils are considered to the satisfactory lubricants for fluid-film lubrication.

Answer 2

Answer:

Synthetic oil: Synthetic oil is used for the lubrication of delicate mechanical instruments.

Explanation:

Lubrication:

Lubrication is a method in which a substance that has lubricating properties like oil, grease, etc is added between the two moving solid surfaces in machines to reduce friction and wear.

Synthetic oil:

• Synthetic oil is a lubricating compound that is artificially made with the help of chemicals.
• In delicate mechanical instruments like watches, it is necessary to do regular lubrication for proper working and to prevent the wear of instruments.
• Synthetic oil is best for the lubrication of delicate machinery because it won't gum up in low temperature like natural oil and do not hinder proper working.
• It evaporates after the completion of lifespan and does not leave any residue.

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