Answer is:
Viscosity
Explanation:
The most important quality of any lubricant is Viscosity.
![The most important quality of any lubricant is](https://mcqfinder.in/uploads/images/objective-questions/turner-set-1-lubricants-and-coolants/turner-set-1-lubricants-and-coolants-id-16-e.jpg)
Answer is:
Add soluble oil to the water
Explanation:
Adding soluble oil to the water is one of the best way for preparing an emulsion.
Answer is:
With high pressure jet
Explanation:
With high pressure jet is common method for applying cutting fluid on the tool point .
Answer is:
Dry air
Explanation:
While machining cast iron, the coolant used should be Dry air.