Question: The lubricating oils must be refined to remove ___
Options
A : Wax
B : Hydrocarbons
C : Nitrogen
D : Oxygen
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Classification of Lubricants - 4 more questions
Paraffins are mostly used as ___
Paraffins are obtained by __ process from petroleum.
Petrol captured the market up to the percentage of ___
The emulsifiers in water in oil type emulsions are __
To improve the refined petroleum oils ___ are added.
Cooling bath contains suitable __
In pour point experiment, the diameter of the cylindrical tube....
Pour point indicates the ___ of lubricating oil.
The cloudiness of the lubricant is observed for every ___
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