Question

Which among the following is not the main function of lubricating oil? 

A to maintain the temperature of engine Correct Answer Incorrect Answer
B to reduce the friction Correct Answer Incorrect Answer
C to reduce wear and tear Correct Answer Incorrect Answer
D to take away the heat from piston Correct Answer Incorrect Answer
E to act as seal between piston and cylinder Correct Answer Incorrect Answer

Solution

There are 6 Basic Functions of a Lubricant/Oil. Lubrication – Provide a film between moving parts. Cooling – Heat transfer media. Sealing – Filling in uneven surfaces Cleaning – Holding contaminants in suspension. Dampening & Cushioning – Of components under high stress. Protection – From oxidation & corrosion.

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