Question

A lubricant should not corrode the working parts and it must retain its properties even in the presence of foreign matter and additives.

(a) True

(b) False

I got this question during a job interview.

The query is from Properties of Lubrication in section Engine Friction and Lubrication of IC Engine

Answer 1

The correct answer is:

(a) True

A lubricant should not corrode the working parts of the engine. It must also retain its properties even in the presence of foreign matter (such as dust or water) and additives. This ensures that the lubricant continues to perform its function of reducing friction, preventing wear, and protecting engine components throughout the engine's lifespan.