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The lubricating oil is volatilises then the formed vapour __________

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The lubricating oil is volatilises then the formed vapour __________

(a) Must be less

(b) Must be high

(c) Non-inflammable

(d) Flammable

I had been asked this question during an interview for a job.

This intriguing question originated from Lubricants General Questions in portion Lubricants of Applied Chemistry

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Correct answer is (c) Non-inflammable

The explanation is: Many times the lubricant in use must face the high temperatures. The good lubricating oil must not volatilises even if volatilises its vapours should not catch the fire.

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