For machines operating at the high speed and low pressure __________ are used.(a) Heavy oils(b) Light oils(c) Crude oils(d) Diesel oilThis question was addressed to me at a job interview.This intriguing question originated from Viscosity and Viscosity Index topic in chapter Lubricants of Applied Chemistry

For machines operating at the high speed and low pressure __________ a

1.	For machines operating at the high speed and low pressure __________ are used.(a) Heavy oils(b) Light oils(c) Crude oils(d) Diesel oilThis question was addressed to me at a job interview.This intriguing question originated from Viscosity and Viscosity Index topic in chapter Lubricants of Applied Chemistry
Answer» The correct option is (B) Light oils The EXPLANATION is: For machines operating at the high speed and low pressure, the lubricating OIL use is light oil. The light oil do not impose as much drag on high speed parts. THEREFORE, for the minimum friction, the thinner oil STAYS at position.

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