The lubricants that are suitable for internal combustion engines must have ______ viscosity index.(a) high(b) low(c) no(d) minimumI have been asked this question by my school principal while I was bunking the class.I want to ask this question from Selection of Lubricants in portion Lubricants of Applied Chemistry

The lubricants that are suitable for internal combustion engines must

1.	The lubricants that are suitable for internal combustion engines must have ______ viscosity index.(a) high(b) low(c) no(d) minimumI have been asked this question by my school principal while I was bunking the class.I want to ask this question from Selection of Lubricants in portion Lubricants of Applied Chemistry
Answer» CORRECT answer is (a) high For explanation I would say: The lubricant that is used in internal combustion ENGINES must have the high VISCOSITY index because it is EXPOSED very high temperatures that are produced by the engines.

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