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MEO Class II – EK-Motor : 2022/NOV/06 – 2025/APR/03
Question

Q3. Express your reactions and state the subsequent investigation you would make if a laboratory report on a used diesel engine oil sample indicated the presence of appreciable amounts of: (16)

A. Iron

B. Copper

C. Antimony and Tin

D. Silicon

E. n-pentane and toluene insoluble.

Asked in Year/Month/Ques No.
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