Petroleum Engineering Question:
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Most widely used solvent for dewaxing is

A. methyl-ethyl-ketone (MEK)
B. naphtha
C. petroleum ether
D. sodium plumbite

Answer:

Option A

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A multi grade lubricating oil means an oil having high

A. viscosity index
B. viscosity
C. aniline point
D. flash point
Diesel used in naval applications has a minimum cetane number of

A. 25
B. 35
C. 45
D. 65