EXAMIANS
Solvent used for dewaxing of petroleum products are
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Detergent is added as an additive in engine lubricating oil to
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The terminology used for the bottom most product from the vacuum crude distillation unit is
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The best method of determining sulphur in crude oil is by the __________ method.
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Which of the following has the highest gum forming tendency in gosoline?
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Cetane number of a diesel fuel is the measure of its
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Research octane number refers to the
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Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
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__________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation.
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Paraffin base crude oil as compared to asphalt base crude gives
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