Option D
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene. A. smoke point B. paraffins C. aromatics D. naphthenes
Asphalts are A. low molecular weight & low boiling point compounds present in petroleum. B. desirable in catalytic cracking feedstock, because they produce coke. C. readily oxidisable and form carbonaceous sludge. D. all (a), (b) & (c).
Products drawn from the top to bottom of the crude oil distillation column has progressively increasing A. boiling points B. molecular weight C. C/H ratio D. all (a), (b) and (c)
Which of the following is used as a solvent in deasphalting of petroleum products? A. Furfural B. Propane C. Methyl ethyl ketone D. Liquid sulphur dioxide
Which of the following processes in oil refinery does not employ 'cracking'? A. Coking B. Visbreaking C. Pyrolysis D. None of these
Aniline point test of an oil qualitatively indicates the __________ content of an oil. A. paraffin B. olefin C. aromatic D. naphthene
Which of the following has the highest gum forming tendency in gosoline? A. Paraffins B. Diolefins C. Aromatics D. Naphthenes
Bottom product of atmospheric pressure crude oil distillation column is termed as A. reduced crude B. heavy ends C. asphalt D. residuum
The most important property for a jet fuel is its A. viscosity B. freezing point C. calorific value D. flash point
Higher viscosity of lubricating oil usually signifies A. lower Reid vapour pressure. B. higher acid number. C. higher flash point and fire point. D. lower flash point and fire point.
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