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.Management Sciences
Category: Petroleum Refinery Engineering
Catalyst used in catalytic polymerisation which produces polymer gasoline is_________________?
A. H2SO4
B. H3PO4
C. Both A. and B.
D. AlCl3
Pick out the correct statement pertaining to catalytic cracking ?
A. With increase in the reactor pressure, octane number of gasoline decreases
B. With increase in the reactor temperature, gasoline yield decreases for a given conversion
C. Percentage conversion increases with increase in the catalyst to oil ratio
D. All A., B. and C.
Which of the following has the highest gum forming tendency in gosoline ?
A. Paraffins
B. Diolefins
C. Aromatics
D. Naphthenes
Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene ?
A. Smoking tendency of hydrocarbons increases in the order: paraffins → isoparaffins →
naphthenes → aromatics
B. Smoking tendency of paraffins increases with decrease in its molecular weight
C. Smoking tendency of naphthenes decreases with its increasing molecular weight & also on
addition of double bond
D. Smoking tendency of aromatics decreases with increase in its molecular weight
Olefins are_________________?
A. Saturated hydrocarbons
B. Unsaturated cyclic compounds (hydrocarbons)
C. Present in substantially good quantity in crude petroleum
D. None of these
Most widely used solvent for dewaxing is__________________?
A. Methyl-ethyl-ketone (MEK)
B. Naphtha
C. Petroleum ether
D. Sodium plumbite
Which of the following processes is used for the production of petroleum coke ?
A. Stabilisation
B. Visbreaking
C. Cracking
D. Reforming
Petroleum coke is used mainly in the __________________ ?
A. Discoloration of yellow glycerine
B. Sugar refining
C. Manufacture of carbon electrode
D. Blast furnace for reduction of iron ore
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