Petroleum Refinery Engineering Thermofer catalytic cracking process is a __________ process. Fluidised bed Fixed bed Non-catalytic Moving bed Fluidised bed Fixed bed Non-catalytic Moving bed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Testing of the knocking characteristics of petrofuels is done in a __________ engine. Carnot Diesel Stirling CFR (Co-operative fuel research) Carnot Diesel Stirling CFR (Co-operative fuel research) ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering True vapour pressure of a petroleum fraction __________ Reid vapour pressure. May be either more or less than Is more than Is same as Is less than May be either more or less than Is more than Is same as Is less than ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Antioxidants are added in petrol to Minimise the gum formation Impart colour to it, for easy identification Prevent icing of the carburettor Prevent the lead build up in engines Minimise the gum formation Impart colour to it, for easy identification Prevent icing of the carburettor Prevent the lead build up in engines ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration Both A & B Less than 90% promotes polymerisation More than 98% promotes cracking Neither A nor B Both A & B Less than 90% promotes polymerisation More than 98% promotes cracking Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene. Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of paraffins increases with decrease in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
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