Petroleum Refinery Engineering Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to Decrease the breathing loss Improve its oxidation stability Increase its smoke point None of these Decrease the breathing loss Improve its oxidation stability Increase its smoke point None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Cracking is An endothermic reaction None of these An exothermic reaction Favoured at very low temperature An endothermic reaction None of these An exothermic reaction Favoured at very low temperature ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The terminology used for the bottom most product from the vacuum crude distillation unit is Residuum Petrolatum Residual crude Reduced crude Residuum Petrolatum Residual crude Reduced crude ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pressure & temperature maintained in catalytic cracking is about 10atm & 500°C 30atm & 200°C 2atm & 500°C 50atm. & 750°C 10atm & 500°C 30atm & 200°C 2atm & 500°C 50atm. & 750°C ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its Molecular weight Aromatics content Both A & B Neither A nor B Molecular weight Aromatics content Both A & B 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 naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of paraffins increases with decrease in its molecular weight Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics Smoking tendency of aromatics decreases with increase in its molecular weight Smoking tendency of paraffins increases with decrease in its molecular weight ANSWER DOWNLOAD EXAMIANS APP
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