Petroleum Refinery Engineering Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to Improve its oxidation stability None of these Increase its smoke point Decrease the breathing loss Improve its oxidation stability None of these Increase its smoke point Decrease the breathing loss ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pressure & temperature maintained in catalytic cracking is about 2atm & 500°C 30atm & 200°C 10atm & 500°C 50atm. & 750°C 2atm & 500°C 30atm & 200°C 10atm & 500°C 50atm. & 750°C ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? Light gas oil Naphtha Diesel Vacuum residue Light gas oil Naphtha Diesel Vacuum residue ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the lowest cetane number? Aromatics Olefins I-paraffins Naphthene Aromatics Olefins I-paraffins Naphthene ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is not a sulphur compound present in petroleum ? Thiophenes Sulphones Pyroles Mercaptans Thiophenes Sulphones Pyroles Mercaptans ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the correct statement pertaining to catalytic cracking. With increase in the reactor pressure, octane number of gasoline decreases Percentage conversion increases with increase in the catalyst to oil ratio All of these With increase in the reactor temperature, gasoline yield decreases for a given conversion With increase in the reactor pressure, octane number of gasoline decreases Percentage conversion increases with increase in the catalyst to oil ratio All of these With increase in the reactor temperature, gasoline yield decreases for a given conversion ANSWER DOWNLOAD EXAMIANS APP
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