Petroleum Refinery Engineering Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of Coking Thermal cracking Gum formation Discoloration Coking Thermal cracking Gum formation Discoloration ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following petroleum products contain minimum sulphur? Kerosene Naphtha Furnace oil LSHS Kerosene Naphtha Furnace oil LSHS ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating. 15 60 5 40 15 60 5 40 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to Increase its smoke point Improve its oxidation stability None of these Decrease the breathing loss Increase its smoke point Improve its oxidation stability None of these Decrease the breathing loss ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In catalytic cracking, the Gasoline obtained has very high aromatic content Gasoline obtained has a very low octane number Pressure & temperature is very high Gasoline obtained has very high amount of gum forming compounds Gasoline obtained has very high aromatic content Gasoline obtained has a very low octane number Pressure & temperature is very high Gasoline obtained has very high amount of gum forming compounds ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Mercaptans are Low boiling sulphur compounds All of these Undesirable in petrol, as they reduce its octane number Added in LPG cylinders to detect gas leakage by its smell Low boiling sulphur compounds All of these Undesirable in petrol, as they reduce its octane number Added in LPG cylinders to detect gas leakage by its smell ANSWER DOWNLOAD EXAMIANS APP
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