Petroleum Refinery Engineering Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is Round about 100 Less than 25 More than 100 Between 50 and 100 Round about 100 Less than 25 More than 100 Between 50 and 100 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The order of preference for feedstock to a catalytic reformer is Virgin naphtha - catalytic naphtha - coking naphtha Catalytic naphtha - coking naphtha - virgin naphtha Virgin naphtha - coking naphtha - catalytic naphtha Coking naphtha - virgin naphtha - catalytic naphtha Virgin naphtha - catalytic naphtha - coking naphtha Catalytic naphtha - coking naphtha - virgin naphtha Virgin naphtha - coking naphtha - catalytic naphtha Coking naphtha - virgin naphtha - catalytic naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which parameter is used for the grading of paraffin waxes? Melting point Viscosity Specific gravity Penetration number Melting point Viscosity Specific gravity Penetration number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following processes in oil refinery does not employ 'cracking'? Coking Visbreaking None of these Pyrolysis Coking Visbreaking None of these Pyrolysis ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm. 25 5 100 10 25 5 100 10 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking Increased residence time results in the decreased severity of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking Increased residence time results in the decreased severity of cracking At low pressure, the yield of lighter hydrocarbons are more ANSWER DOWNLOAD EXAMIANS APP
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