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
Petroleum Refinery Engineering Which of the following has the highest viscosity of all (at a given temperature)? Fuel oil Petrol Light diesel oil Naphtha Fuel oil Petrol Light diesel oil Naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely mis-cible. It means that the aniline point of the diesel is __________ the room temperature. More than Either more or less; depends on the room temperature Same as Less than More than Either more or less; depends on the room temperature Same as Less than ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which is the most undesirable component in kerosene? N-paraffins I-paraffins Aromatics Naphthenes N-paraffins I-paraffins Aromatics Naphthenes ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? Diesel Naphtha Light gas oil Vacuum residue Diesel Naphtha Light gas oil Vacuum residue ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Waxes present in petroleum products Are not soluble in them Decrease their viscosity Can be separated out by distillation Crystallise out at low temperature Are not soluble in them Decrease their viscosity Can be separated out by distillation Crystallise out at low temperature ANSWER DOWNLOAD EXAMIANS APP
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