Petroleum Refinery Engineering Waxes present in petroleum products Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity Are not soluble in them Can be separated out by distillation Crystallise out at low temperature Decrease their viscosity Are not soluble in them 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 Neither A nor B Both A & B Molecular weight Aromatics content Neither A nor B Both A & B Molecular weight Aromatics content ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Lane and Garton classification of petroleum is based on its Specific gravity Optical properties Viscosity Composition Specific gravity Optical properties Viscosity Composition ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Moderate changes in operating temperature does not change the depth of cracking Greater depth of cracking gives lower octane number gasoline At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking Moderate changes in operating temperature does not change the depth of cracking Greater depth of cracking gives lower octane number gasoline At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Name the hydrocarbon having the poorest oxidation stability. Paraffin Aromatics Olefin Naphthene Paraffin Aromatics Olefin Naphthene ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering With increase in the number of carbon and hydrogen atoms in hydrocarbon molecules, the density of petroleum products Decreases Unpredictable from the data Remains same Increases Decreases Unpredictable from the data Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
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