Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration Both A & B Neither A nor B More than 98% promotes cracking Less than 90% promotes polymerisation Both A & B Neither A nor B More than 98% promotes cracking Less than 90% promotes polymerisation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the undesirable property for a solvent meant for dewaxing of lube oil. Neither A nor B High solubility of wax in the solvent Complete miscibility with oil Both A & B Neither A nor B High solubility of wax in the solvent Complete miscibility with oil Both A & B ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the highest gum forming tendency in gosoline? Diolefins Naphthenes Paraffins Aromatics Diolefins Naphthenes Paraffins Aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pressure & temperature maintained in catalytic cracking is about 10atm & 500°C 50atm. & 750°C 30atm & 200°C 2atm & 500°C 10atm & 500°C 50atm. & 750°C 30atm & 200°C 2atm & 500°C ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering A multigrade lubricating oil means an oil having high Flash point Viscosity index Viscosity Aniline point Flash point Viscosity index Viscosity Aniline point ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering LPG when brought to atmospheric pressure & temperature will be a Liquid lighter than water Liquid heavier than water Gas lighter than air Gas heavier than air Liquid lighter than water Liquid heavier than water Gas lighter than air Gas heavier than air ANSWER DOWNLOAD EXAMIANS APP
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