Petroleum Refinery Engineering Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm² is maintained during cracking mainly to Increase the yield of light distillates Reduce gum content in gasoline Suppress coke formation Enhance the octane number of gasoline Increase the yield of light distillates Reduce gum content in gasoline Suppress coke formation Enhance the octane number of gasoline 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 Aromatics content Both A & B Molecular weight Neither A nor B Aromatics content Both A & B Molecular weight Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Aniline point is the temperature at which Aniline vaporises Equal volume of aniline & the test sample are completely miscible Equal weight of aniline & the test sample are completely miscible Equal weight of diesel & the aniline are completely miscible Aniline vaporises Equal volume of aniline & the test sample are completely miscible Equal weight of aniline & the test sample are completely miscible Equal weight of diesel & the aniline are completely miscible ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones. Nitrogen decreases None of these Sulphur decreases Sulphur increases Nitrogen decreases None of these Sulphur decreases Sulphur increases ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering The most important property for a jet fuel is its Viscosity Flash point Freezing point Calorific value Viscosity Flash point Freezing point Calorific value ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Operating temperature and pressure in catalytic reforming is about 5-10 kgf/cm² & 150 - 250°C 50 - 75 kgf/cm² & 600 - 800°C 15-45 Kgf/cm² & 450-550°C 1-5 Kgf/cm² & 200°C 5-10 kgf/cm² & 150 - 250°C 50 - 75 kgf/cm² & 600 - 800°C 15-45 Kgf/cm² & 450-550°C 1-5 Kgf/cm² & 200°C ANSWER DOWNLOAD EXAMIANS APP
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