Petroleum Refinery Engineering Deoiling of wax is done by its Cooling Solvent extraction Both B & C Heating Cooling Solvent extraction Both B & C Heating ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Petroleum Does not contain asphalt Constitutes mainly of olefins Is optically active Does not contain aromatics Does not contain asphalt Constitutes mainly of olefins Is optically active Does not contain aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In catalytic alkylation, higher iso-butane to olefin ratio gives Neither A nor B Higher yield Both A & B Low final boiling point product Neither A nor B Higher yield Both A & B Low final boiling point product ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pour point of a petrofuel is 5°C below the temperature at which oil ceases to flow Multiple of 5°F None of these Multiple of 3°F 5°C below the temperature at which oil ceases to flow Multiple of 5°F None of these Multiple of 3°F ANSWER DOWNLOAD EXAMIANS APP
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 Suppress coke formation Reduce gum content in gasoline Increase the yield of light distillates Enhance the octane number of gasoline Suppress coke formation Reduce gum content in gasoline Increase the yield of light distillates Enhance the octane number of gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is 4 1 3 2 4 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
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