Petroleum Refinery Engineering Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of Methane & ethane Methane & carbon monoxide Butane & ethane Propane & butane Methane & ethane Methane & carbon monoxide Butane & ethane Propane & butane 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 Reduce gum content in gasoline Increase the yield of light distillates Suppress coke formation Enhance the octane number of gasoline Reduce gum content in gasoline Increase the yield of light distillates Suppress coke formation Enhance the octane number of gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Detergent is added as an additive in engine lubricating oil to Keep contaminants in suspension Prevent rusting Reduce deposit formation Increase oxidation stability Keep contaminants in suspension Prevent rusting Reduce deposit formation Increase oxidation stability ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Maximum use of petroleum coke is in Iron ore reduction Carbon electrode manufacture Fuel gas manufacture Adsorption refining operation Iron ore reduction Carbon electrode manufacture Fuel gas manufacture Adsorption refining operation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Name the hydrocarbon having the poorest oxidation stability. Paraffin Olefin Naphthene Aromatics Paraffin Olefin Naphthene Aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pick out the correct statement pertaining to catalytic cracking. With increase in the reactor pressure, octane number of gasoline decreases With increase in the reactor temperature, gasoline yield decreases for a given conversion All of these Percentage conversion increases with increase in the catalyst to oil ratio With increase in the reactor pressure, octane number of gasoline decreases With increase in the reactor temperature, gasoline yield decreases for a given conversion All of these Percentage conversion increases with increase in the catalyst to oil ratio ANSWER DOWNLOAD EXAMIANS APP
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