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 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 Suppress coke formation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the All of these Elimination of solvent drying facility Higher nitration temperature Lower solvent dilution ratio All of these Elimination of solvent drying facility Higher nitration temperature Lower solvent dilution ratio ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following has the highest viscosity of all (at a given temperature)? Petrol Naphtha Fuel oil Light diesel oil Petrol Naphtha Fuel oil Light diesel oil ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with Ethyl alcohol Methane Ethane Methyl alcohol Ethyl alcohol Methane Ethane Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is desirable in diesel and kerosene but is undersirable in gasoline? Naphthenic acid Paraffins Mercaptans Aromatics Naphthenic acid Paraffins Mercaptans Aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Quinoline is a/an __________ compound. Sulphur None of these Nitrogen Oxygen Sulphur None of these Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
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