Petroleum Refinery Engineering Feedstock for polymerisation is Cracked gases rich in C₂ & C₄ olefins None of these Low boiling aromatics Naphtha Cracked gases rich in C₂ & C₄ olefins None of these Low boiling aromatics Naphtha ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following gasolines (unleaded) has the least octane number? Polymer gasoline Straight run gasoline Catalytically reformed gasoline Catalytically cracked gasoline Polymer gasoline Straight run gasoline Catalytically reformed gasoline Catalytically cracked gasoline ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction Heavy distillates Intermediate distillates Residues Light ends Heavy distillates Intermediate distillates Residues Light ends ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Smoke point of a good burning kerosene may be around __________ mm. 20-25 60-75 0-5 100-120 20-25 60-75 0-5 100-120 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline Increased residence time results in the decreased severity of cracking Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Greater depth of cracking gives lower octane number gasoline Increased residence time results in the decreased severity of cracking ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Antioxidants are added in petrol to Minimise the gum formation Impart colour to it, for easy identification Prevent icing of the carburettor Prevent the lead build up in engines Minimise the gum formation Impart colour to it, for easy identification Prevent icing of the carburettor Prevent the lead build up in engines ANSWER DOWNLOAD EXAMIANS APP
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