Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline Moderate changes in operating temperature does not change the depth of cracking At low pressure, the yield of lighter hydrocarbons are more ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Pour point of a petrofuel is Multiple of 3°F None of these Multiple of 5°F 5°C below the temperature at which oil ceases to flow Multiple of 3°F None of these Multiple of 5°F 5°C below the temperature at which oil ceases to flow ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Diesel index is defined as (°API) x (Aniline Point, °F)/100 (°API) x (100)/Aniline Point, °F (°API) x (100)/Aniline Point, °C (°API) x (Aniline Point, °C)/100 (°API) x (Aniline Point, °F)/100 (°API) x (100)/Aniline Point, °F (°API) x (100)/Aniline Point, °C (°API) x (Aniline Point, °C)/100 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Reforming Improves the quality & yield of gasoline Uses naphtha as feedstock All of these Does not much affect the molecular weight of the feed Improves the quality & yield of gasoline Uses naphtha as feedstock All of these Does not much affect the molecular weight of the feed ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is desirable in diesel and kerosene but is undersirable in gasoline? Paraffins Mercaptans Naphthenic acid Aromatics Paraffins Mercaptans Naphthenic acid Aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Molecular weight of crude oil is in the range of 100-120 230-250 450-550 600-850 100-120 230-250 450-550 600-850 ANSWER DOWNLOAD EXAMIANS APP
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