Petroleum Refinery Engineering Choose the correct statement regarding thermal cracking. Moderate changes in operating temperature does not change the depth of cracking Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline At low pressure, the yield of lighter hydrocarbons are more Moderate changes in operating temperature does not change the depth of cracking Increased residence time results in the decreased severity of cracking Greater depth of cracking gives lower octane number gasoline At low pressure, the yield of lighter hydrocarbons are more ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Octane number of gasoline is a measure of its Smoke point Resistance to knock Ignition temperature Ignition delay Smoke point Resistance to knock Ignition temperature Ignition delay ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Which of the following is desirable in diesel and kerosene but is undersirable in gasoline? Paraffins Naphthenic acid Mercaptans Aromatics Paraffins Naphthenic acid Mercaptans Aromatics ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Crude oil is pumped by a __________ pump. Centrifugal Reciprocating Screw Gear Centrifugal Reciprocating Screw Gear ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering __________ converts n-paraffins to i-paraffins. Isomerisation None of these Polymerisation Alkylation Isomerisation None of these Polymerisation Alkylation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Natural gasoline is produced None of these By natural gas stripping In oil refineries From oil wells None of these By natural gas stripping In oil refineries From oil wells ANSWER DOWNLOAD EXAMIANS APP
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