Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration More than 98% promotes cracking Both A & B Less than 90% promotes polymerisation Neither A nor B More than 98% promotes cracking Both A & B Less than 90% promotes polymerisation Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). 100 25 50 5 100 25 50 5 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Cetane number of a diesel fuel is the measure of its Viscosity Oxidation stability Smoke point Ignition delay Viscosity Oxidation stability Smoke point Ignition delay ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel). 0.03 35 3 70 0.03 35 3 70 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Older crude petroleum Gives less tar All of these Gives more distillates Is light and better Gives less tar All of these Gives more distillates Is light and better 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 Aromatics Mercaptans Paraffins Naphthenic acid Aromatics Mercaptans ANSWER DOWNLOAD EXAMIANS APP
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