Petroleum Refinery Engineering Crude oil is subjected to vacuum distillation in the last stage, because High purity products can be obtained thereby Lighter/low boiling products are prone to thermal decomposition High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose None of these High purity products can be obtained thereby Lighter/low boiling products are prone to thermal decomposition High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose None of these ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Octane number (unleaded) of gasoline produced by isomerisation of butane may be about 70 90 55 45 70 90 55 45 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms. Viscosity Smoke point Octane number Cetane number Viscosity Smoke point Octane number Cetane number ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic Reforming Cracking Isomerisation Polymerisation Reforming Cracking Isomerisation Polymerisation ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'. 15 25 1 5 15 25 1 5 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Higher viscosity of lubricating oil usually signifies Lower flash point and fire point Higher flash point and fire point Lower Reid vapour pressure Higher acid number Lower flash point and fire point Higher flash point and fire point Lower Reid vapour pressure Higher acid number ANSWER DOWNLOAD EXAMIANS APP
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