95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C. 30 2 55 -40 TRUE ANSWER : ? YOUR ANSWER : ?
LPG stands for Liquid petroleum gas Liquid petrol gas Liquefied petroleum gas Liquified petrol gas TRUE ANSWER : ? YOUR ANSWER : ?
Molecular weight of crude oil is in the range of 100-120 230-250 450-550 600-850 TRUE ANSWER : ? YOUR ANSWER : ?
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 Light ends Intermediate distillates Residues Heavy distillates TRUE ANSWER : ? YOUR ANSWER : ?
With increase in the molecular weight of aromatic present in kerosene, its smoking tendency Increases Decreases Is unpredictable Remains same TRUE ANSWER : ? YOUR ANSWER : ?
Waxy crudes are treated with chemical additives mainly to Precipitate wax Depress its pour point Remove wax Dissolve wax TRUE ANSWER : ? YOUR ANSWER : ?
Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil Higher sulphur content in the product Higher gum forming material in petrol Lower octane number of petrol Gives higher yield of petrol TRUE ANSWER : ? YOUR ANSWER : ?
Crude oil is subjected to vacuum distillation in the last stage, because High purity products can be obtained thereby None of these High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose Lighter/low boiling products are prone to thermal decomposition TRUE ANSWER : ? YOUR ANSWER : ?
Research octane number refers to the Unleaded motor fuels High octane number motor fuels Low octane number motor fuels High octane number aviation fuels TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is used as a solvent in deasphalting of petroleum products? Liquid sulphur dioxide Furfural Methyl ethyl ketone Propane TRUE ANSWER : ? YOUR ANSWER : ?