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.Management Sciences
Category: Petroleum Refinery Engineering
Flash point of an oil is determined by the _____________________?
A. Pensky Martens apparatus
B. Ramsbottom apparatus
C. Saybolt viscometer
D. Conradson apparatus
Which of the following factors does not govern the mechanism of petroleum formation from organic sources ?
A. pH of the soil
B. Bacterial action
C. Heat
D. Pressure
Water separometer index (modified) (WSIM) of a petrofuel is the measure of its____________________?
A. Emulsification tendency
B. Water separation characteristics
C. Water content
D. Water absorbing capacity from atmosphere
Crude oil is transported inland from oil field to refineries, mainly by the _____________________?
A. Road tankers
B. Rail tankers
C. Underground pipelines
D. None of these
Which one is used to determine the colour of petroleum products ?
A. Colour comparator
B. Saybolt chromometer
C. Cleveland apparatus
D. None of these
Complete removal of _____________ from gasoline is done by Unisol process using caustic soda and methyl alcohol?
A. Waxes
B. Mercaptans
C. Asphalt
D. Diolefins
Crude oil is subjected to vacuum distillation in the last stage, because_________________?
A. High boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may
decompose
B. Lighter/low boiling products are prone to thermal decomposition
C. High purity products can be obtained thereby
D. None of these
In case of liquid petrofuels, momentary combustion is observed at its ________________________?
A. Flash point
B. Preheating temperature corresponding to viscosity of 25 centistokes
C. Flame temperature
D. Fire point
H/C ratio (by weight) for the same number of carbon atoms is the highest in case of____________________?
A. Aromatics
B. Paraffins
C. Olefins
D. Naphthenes
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