Related Questions

Aromatics have the highes __________ of all the hydrocarbons of same carbon atoms.
A Smoke point
B Octane number
C Cetane number
D Viscosity
অপরিশোধিত পেট্রোলিয়াম বিশোধনে যে প্রক্রিয়া অধিক কার্যকর (In refining crude petroleum the more effective operation is)
A Distillation
B Steam distillation
C Sublimation
D Fractional distillation
Although it can be derived_ oil, coal, and tar kerosene is usually produced_ refining it from petroleum.
A from/by
B by/from
C in/from
D at/for
Although it can be derived _______ oil, coal and tar, kerosene is usually produced _______ refining it from petroleum.
A from/by
B in/from
C at/on
D near/along
Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is
A Propane
B Diethylene glycol
C Aqueous solution (10% water) of diethylene glycol
D Methyl ethyl ketone (MEK)
Furfural solvent extraction is used for upgrading (by dissolving aromatics)
A Naphtha
B Lubricating oils
C Wax
D Cracking feedstock
'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the
A Temperature vs. log (vapor pressure)
B Vapor pressure vs. log (temperature)
C Log (temperature) vs. log (vapor pressure)
D Vapor pressure vs. temperature
Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature)
A Log P vs . T
B Log P vs. log T
C T vs . P
D P vs . log T
Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has
A High pour point and low smoke point
B Low viscosity index
C High self-ingnition temperature
D All of the above
Aromatics are desired constituents of
A Lubricating oil
B Diesel
C Kerosene
D Petrol

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