Which of the following is a naphthene?
A. Butene
B. Butadiene
C. Cyclohexane
D. Acetylene
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Which of the following has the lowest flash point of all?
A. Diesel
B. Kerosene
C. Petrol
D. Furnace oil
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Feedstock for the production of biodiesel is
A. Herbal plants
B. Used vegetable oils
C. LSHS
D. Bagasse
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The catalytic cracking of heavier petroleum fraction is done to produce mainly
A. Gasoline
B. Asphalt
C. Diesel oil
D. Tar
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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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__________ converts n-paraffins to i-paraffins.
A. Alkylation
B. Polymerisation
C. Isomerisation
D. None of these
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Cn H2n is the general formula for
A. Olefins
B. Naphthenes
C. Both A & B
D. Neither A nor B
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Specific gravity of a petroleum product gives an indication of its
A. Degree of refinement
B. Hydrocarbon content type (aromatic or paraffinic)
C. Ease of atomisation
D. Sulphur content
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Which of the following petroleum products contain minimum sulphur?
A. Naphtha
B. Kerosene
C. LSHS
D. Furnace oil
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Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its
A. Molecular weight
B. Aromatics content
C. Both A & B
D. Neither A nor B
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Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil?
A. Modern theory
B. Carbide theory
C. Engler theory
D. All of the above
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Petroleum coke is used mainly in the
A. Discoloration of yellow glycerine
B. Sugar refining
C. Manufacture of carbon electrode
D. Blast furnace for reduction of iron ore
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Maximum use of petroleum coke is in
A. Adsorption refining operation
B. Fuel gas manufacture
C. Carbon electrode manufacture
D. Iron ore reduction
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Aniline point of the diesel is a measure of its __________ content.
A. Aromatic
B. Paraffin
C. Olefin
D. Naphthene
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Concentration of H2 SO4 catalyst in alkylation is kept between 90 - 98%, because H2 SO4 having concentration
A. Less than 90% promotes polymerisation
B. More than 98% promotes cracking
C. Both A & B
D. Neither A nor B
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Catalyst used in catalytic reforming is
A. Platinum on alumina
B. Nickel
C. Iron
D. Aluminium chloride
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Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol.
A. Waxes
B. Mercaptans
C. Asphalt
D. Diolefins
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The terminology used for the bottom most product from the vacuum crude distillation unit is
A. Residual crude
B. Residuum
C. Reduced crude
D. Petrolatum
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Solvent deoiling process is used for separating oil and soft wax from hard wax. Methyl iso-butyl ketone and methyl ethyl ketone (MEK) are two commonly used deoiling solvents. Use of former as the deoiling solvent has the advantages of the
A. Elimination of solvent drying facility
B. Higher nitration temperature
C. Lower solvent dilution ratio
D. All of the above
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Electrical desalting of crude oil removes the __________ impurities.
A. Oleophilic
B. Oleophobic
C. Both A & B
D. Neither A nor B
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