101⟩ Name the hydrocarbon having the poorest oxidation stability. A. naphthene B. olefin C. paraffin D. aromatics
Option D
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340 Petroleum Engineering Questions And Answers
102⟩ Olefins are A. saturated hydrocarbons. B. unsaturated cyclic compounds (hydrocarbons). C. present in substantially good quantity in crude petroleum. D. none of these.
Option D
103⟩ Testing of the knocking characteristics of petrofuels is done in a __________ engine. A. Carnot B. CFR (Co-operative fuel research) C. Stirling D. diesel
Option B
104⟩ The first crude oil refinery of India is located at A. Naharkatiya B. Digboi C. Kochin D. Madras
Option B
105⟩ Pick out the wrong statement. A. Higher temperature is employed in visbreaking than in thermal cracking. B. Pyrolysis is a mild thermal cracking process. C. Lead suceptibility of petrol produced by catalytic process is more than that produced by thermal cracking. D. Operating pressure and temperature in thermal cracking process is more than that in catalytic cracking process.
Option A
106⟩ 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
Option C
107⟩ Solvent used for dewaxing of petroleum products are A. furfural B. methyl ethyl ketone (MEK) C. propane D. both(b)&(c)
Option C
108⟩ The pressure (kg/cm2 ) and temperature (°C) maintained in electrical desalters for crude oil are respectively A. 10 and 120 B. 1 and 200 C. 50 and 250 D. 10 and 300
Option B
109⟩ Deoiling of wax is done by its A. heating B. cooling C. solvent extraction D. both(b)&(c)
Option D
110⟩ The average boiling point of aviation turbine fuel is closest to that of A. lubricating oils B. LPG C. diesel D. Kerosene
Option D
111⟩ Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C. A. 50 B. 70 C. 90 D. 140
Option C
112⟩ The most widely used crude topping column in refineries is the __________ column. A. bubble-cap B. packed bed C. fluidised bed D. perforated plate
Option A
113⟩ Molecular weight of crude petroleum may be around A. 50 B. 250 C. 1500 D. 5000
Option C
114⟩ Electrical desalting of crude oil removes the __________ impurities. A. oleophilic B. oleophobic C. both (a) and (b) D. neither (a) nor (b)
Option B
115⟩ Mercaptans is represented as (where R and R' are alkyl groups) A. R-COOH B. R-S-H C. R-S-R D. R-S-R'
Option B
116⟩ An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating. A. 5 B. 15 C. 40 D. 60
Option C
117⟩ Petrolatum is A. same as petroleum ether. B. petroleum coke. C. a mixture of microcrystalline wax in viscous hydrocarbon liquids. D. none of these.
Option C
118⟩ Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms. A. 0.1 to 0.5 B. 1.5 to 4.5 C. 7.5 to 12.5 D. 15-20
Option B
119⟩ 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 (a), (b) & (c).
Option D
120⟩ Sulphur content in lighter and heavier petroleum products is generally determined respectively by A. lamp method and bomb method. B. bomb method and lamp method. C. bomb method and quartz tube method. D. quartz tube method and lamp method.
Option B
