chemical engineering petroleum refinery engineering Mcqs
301. Natural gasoline is produced___________________?
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A. From oil wells

B. By natural gas stripping

C. None of these

D. In oil refineries

302. Naphthenic acid is represented by ___________________?
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A. CnH2n+2O2 (n ? 6)

B. CnH2n-2O2

C. CnH2n+2O2

D. CnH2n+6O2 (n ? 6)

303. Crude petroleum oil is a _______________ fuel?
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A. Primary

B. Fossil

C. Both A. & B.

D. Secondary

304. Aniline point test of an oil qualitatively indicates the ______________ content of an oil?
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A. Paraffin

B. Olefin

C. Naphthene

D. Aromatic
305. Diesel index (an alternative index for expressing the quality of diesel) is_______________?
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A. All A., B. & C.

B. Equal to cetane number plus 3

C. Not related to aniline point

D. Determined by using a test engine

306. Solvent used in duo-sol extraction for lube oil upgradation is a mixture of______________?
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A. Propane & phenol-cresol mixture

B. Phenol & furfural

C. Propane & liquid sulphur dioxide

D. Methyl ethyl ketone & glycol

307. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?
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A. Diethylene glycol

B. Aqueous solution (10% water) of diethylene glycol

C. Methyl ethyl ketone (MEK)

D. Propane

308. hich of the following is the most suitable feed for platforming process (reforming) ?
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A. Fuel oil

B. Atmospheric residue

C. Naphtha

D. Olefinic hydrocarbon
309. Solution used in Doctors treatment for the removal of mercaptans is_________________?
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A. Sodium plumbite

B. Potassium isobutyrate

C. Sodium hydroxide

D. Cupric chloride

310. Choose the correct statement regarding thermal cracking ?
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A. Greater depth of cracking gives lower octane number gasoline

B. At low pressure, the yield of lighter hydrocarbons are more

C. Increased residence time results in the decreased severity of cracking

D. Moderate changes in operating temperature does not change the depth of cracking

311. Petroleum coke is used mainly in the __________________ ?
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A. Blast furnace for reduction of iron ore

B. Discoloration of yellow glycerine

C. Manufacture of carbon electrode

D. Sugar refining

312. Pick out the wrong statement?
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A. Pyrolysis is a mild thermal cracking process

B. rmal cracking

C. Lead susceptibility of petrol produced by catalytic process is more than that produced by

D. Operating pressure and temperature in thermal cracking process is more than that in catalytic

E. cking process

F. Higher temperature is employed in visbreaking than in thermal cracking
313. Presence of sulphur in gasoline___________________?
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A. Leads to corrosion

B. Decreases gum formation

C. Increases lead susceptibility

D. Helps during stabilisation

314. Which of the following processes in oil refinery does not employ cracking??
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A. Coking

B. None of these

C. Pyrolysis

D. Visbreaking

315. Deoiling is the process of removal of oil from wax. It is done by the _______________ process?
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A. Resettling

B. Solvent extraction

C. Sweating

D. All A., B. & C.
316. Pick out the wrong statement ?
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A. All the alkylation processes use very high temperature (> 1000C)

B. Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts

C. Alkylation produces a larger iso-paraffin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin

D. Gasoline having an octane number of 90 can be produced by alkylation process

317. RIH stands for ________?
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A. Rip in hole

B. None of these

C. Rest in hole

D. Run in hole
318. Smoke point of kerosene expresses its__________________?
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A. Luminosity characteristics

B. Burning characteristics

C. Aromatic content directly

D. Lamp wick wetting characteristics

319. Which is the most desirable component of a good quality kerosene ?
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A. n-paraffins

B. Naphthenes

C. i-paraffins

D. Aromatics

320. Pick out the wrong statement ?
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A. Characterisation factor of paraffinic crude oil is more than 12

B. Pensky-Marten apparatus is used for determining flash points above 50C

C. Abel apparatus is used for determining flash points below 50C

D. An oil having high susceptibility to change in viscosity with temperature changes, has a high viscosity index
321. The yield of straight run LPG from crude oil is about ______________ weight percent?
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A. 0.1-0.2

B. 15-Oct

C. 20-25

D. 1-1.5