chemical engineering petroleum refinery engineering MCQs – Page 10

Practise multiple-choice questions from chemical engineering petroleum refinery engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering petroleum refinery engineering Mcqs

181. A petroleum well is called dry, if it contains ____________________?
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A. Only natural gas

B. No natural gas

C. Very little oil

D. All A., B. and C.

182. Lane and Garton classification of petroleum is based on its ____________________?
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A. Specific gravity

B. Optical properties

C. Composition

D. Viscosity

183. Feed for reforming is generally___________________?
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A. Naphtha or straight run gasoline

B. Atmospheric gas oil

C. Vacuum gas oil

D. Reduced crude

184. Molecular weight of crude petroleum may be around________________?
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A. 5000

B. 250

C. 1500

D. 50

185. Pick out the correct statement about catalytic polymerisation ?
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A. H2SO4 polymerisation process gives gasoline rich in unsaturates

B. In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho

C. O4 formation, which are inactive</strong>

D. Both A. and B.

E. Neither A. nor B.

186. Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about ________________ of that of water (i.e. 1 gm/c.c)?
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A. One eighth

B. Half

C. One third

D. One fourth

187. The vacuum maintained in vacuum distillation unit for reduced crude is about _______________ mm Hg?
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A. 700

B. 12

C. 120

D. 1.2

188. Clay treatment of petroleum products __________________?
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A. All A., B. & C.

B. Desulphurise straight run gasoline & kerosene

C. Decolorizes & stabilises cracked gasoline

D. Adsorb arsenic from feedstock to catalytic reforming

189. The reservoir rock containing petroleum has_________________?
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A. Low porosity

B. High permeability

C. High porosity

D. Both B. and C.

190. Paraffin base crude oil as compared to asphalt base crude gives___________________?
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A. Poorer yield of lube oil

B. Lower viscosity index lube oil

C. Higher yield of straight run gasoline

D. Higher octane number gasoline

191. Smoke point of a good burning kerosene may be around _______________ mm?
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A. 20-25

B. 60-75

C. 0-5

D. 100-120

192. Electrical desalting of crude oil removes the _______________ impurities?
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A. Oleophilic

B. Oleophobic

C. Both A. and B.

D. Neither A. nor B.

193. Waxes present in petroleum products_________________?
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A. Are not soluble in them

B. Crystallise out at low temperature

C. Decrease their viscosity

D. Can be separated out by distillation

194. The most suitable solvent for deasphalting vacuum residue is_____________________?
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A. Methanol amine

B. Propane

C. Doctors solution

D. Methyl ethyl ketone

195. Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to________________?
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A. Decrease the breathing loss

B. Improve its oxidation stability

C. None of these

D. Increase its smoke point

196. Isomerisation converts the ___________________ tot-paraffins?
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A. Naphthenes

B. None of these

C. Olefins

D. Paraffins

197. Mercaptans are added to liquefied petroleum gas (LPG) to _____________________ ?
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A. Assist in checking its leakage from cylinder

B. Reduce its cost

C. Narrow down its explosion limit

D. Increase its calorific value

198. Crude topping column operates at ________________ pressure?
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A. Vacuum

B. 3 atm

C. Atmospheric

D. 10 atm

199. Liquefied Petroleum Gas (LPG) is mainly a mixture of _____________________?
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A. Propane & butane

B. Methane & ethane

C. High boiling olefins

D. High boiling naphthenes

200. Which of the following petroleum products contain minimum sulphur ?
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A. Furnace oil

B. LSHS

C. Naphtha

D. Kerosene

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