Petroleum Engineering Interview Questions And Answers

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Enhance your Petroleum Engineering interview preparation with our set of 341 carefully chosen questions. Our questions cover a wide range of topics in Petroleum Engineering to ensure you're well-prepared. Whether you're new to the field or have years of experience, these questions are designed to help you succeed. Get the free PDF download to access all 341 questions and excel in your Petroleum Engineering interview. This comprehensive guide is essential for effective study and confidence building.

341 Petroleum Engineering Questions and Answers:

Petroleum Engineering Job Interview Questions Table of Contents:

Petroleum Engineering Job Interview Questions and Answers
Petroleum Engineering Job Interview Questions and Answers

1 :: Diesel used in naval applications has a minimum cetane number of

A. 25
B. 35
C. 45
D. 65

Option C
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2 :: Which of the following tests is not done for transformer oil?

A. Flash point and acid value.
B. Aniline point.
C. Dielectric strength.
D. Copper strip corrosion test.

Option B
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3 :: Which is the most undesirable component in kerosene?

A. Aromatics
B. i-paraffins
C. n-paraffins
D. Naphthenes

Option A
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4 :: Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.

A. Smoking tendency of hydrocarbons increases in the order : paraffins → isoparaffins → naphthenes → aromatics.
B. Smoking tendency of paraffin's increases with decrease in its molecular weight.
C. Smoking tendency of naphthenes decreases with its increasing molecular weight & also on addition of double bond.
D. Smoking tendency of aromatics decreases with increase in its molecular weight.

Option B
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5 :: Solvent used in duo-sol extraction for lube oil upgradation is a mixture of

A. propane & phenol-cresol mixture.
B. methyl ethyl ketone & glycol.
C. phenol & furfural.
D. propane & liquid sulphur dioxide.

Option A
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6 :: Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API)?

A. Diesel
B. Gasoline
C. Atmospheric gas oil
D. Vacuum gas oil

Option C
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7 :: For gasoline, the flash point (<50°C) is determined by the<!--50-->

A. Abel apparatus.
B. Pensky-Marten's apparatus.
C. Saybolt chromometer.
D. none of these.

Option D
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8 :: Flash point of atmospheric distillation residue is determined by __________ apparates.

A. Pensky-Martens (closed cup type).
B. Abel.
C. Cleveland (open cup type)
D. none of these.

Option C
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9 :: Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about

A. 0.1
B. 1
C. 2.5
D. 3.5

Option B
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10 :: Pour point and freezing point is equal for

A. petrol
B. diesel
C. water
D. crude petroleum

Option C
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11 :: Casing head gasoline is the liquid

A. butane.
B. propane.
C. natural gas.
D. gasoline separated from wet natural gas by compression.

Option A
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12 :: Most commonly used crude heater before the fractionation tower in a refinery is the __________ heater.

A. electric immersion
B. pipestill
C. steam coil
D. none of these

Option B
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13 :: Which of the following is used as a catalyst in fluidised bed catalytic cracking?

A. Silica-magnesia
B. Silica-alumina
C. Bentonite clays
D. All (a), (b) and (c)

Option D
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14 :: Pick out the undesirable property for a solvent meant for dewaxing of lube oil.

A. Complete miscibility with oil.
B. High solubility of wax in the solvent.
C. Both (a) and (b).
D. Neither (a) nor (b).

Option C
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15 :: Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm.

A. n-paraffins
B. olefins
C. aromatics
D. none of these

Option C
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16 :: __________ is not an important refinery process for upgrading the quality of lubricating oil.

A. Deoiling
B. Solvent refinning
C. Clay treatment
D. Hydrotreatment

Option A
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17 :: Viscosity index of a lubricating oil

A. is the measure of its flash point.
B. is the measure of variation of viscosity with temperature.
C. should be low.
D. none of these.

Option B
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18 :: Visbreaking process is used mainly for making

A. high cetane diesel
B. high octane gasoline
C. fuel oil
D. smoke free kerosene

Option C
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19 :: Operating condition in the electrical dehydrators for crude oil is about

A. 6.5 kgf/Cm2 & 95°C.
B. 1 atm. & 110 °C.
C. 20 kgf/cm2 & 110°C.
D. 50 atm. and 150°C.

Option A
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20 :: Crude oil is pumped by a __________ pump.

A. gear
B. centrifugal
C. screw
D. reciprocating

Option B
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21 :: Solvent used in the deasphalting process is

A. furfurol
B. phenol
C. propane
D. hexane

Option C
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22 :: A good lubricant should have high

A. viscosity index
B. volatility
C. pour point
D. none of these

Option A
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23 :: Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol.

A. waxes
B. mercaptans
C. asphalt
D. diolefins

Option B
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24 :: The main use of heavy gas oil produced by the vacuum distillation unit is as a

A. blending component for kerosene.
B. blending component for petrol.
C. feedstock for fluid catalytic cracking unit.
D. none of these.

Option C
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25 :: Stabilisation of gasoline (petrol) means

A. removal of dissolved gases from it.
B. increasing its oxidation stability.
C. improving its lead susceptibility.
D. increasing its vapour pressure.

Option A
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