Online Chemical Engineering Test - Petroleum Refinery Engineering Test

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Total number of questions: 20.
Time allotted: 30 minutes.
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Paraffin base crude oil as compared to asphalt base crude gives

higher yield of straight run gasoline.

higher octane number gasoline.

lower viscosity index lube oil.

poorer yield of lube oil.

[#]

Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.

bauxite

fuller's earth

activated clay

all (a), (b) & (c)

[#]

Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.

0.1 to 0.5

1.5 to 4.5

7.5 to 12.5

15-20

[#]

Crude oil is transported inland from oil field to refineries, mainly by the

road tankers

rail tankers

underground pipelines

none of these

[#]

Hydrofining is the most recent and effective method for the

removal of sulphur.

improvement of smoke point.

reduction of breathing loss.

improvement of viscosity index.

[#]

95% (by volume) of LPG at 760 mm Hg pressure will evaporate at __________ °C.

-40

[#]

Pick out the wrong statement.

Lower boiling paraffins have higher octane number than higher paraffins.

Dehydrogenation of naphthenes to aromatics is a desirable reaction in reforming process.

The most ideal feedstock for thermal reforming is dearomatised kerosene.

Catalyst used in catalytic reforming is platinum on silica-alumina base.

[#]

Deoiling is the process of removal of oil from wax. It is done by the __________ process.

solvent extraction

sweating

resettling

all (a), (b) & (c)

[#]

Specific gravity of a petroleum product gives an indication of its

degree of refinement.

hydrocarbon content type (aromatic or paraffinic).

ease of atomisation.

sulphur content.

[#]

10.

C_nH_2n is the general formula for

olefins

naphthenes

both (a) and (b)

neither (a) nor (b)

[#]

11.

The best method of determining sulphur in crude oil is by the __________ method.

Kjeldah

Duma

Bomb calorimeter

Junkar's calorimeter

[#]

12.

Cetane number of a diesel fuel is the measure of its

ignition delay

smoke point

viscosity

oxidation stability

[#]

13.

Ethyl mercaptan is a/an __________ compound.

sulphur

nitrogen

oxygen

none of these

[#]

14.

1 centistoke is equal to __________ Redwood I seconds.

4.08

0.408

40.8

[#]

15.

Presence of sulphur in gasoline

leads to corrosion.

increases lead susceptibility.

decreases gum formation.

helps during stabilisation.

[#]

16.

Natural gasoline is produced

from oil wells

in oil refineries

by natural gas stripping

none of these

[#]

17.

True vapour pressure of a petroleum fraction __________ Reid vapour pressure.

is less than

is more than

is same as

may be either more or less than

[#]

18.

Quinoline is a/an __________ compound.

sulphur

nitrogen

oxygen

none of these

[#]

19.

LPG when brought to atmospheric pressure & temperature will be a

liquid lighter than water.

liquid heavier than water.

gas lighter than air.

gas heavier than air.

[#]

20.

Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with

methyl alcohol

ethyl alcohol

methane

ethane

[#]

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Online Chemical Engineering Test - Petroleum Refinery Engineering Test

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