Q.1
A typical yield of diesel in straight run distillation of crude oil may be about __________ percent.
Q.2
A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.
Q.3
Pick out the wrong statement.
Q.4
Percentage of straight run gasoline in a typical crude oil may be around
Q.5
A petroleum well is called 'dry', if it contains
Q.6
Testing of the knocking characteristics of petrofuels is done in a __________ engine.
Q.7
Removal of light fractions from crude oil is called its
Q.8
Naphtha yield in straight run distillation of crude oil may be about __________ percent.
Q.9
Which of the following processes in oil refinery does not employ 'cracking'?
Q.10
Most widely used solvent for dewaxing is
Q.11
Crude oil is pumped by a __________ pump.
Q.12
Cetane number of a diesel fuel is the measure of its
Q.13
Platforming is a __________ process.
Q.14
The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mmHg.
Q.15
Presence of sulphur in gasoline
Q.16
Which of the following constituents present in petroleum is responsible for ash formation?
Q.17
The most important property for a jet fuel is its
Q.18
Mercaptans are added to liquefied petroleum gas (LPG) to
Q.19
Clay treatment of petroleum products
Q.20
Which one is preferred for aircraft engine?
Q.21
Reforming
Q.22
Liquefied Petroleum Gas (LPG) is mainly a mixture of
Q.23
LSHS is a type of furnace oil, which
Q.24
__________ base crude oil is also called asphaltic crude.
Q.25
Higher viscosity of lubricating oil usually signifies
Q.26
The most widely used crude topping column in refineries is the __________ column.
Q.27
Which of the following factors does not govern the mechanism of petroleum formation from organic sources?
Q.28
Solution used in Doctor's treatment for the removal of mercaptans is
Q.29
Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.
Q.30
Name the endothermic reaction out of the following:
Q.31
Reforming converts
Q.32
Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.
Q.33
Which of the following is the easiest to crack?
Q.34
Olefins are
Q.35
Polymerisation
Q.36
Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic
Q.37
Which of the following is not a sulphur compound present in petroleum ?
Q.38
The doctor's solution comprises of sodium plumbite in
Q.39
Deoiling is the process of removal of oil from wax. It is done by the __________ process.
Q.40
Pick out the wrong statement.
Q.41
Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octance is chemically known as
Q.42
Which is almost absent in crude petroleum?
Q.43
Vacuum maintained in the vacuum distillation column in oil refinery is in the range of about __________ mm Hg absolute.
Q.44
Pour point of a petrofuel is
Q.45
Presence of aromatics in
Q.46
Petrolatum is
Q.47
Petroleum
Q.48
Pick out the wrong statement.
Q.49
True boiling point apparatus is used for the
Q.50
Raw Kerosene has a smoke point of 15 mm. After it is subjected to dearomatisation by liquid SO₂ extraction (Edeleanu process), its smoke point may become __________ mm.
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