Q.1
__________ determination is not a very significant and important test for gasoline.
Q.2
Good quality kerosene should have
Q.3
Diesel index is defined as
Q.4
Furfural solvent extraction is used for upgrading (by dissolving aromatics)
Q.5
Which of the following has the minimum °API gravity of all?
Q.6
Catalyst used in the catalytic cracking is
Q.7
Naphthenic acid is a/an __________ compound.
Q.8
Pick out the wrong statement.
Q.9
Crude oil is transported inland from oil field to refineries, mainly by the
Q.10
Fuel oil is subjected to visbreaking to reduce its
Q.11
Dearomatisation of kerosene (by liquid sulphur dioxide extraction) is done to
Q.12
Cetane number of diesel used in trucks may be about
Q.13
Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of
Q.14
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
Q.15
Which one is used to determine the colour of petroleum products?
Q.16
Cracking is
Q.17
Carbon/hydrogen ratio (by weight) is maximum (out of following) for
Q.18
The most suitable solvent for deasphalting vacuum residue is
Q.19
Doctor's solution used for sweetening of petroleum products is
Q.20
Phenols are added in gasoline to
Q.21
The best method of determining sulphur in crude oil is by the __________ method.
Q.22
Tetra-ethyl lead is added in gasoline to
Q.23
During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.
Q.24
Aromatics are desired constituents of
Q.25
Mercaptans are
Q.26
Crude oil produced by Indian oil fields are predominantly __________ in nature.
Q.27
The octane number of aviation gasoline may be
Q.28
Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.
Q.29
Cetane number of alpha methyl naphthalene is assumed to be
Q.30
Liquefied petroleum Gas (LPG) used for the household cooking comprises mainly of
Q.31
Flash point of atmospheric distillation residue is determined by __________ apparates.
Q.32
Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.
Q.33
With increase in density, the viscosity of petroleum products
Q.34
Viscosity index of a lubricating oil
Q.35
'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts.
Q.36
Crude oil is subjected to vacuum distillation in the last stage, because
Q.37
Pick out the wrong statement.
Q.38
The most commonly used feed stock for the reforming reactor is
Q.39
Stabilisation of gasoline (petrol) means
Q.40
Which is the most undesirable component in kerosene?
Q.41
Octane number (unleaded) of gasoline produced by isomerisation of butane may be about
Q.42
The average boiling point of aviation turbine fuel is closest to that of
Q.43
Aniline point is a property of the
Q.44
Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API) ?
Q.45
The solvent used in Barisol dewaxing process is
Q.46
In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.
Q.47
With increase in the molecular weight of aromatic present in kerosene, its smoking tendency
Q.48
Though increased pressure has a retarding effect on cracking reaction, yet in actual process, a positive pressure of 10-15 kgf/cm² is maintained during cracking mainly to
Q.49
Which of the following contains maximum sulphur?
Q.50
Pressure & temperature maintained in catalytic cracking is about
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