Which is the most undesirable component in kerosene ?
Paraffin base crude oil as compared to asphalt base crude gives
Illuminating characteristics of kerosene is expressed by its
Diesel index.(an alternative index for expressing the quality of diesel) is
Flash point of atmospheric distillation residue is determined by __________ apparates.
__________ is not an important refinery process for upgrading the quality of lubricating oil.
Complete removal of __________ from gasoline is done by Unisol process using caustic soda and methyl alcohol.
__________ converts n-paraffins to i-paraffins.
__________ determination is not a very significant and important test for gasoline.
Pick out the wrong statement about the smoking tendency of various hydrocarbon constituents of kerosene.
True boiling point apparatus is used for the
Which of the following constituents present in petroleum is responsible for ash formation?
Octane number of gasoline is a measure of its
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
Pick out the undesirable property for a solvent meant for dewaxing of lube oil.
The main use of heavy gas oil produced by the vacuum distillation unit is as a
Visbreaking process is used mainly for making
The colour of gasoline is an indication of its
Which of the following has the lowest viscosity (at a given temperature) of all?
Solvent used in duo-sol extraction for lube oil upgradation is a mixture of
Testing of the knocking characteristics of petrofuels is done in a __________ engine.
Antioxidants are added in petrol to
In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.
Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.
The coking process normally mostly used in Indian oil refineries is the __________ coking process.
Pick out the additive property of a lube oil out of following.
Catalyst used in catalytic reforming is
Pour point and freezing point is equal for
Which of the following is used as a catalyst in fluidised bed catalytic cracking ?
Casing head gasoline is the liquid
Stabilisation of gasoline (petrol) means
Operating condition in the electrical dehydrators for crude oil is about
The octane number of aviation gasoline may be
Name the hydrocarbon having the poorest oxidation stability.
Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.
Glycol added to petrol acts as a/an __________ agent.
The proper arrangement of the petroleum fractions in order of their boiling points is
Sulphur content in lighter and heavier petroleum products is generally determined respectively by
Crude oil is pumped by a __________ pump.
The first crude oil refinery of India is located at
The most widely used crude topping column in refineries is the __________ column.
Phenols are added in gasoline to
Which of the following categories of gasoline has the highest lead susceptibility ?
Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
Octane number of gasoline produced by two stage fluidised catalytic cracking process is
Equal volumes of aniline and diesel oil when mixed at room temperature (during summer) was found to be completely mis-cible. It means that the aniline point of the diesel is __________ the room temperature.
Straight run naphtha is converted into high octane number petrol (gasoline) by catalytic
Petrolatum is
Olefins are
Which of the following is desirable in diesel and kerosene but is undersirable in gasoline ?