Choose the correct statement.
Choose the correct statement.
Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke?
Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke?
Which of the following additives improves the cetane number of diesel?
Which of the following additives improves the cetane number of diesel?
Research octane number refers to the
Research octane number refers to the
Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.
Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.
Octane number of n-heptane is assumed to be
Octane number of n-heptane is assumed to be
In case of liquid petrofuels, momentary combustion is observed at its
In case of liquid petrofuels, momentary combustion is observed at its
The characterisation factor of crude petroleum oil is around
The characterisation factor of crude petroleum oil is around
Visbreaking process is used mainly for making
Visbreaking process is used mainly for making
__________ determination is not a very significant and important test for gasoline.
__________ determination is not a very significant and important test for gasoline.
The main aim of cracking is to produce
The main aim of cracking is to produce
Waxes present in petroleum products
Waxes present in petroleum products
Aniline point test of an oil qualitatively indicates the __________ content of an oil.
Aniline point test of an oil qualitatively indicates the __________ content of an oil.
Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
Fuel oil is subjected to visbreaking to reduce its
Fuel oil is subjected to visbreaking to reduce its
Which of the following categories of gasoline has the highest lead susceptibility?
Which of the following categories of gasoline has the highest lead susceptibility?
Road grade bitumen is produced from vacuum residue by its
Road grade bitumen is produced from vacuum residue by its
Which of the following is a non-regenerative fixed bed catalytic reforming process?
Which of the following is a non-regenerative fixed bed catalytic reforming process?
Which of the followingis desirable in petrol (gasoline) but undesirable in kerosene?
Which of the followingis desirable in petrol (gasoline) but undesirable in kerosene?
Water content in the crude oil as it comes out of oil well may be upto __________ percent.
Water content in the crude oil as it comes out of oil well may be upto __________ percent.
Crude oil is transported inland from oil field to refineries, mainly by the
Crude oil is transported inland from oil field to refineries, mainly by the
Which of the following is an additive used for improving the cetane number of diesel?
Which of the following is an additive used for improving the cetane number of diesel?
Naphthenic acid is a/an __________ compound.
Naphthenic acid is a/an __________ compound.
Which is the most effective catalyst used in catalytic cracking of petroleum products?
Which is the most effective catalyst used in catalytic cracking of petroleum products?
The reservoir rock containing petroleum has
The reservoir rock containing petroleum has
Petroleum coke is commercially produced by the __________ process.
Petroleum coke is commercially produced by the __________ process.
Glycol added to petrol acts as a/an __________ agent.
Glycol added to petrol acts as a/an __________ agent.
Asphalts are
Asphalts are
The most suitable solvent for deasphalting vacuum residue is
The most suitable solvent for deasphalting vacuum residue is
Pick out the correct statement about catalytic polymerisation.
Pick out the correct statement about catalytic polymerisation.
Octane numbers of motor gasoline used in India and America are respectively
Octane numbers of motor gasoline used in India and America are respectively
Which of the following reactions is undesirable in the production of catalytically reformed gasoline?
Which of the following reactions is undesirable in the production of catalytically reformed gasoline?
Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has
Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has
Petroleum deposits are detected by the.
Petroleum deposits are detected by the.
Isomerisation converts the __________ tot-paraffins.
Isomerisation converts the __________ tot-paraffins.
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
Which of the following processes consumes hydrogen?
Which of the following processes consumes hydrogen?
The characterisation factor of a crude oil is calculated as 12.5. It means that; it is
The characterisation factor of a crude oil is calculated as 12.5. It means that; it is
Performance number of a liquid fuel is related to its
Performance number of a liquid fuel is related to its
The main use of heavy gas oil produced by the vacuum distillation unit is as a
The main use of heavy gas oil produced by the vacuum distillation unit is as a
Which one is used to determine the colour of petroleum products?
Which one is used to determine the colour of petroleum products?
1 centistoke is equal to __________ Redwood I seconds.
1 centistoke is equal to __________ Redwood I seconds.
Both asphalt and wax are produced by __________ base crude oils.
Both asphalt and wax are produced by __________ base crude oils.
Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is
Absolute vapor pressure of petrofuels is found by Reid bomb which is heated in water bath to 100°F. In Reid apparatus, the ratio of the volume of air chamber to that of the liquid fuel chamber is
Octane number (unleaded) of reformed gasoline may be upto
Octane number (unleaded) of reformed gasoline may be upto
Aromatics are desired constituents of
Aromatics are desired constituents of
Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners?
Which of the following does not require preheating during storage in the storage tank as well as during atomisation through burners?
True vapour pressure of a petroleum fraction __________ Reid vapour pressure.
True vapour pressure of a petroleum fraction __________ Reid vapour pressure.
Good quality kerosene should have
Good quality kerosene should have
Pyrolysis of kerosene or natural gasoline is done to produce mainly the
Pyrolysis of kerosene or natural gasoline is done to produce mainly the
Catalyst used in the catalytic cracking is
Catalyst used in the catalytic cracking is
Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.
Gasoline extracted from natural gas (by compression and cooling) is called the __________ gasoline.
Gum formation in stored gasoline is mainly due to the
Gum formation in stored gasoline is mainly due to the
Paraffins are desirable in lubricating oil, as it has got high
Paraffins are desirable in lubricating oil, as it has got high
Clay treatment is used to remove
Clay treatment is used to remove
Which of the following is used as a solvent in deasphalting of petroleum products?
Which of the following is used as a solvent in deasphalting of petroleum products?
Penetration test determines the __________ of the grease.
Penetration test determines the __________ of the grease.
The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.
The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.
Molecular weight of crude petroleum may be around
Molecular weight of crude petroleum may be around
The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to
The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
Breathing loss on storage of gasoline occurs due to the
Breathing loss on storage of gasoline occurs due to the
With increase in the number of carbon and hydrogen atoms in hydrocarbon molecules, the density of petroleum products
With increase in the number of carbon and hydrogen atoms in hydrocarbon molecules, the density of petroleum products
Which of the following has the highest viscosity of all (at a given temperature)?
Which of the following has the highest viscosity of all (at a given temperature)?
Molecular weight of petrol may be about
Molecular weight of petrol may be about
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.
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.
Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.
Preheating temperature of medium viscosity furnace oil for better atomisation through burner is about __________ °C.
Which of the following gasolines (unleaded) has the least octane number?
Which of the following gasolines (unleaded) has the least octane number?
Which of the following is desirable in diesel and kerosene but is undersirable in gasoline?
Which of the following is desirable in diesel and kerosene but is undersirable in gasoline?
Aniline point is the
Aniline point is the
Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene?
Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene?
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.
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.
Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
Catalyst used in alkylation process is
Catalyst used in alkylation process is
Sour crude means the __________ bearing crude.
Sour crude means the __________ bearing crude.
Which of the following has the highest octane number?
Which of the following has the highest octane number?
Choose the correct statement.
Choose the correct statement.
Octane number of gasoline produced by two stage fluidised catalytic cracking process is
Octane number of gasoline produced by two stage fluidised catalytic cracking process is
Pick out the wrong statement.
Pick out the wrong statement.
Butadiene is a/an
Butadiene is a/an
Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
Main constituent of natural gas is
Main constituent of natural gas is
