Liquefied Petroleum Gas (LPG) is mainly a mixture of
Which of the following factors does not govern the mechanism of petroleum formation from organic sources ?
Petroleum coke is commercially produced by the __________ process.
In case of liquid petrofuels, momentary combustion is observed at its
Older crude petroleum
Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene ?
Which of the following is the most widely used cracking process in oil refineries ?
Catalyst used in the catalytic polymerisation is
The main aim of cracking is to produce
The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to
The main reaction in reforming is the
Carbon percentage (by weight) in crude petroleum may be about
With increase in the number of carbon and hydrogen atoms in hydrocarbon molecules, the density of petroleum products
Flash point of diesel/kerosene (>50°C) is determined by the
Ethyl mercaptan is a/an __________ compound.
Water separometer index (modified) (WSIM) of a petrofuel is the measure of its
The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mmHg.
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
Cracking is
Hydrogen content in petroleum products varies fromto(by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg.
Natural gasoline is produced
Main constituent of natural gas is
Pick out the wrong statement.
Water content in the crude oil as it comes out of oil well may be upto __________ percent.
Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).
Crude oil produced by Indian oil fields are predominantly __________ in nature.
In solutizer sweetening process, solutizer solution used is
Polymerisation
Octane number (unleaded) of gasoline produced by isomerisation of butane may be about
The best method of determining sulphur in crude oil is by the __________ method.
Which of the following gasolines (unleaded) has the least octane number ?
Diesel index is defined as
Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C ?
The general formula of naphthenes is
The order of preference for feedstock to a catalytic reformer is
Smoke point of a good burning kerosene may be around __________ mm.
Visbreaking
The most important property for a jet fuel is its
Which of the following processes consumes hydrogen ?
Research octane number refers to the
Which of the following contains maximum sulphur ?
Both asphalt and wax are produced by __________ base crude oils.
In a refinery petroleum crude is fractionated into gas fraction, light ends, intermediate distillates, heavy distillates, residues and by products. The group of products including gas oil, diesel oil and heavy fuel oil belongs to the fraction
Catalyst used in alkylation process is
Feed for reforming is generally
The condesate obtained on compression of wet natural gas is termed as
Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (orRedwood I seconds).
The solvent used in Barisol dewaxing process is
Tetraethyl lead is added to the petrol to increase its octane number, because its octane number is
Which of the following is not a sulphur compound present in petroleum ?
Please disable the adBlock and continue. Thank you.