Explore topic-wise MCQs in Graduate Aptitude Test (GATE).

The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.

Catalyst used in isomerisation process is

Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.

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.

The order of preference for feedstock to a catalytic reformer is

LPG stands for

Deoiling of wax is done by its

Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).

Which of the following processes is used for the production of petroleum coke?

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.

Olefins are

Which of the following has the minimum °API gravity of all?

Feedstock for polymerisation is

Reforming converts

Octane number of gasoline produced by two stage fluidised catalytic cracking process is

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

Which of the following is an additive used for improving the cetane number of diesel?

Pick out the wrong statement.

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

Which of the following reactions is undesirable in the production of catalytically reformed gasoline?

Which of the following is the most widely used cracking process in oil refineries?

The best method of determining sulphur in crude oil is by the __________ method.

Presence of aromatics in

The most important property for a jet fuel is its

The main aim of cracking is to produce

High aniline point of a petrofuel (say diesel) indicates that

Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to

Which of the following is not an important property of fuel oil/furnace oil?

Visbreaking

Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).

Flash point of an oil is determined by the

The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mm Hg.

Pick out the correct statement pertaining to catalytic cracking.

Liquefied Petroleum Gas (LPG) is mainly a mixture of

Catalyst used in catalytic polymerisation which produces polymer gasoline is

Which of the following has the lowest cetane number?

Hydrogen percentage (by weight) in crude petroleum may be about

Flash point of a liquid petroleum fuel gives an idea about its

An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating.

Pressure & temperature maintained in catalytic cracking is about

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?

In catalytic cracking, the

Solvent used for dewaxing of petroleum products are

Carbon percentage (by weight) in crude petroleum may be about

The general formula of naphthenes is

CnH2n is the general formula for

The first crude oil refinery of India is located at

Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with

Which of the following has maximum hydrogen/carbon ratio (by weight)?