Q. Which of the following is a naphthene ?

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Q. Pick out the correct statement pertaining to catalytic cracking.

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Q. Feedstock for polymerisation is

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Q. 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

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Q. Octane number (unleaded) of gasoline produced by isomerisation of butane may be about

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Q. The solvent used in Barisol dewaxing process is

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Q. 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 ?

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Q. Catalyst used in the catalytic polymerisation is

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

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

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Q. Crude topping column operates at __________ pressure.

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Q. Tetra-ethyl lead is added in gasoline to

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

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

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Q. The characterisation factor of crude petroleum oil is around

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Q. Which of the following has the highest flash point of all ?

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Q. 'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts.

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Q. The general formula of naphthenes is

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Q. The main aim of cracking is to produce

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Q. Sour crude means the __________ bearing crude.

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