Petroleum Refinery Engineering MCQs

H2SO4

H3PO4

both (a) and (b)

AlCl3

waxes

mercaptans

asphalt

diolefins

hydrocracking

visbreaking

fluid catalytic cracking

delayed coking

smoke point

aniline point

luminosity number

aromatic content

dearomatisation of kerosene

removal of mercaptans

dewaxing

decoloration

Octane number of i-octane is zero.

Octane number of paraffins increases with increasing number of carbon atoms.

Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms.

The aromatics have lower octane number than naphthenes with same number of carbon atoms.

lubricating oil

diesel

kerosene

petrol

is more viscous than high viscosity furnace oil (HVFO).

stands for low sulphur heavy stock.

is an ideal fuel for metallurgical furnaces due to its lower sulphur content (< 1%).

all (a), (b) and (c).

°API gravity

Specific gravity

Viscosity

Flashpoint

removal of dissolved gases from it.

increasing its oxidation stability.

improving its lead susceptibility.

increasing its vapour pressure.