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Petroleum Refinery Engineering

Petroleum Refinery Engineering
Reforming converts

Olefins into paraffins
Naphthenes into paraffin
Naphthenes into aromatics
Naphthenes into olefins

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Petroleum Refinery Engineering
Hydrocracking employs

High pressure & temperature
High pressure and low temperature
High temperature and low pressure
Low pressure & temperature

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Petroleum Refinery Engineering
Naphthenic acid is represented by

CnH2n+2O₂
CnHsub>2n+2O₂ (n ≥ 6)
CnHsub>2n+6O₂ (n ≤ 6)
CnHsub>2n-2O₂

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Petroleum Refinery Engineering
Tetra-ethyl lead is added in gasoline to

Increase its octane number
Reduce the pour point
Reduce gum formation
Increase its smoke point

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Petroleum Refinery Engineering
Which of the following is a naphthene?

Butadiene
Acetylene
Cyclohexane
Butene

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Petroleum Refinery Engineering
Smoke point of a test sample of kerosene is found to be 15 mm. On removal of __________ from it, the smoke point rises to 25 mm.

Aromatics
Olefins
None of these
N-paraffins

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