Petroleum Engineering Question:

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Straight run petrol as compared to methyl/ethyl alcohol has

A. lower calorific value.
B. lower octane number.
C. higher specific gravity.
D. higher ignition temperature.

Petroleum Engineering Interview Question
Petroleum Engineering Interview Question

Answer:

Option B

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Isomerisation converts the __________ tot-paraffin's.

A. paraffins
B. olefins
C. naphthenes
D. none of these		Crude oil is subjected to vacuum distillation in the last stage, because

A. high boiling point products like heavy fuel oil & lubricating oils are heat sensitive and may decompose.
B. lighter/low boiling products are prone to thermal decomposition.
C. high purity products can be obtained thereby.
D. none of these.