Petroleum Engineering Question:

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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.

Petroleum Engineering Interview Question
Petroleum Engineering Interview Question

Answer:

Option A

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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.		Operating temperature and pressure in catalytic reforming is about

A. 1-5 Kgf/cm2 & 200°C.
B. 15-45 Kgf/cm2 & 450-550°C.
C. 50 - 75 kgf/cm2 & 600 - 800°C.
D. 5-10 kgf/cm2 & 150 - 250°C.