Energy and Utilities Oil and Petroleum Systems

Question 1

What process is used at oil refineries to separate crude oil into different products based on their boiling points?

Accepted Answer

Fractional distillation

Answer

Fractional distillation heats crude oil and separates it into fractions (gasoline, diesel, kerosene, etc.) as vapors condense at different temperatures.

Question 2

What does API gravity measure in crude oil?

Accepted Answer

The density of crude oil compared to water

Answer

API gravity is an inverse measure of crude oil density relative to water; oils with API > 10 float on water, and higher API gravity generally indicates lighter, more valuable crude.

Question 3

In the oil and gas industry, what does the term 'upstream' refer to?

Accepted Answer

Exploration and production of crude oil and natural gas

Answer

Upstream encompasses the exploration, drilling, and production phases of the oil and gas supply chain before refining or transportation.

Question 4

What is a blowout preventer (BOP) primarily used for during oil drilling operations?

Accepted Answer

To control well pressure and prevent uncontrolled releases of oil or gas

Answer

A BOP is a large valve installed at the wellhead to seal the well and prevent dangerous, uncontrolled blowouts of oil or gas during drilling.

Question 5

What is crude oil referred to as 'sweet crude'?

Accepted Answer

Crude oil with low sulfur content (generally below 0.5%)

Answer

Sweet crude has low sulfur content, making it easier and cheaper to refine into gasoline and diesel, hence it commands a premium price.

Energy and Utilities Practice Test

Energy and Utilities Practice Test

Energy and Utilities Oil and Petroleum Systems