Coal Formation and Technology Quiz

Which of the following is NOT a stage in coal formation?

• Peat

• Lignite

• Shale

• Anthracite

Arrange the following coal types in order of increasing carbon content:

• Bituminous, Lignite, Anthracite, Sub-bituminous

• Lignite, Sub-bituminous, Bituminous, Anthracite

• Anthracite, Bituminous, Sub-bituminous, Lignite

• Sub-bituminous, Lignite, Anthracite, Bituminous

Which of the following is a characteristic of anthracite coal?

• High moisture content

• Low heating value

• Highest carbon content

• Soft and crumbly texture

Which of these is an underground coal mining method?

• Open-pit mining

• Mountaintop removal mining

• Longwall mining

• Strip mining

Coal washing primarily aims to:

• Increase the moisture content of coal

• Remove impurities from coal

• Reduce the carbon content of coal

• Enhance the visual appearance of coal

The majority of coal consumed globally is used for:

• Steel production

• Electricity generation

• Cement manufacturing

• Residential heating

In a coal-fired power plant, the primary function of the boiler is to:

• Generate electricity directly

• Convert coal into ash

• Produce steam to drive a turbine

• Filter out pollutants from the flue gas

Which of the following is NOT a major air pollutant associated with coal combustion?

• Sulfur dioxide (SO2)

• Nitrogen oxides (NOx)

• Particulate matter (PM)

• Ozone (O3)

Carbon capture and storage (CCS) technology aims to:

• Increase the efficiency of coal combustion

• Capture and store carbon dioxide emissions from coal plants

• Convert coal into a cleaner fuel

• Promote the use of renewable energy sources

Which of the following is an emerging trend in coal technology?

• Increased reliance on traditional coal-fired power plants

• Development of coal gasification and liquefaction technologies

• Phasing out of clean coal technologies

• Decreased investment in carbon capture and storage