Chapter 5 Multiple choice questions

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. Section 5.2 describes the introduction of the use of coal as a fuel. What constituent of Durham coal made it undesirable as a replacement for wood fuel?

Nitrogen correct incorrect

Hydrogen correct incorrect

Sulfur correct incorrect

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. The smelting of iron ore requires using carbon in what form?

Charcoal or coke correct incorrect

Peat or brown coal correct incorrect

High sulfur coal correct incorrect

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. The nature of coal is described in Section 5.3. Which form of coal has the highest proportion of carbon?

Peat correct incorrect

Lignite correct incorrect

Bituminous coal correct incorrect

Anthracite correct incorrect

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. Section 5.4 describes the uses of coal including the production of town gas from coal. What were the main gaseous constituents of town gas?

Carbon monoxide, methane, and hydrogen correct incorrect

Hydrogen and carbon dioxide correct incorrect

Methane and ethane correct incorrect

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. How is water gas made?

By passing an electric current through water correct incorrect

By spraying water onto red-hot coke correct incorrect

By bubbling town gas through water correct incorrect

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. Section 5.5 describes the global coal resource. Box 5.4 describes the distinction between reserves and resources. How would a body of coal be described that was firmly known to exist but was not actually economic to mine?

A coal reserve correct incorrect

A hypothetical coal resource correct incorrect

A conditional coal resource correct incorrect

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. What proportion of US coal comes from the state of Wyoming?

A quarter correct incorrect

Over 40% correct incorrect

60% correct incorrect

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. Section 5.6 describes fires, furnaces, and boilers. A pulverized fuel boiler burns coal in what form?

Crushed to gravel-sized lumps correct incorrect

Crushed to a fine dust correct incorrect

As large pieces correct incorrect

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. Which gas makes up the bulk of power station flue gases?

Sulfur dioxide correct incorrect

Carbon dioxide correct incorrect

Nitrogen correct incorrect

Oxygen correct incorrect

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. The use of flue gas desulfurization is likely to require large quantities of which mined mineral?

Limestone correct incorrect

Bauxite correct incorrect

Lithium carbonate correct incorrect