Chapter 3 Multiple choice questions

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. Section 3.2 describes different forms and types of energy. Which type is registered by a domestic electricity meter?

Final energy correct incorrect

Useful energy correct incorrect

Primary energy correct incorrect

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. The expanding uses of energy are described in Section 3.3. Approximately how much energy does a human being consume per day in the form of food?

1 MJ correct incorrect

1 kWh correct incorrect

10 kWh correct incorrect

10 MJ correct incorrect

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. What energy-intensive chemical process is used for the manufacture of nitrogenous fertilizer?

Leblanc process correct incorrect

Fischer-Tropsch process correct incorrect

Haber-Bosch process correct incorrect

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. Section 3.3 describes domestic energy use. Table 3.1 gives the efficacies of some electric light sources assuming an electricity generation efficiency of 35%. What would be the efficacy of a domestic LED lamp in lumens per watt of primary energy if the electricity power station efficiency was increased to 50%?

36 lumens per watt correct incorrect

50 lumens per watt correct incorrect

65 lumens per watt correct incorrect

72 lumens per watt correct incorrect

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. Section 3.3 also describes industrial energy use. Box 3.2 describes embodied energy. Using average values from Table 3.2, how much more energy intensive is aluminium manufacture per kilogram than that for iron?

About twice correct incorrect

6 times correct incorrect

Nearly 13 times correct incorrect

20 times correct incorrect

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. Section 3.4 describes UK energy use. What proportion of UK final energy use in 2018 was for providing transport?

35% correct incorrect

40% correct incorrect

45% correct incorrect

50% correct incorrect

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. Figure 3.10 in Section 3.4 shows about 350 EJ of coal in the primary energy bar, but very little solid fuel in the top final energy bar. Where has the rest of the coal gone?

It has been exported. correct incorrect

It has been turned into gas. correct incorrect

It has been used for electricity generation. correct incorrect

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. Roughly what proportion of the 'Losses in conversion and delivery' shown in Figure 3.10 are accounted for by the waste heat, losses, and own use energy in electricity supply, shown later in Figure 3.13?

A quarter correct incorrect

A half correct incorrect

Three quarters correct incorrect

All of it correct incorrect

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. Section 3.5 describes international energy comparisons. In 2018 roughly how much larger was US annual per capita electricity consumption than that for the UK?

1.7 times larger correct incorrect

Twice as large correct incorrect

2.7 times larger correct incorrect

3.2 times larger correct incorrect

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. Section 3.5 describes international energy comparisons. By how much did Chinese per capita GDP increase between 1980 and 2014?

It increased by factor of over 20. correct incorrect

It increased 10-fold. correct incorrect

It increased 5-fold. correct incorrect