Chapter 11 Multiple Choice Questions

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1) Limiting global warming to 1.5 °C requires drastic action in the coming decades, in both ______ to _______ sources of energy and in reducing ______ _______.

Your response

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2) Industry is easier to decarbonize than buildings.

True correct incorrect

False correct incorrect

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3) Energy usage in buildings, industry, and transport accounts for what percentage of global final energy demand?

~50% correct incorrect

~70% correct incorrect

~90% correct incorrect

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4) Limiting global warming to 1.5 °C will require reducing emissions by 2050 by at least close to…

40%. correct incorrect

60%. correct incorrect

80%. correct incorrect

90%. correct incorrect

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5) The percentages of the final energy demand from buildings, industry, and transport, respectively, are approximately…

30%, 29%, 29%. correct incorrect

26%, 34%, 28%. correct incorrect

32%, 35%, 22%. correct incorrect

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6) The percentage of the total global electricity usage that lighting accounts for is…

~10%. correct incorrect

~15%. correct incorrect

~20%. correct incorrect

~25%. correct incorrect

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7) A passive design is one that uses the local ______conditions and appropriate materials to help maintain comfortable temperatures.

Your response

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8) Buildings with a large thermal mass…

closely follow the external temperature. correct incorrect

are most useful in regions where there is a large difference between day- and night-time temperatures. correct incorrect

can be less effective in hot humid regions. correct incorrect

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9) On one day during the period from 00:00 to 11:59 the average ambient temperature was 12.3 °C, and from 12:00 to 23:59 it was 13.1 °C; the base temperature was 15.5 °C. What was the number of degree-days for that day?

1.4 correct incorrect

2.8 correct incorrect

5.6 correct incorrect

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10) Cutting emissions from existing buildings can be achieved, in particular, by ______ __ _______ sources of electricity and heating, and improving their _______.

Your response

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11) Energy intensity and materials intensity are each improved by 10% throughout industry. What percentage improvement in carbon intensity is required to reduce emissions by 50%?

17% correct incorrect

33% correct incorrect

62% correct incorrect

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12) _____ _____ is when the production of a product is transferred to another country, where production costs are less and limits on carbon emissions are less stringent.

Your response

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13) The efficiency with which materials are used can be improved through 'reduce, ___, and ___'.

Your response

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14) Five options for fuel switching in industry are ____ ____ ____ ____, and ____.

Your response

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15) Emissions from the iron and steel industry and from cement production account for over what percentage of the direct emissions from industry?

~35% correct incorrect

~50% correct incorrect

~70% correct incorrect

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16) _______ generated by off-shore wind power could be used for decarbonizing ____ ____ and _____ _____ _____.

Your response

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17) Match the following reactions to their names.

17a.

CH₄ + H₂O → 3H₂ + CO

Select an answer choice Water-gas shift reaction Haber process Steam reforming Sabatier process

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17b.

CO + H₂O → CO₂ + H₂

Select an answer choice Steam reforming Water-gas shift reaction Haber process Sabatier process

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17c.

CO₂ +4H₂ → CH₄ + 2H₂O

Select an answer choice Sabatier process Haber process Water-gas shift reaction Steam reforming

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17d.

N₂ +3H₂ → 2NH₃

Select an answer choice Water-gas shift reaction Haber process Steam reforming Sabatier process

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18) Alternatives to making steel with coke are to use _____, _____, or _____.

Your response

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19) Which of the following statements about carbon capture and storage in industry are true?
Please select all that apply.

Storages sites are readily available. correct incorrect

Transport costs are significant. correct incorrect

Economies of scale are possible. correct incorrect

Integration will generally be straightforward. correct incorrect

Negative emissions are possible. correct incorrect

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20) Light goods vehicles (LDVs) account for what percentage the global energy use in transport?

~20% correct incorrect

~30% correct incorrect

~45% correct incorrect

~65% correct incorrect

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21) Which of the following statements about hydrogen fuel cells are true?
Please select all that apply.

They can provide carbon-free electricity with very low emissions and good electrical efficiencies of ~80%. correct incorrect

Fuel cells are quiet and reliable. correct incorrect

The advantages of fuel cells rather than batteries for trucks are an increased range and speed of refueling. correct incorrect

The main source of hydrogen for fuel cells is currently from fossil fuels. correct incorrect

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22) A ____ ____ is an electrochemical device that can be used to generate electricity.

Your response

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23) Match the following means of lowering the carbon intensity to the modes of transport that would be most effective.

23a.

Cars

Select an answer choice Electrification Ammonia Fuels from power-to-gas

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23b.

Ships

Select an answer choice Fuels from power-to-gas Ammonia Electrification

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23c.

Planes

Select an answer choice Ammonia Electrification Fuels from power-to-gas

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24) Avoid journeys by using _____ ______ and _______ ________.

Your response