Chapter 1 Multiple Choice Questions

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1) The inventor of the steam engine was…

Carnot. correct incorrect

Newcomen. correct incorrect

Papin. correct incorrect

Savery. correct incorrect

Von Guericke. correct incorrect

Watt. correct incorrect

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2) The equivalence of mechanical energy and heat was verified by…

Carnot. correct incorrect

Parsons. correct incorrect

Watt. correct incorrect

Rumford. correct incorrect

Joule. correct incorrect

Newton. correct incorrect

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3) Match each of the following devices to the corresponding power output.

3a.

4 kW

Select an answer choice Typical thermal power station Large solar PV farm Boeing 747 gas turbine Newcomen steam engine Parsons' steam turbine Treadwheel

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3b.

2 x 10⁶ kW

Select an answer choice Typical thermal power station Boeing 747 gas turbine Treadwheel Newcomen steam engine Large solar PV farm Parsons' steam turbine

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3c.

10³ kW

Select an answer choice Parsons' steam turbine Typical thermal power station Boeing 747 gas turbine Newcomen steam engine Treadwheel Large solar PV farm

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3d.

6 x 10⁴ kW

Select an answer choice Boeing 747 gas turbine Parsons' steam turbine Newcomen steam engine Large solar PV farm Typical thermal power station Treadwheel

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3e.

0.2 kW

Select an answer choice Newcomen steam engine Boeing 747 gas turbine Typical thermal power station Parsons' steam turbine Large solar PV farm Treadwheel

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3f.

2 x 10⁶ kW

Select an answer choice Parsons' steam turbine Boeing 747 gas turbine Newcomen steam engine Typical thermal power station Treadwheel Large solar PV farm

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4) Match each of the following dates to the corresponding invention.

4a.

1799

Select an answer choice Silicon photocell Electric battery Power station Rechargeable Li-ion battery Powered flight Water turbine

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4b.

1832

Select an answer choice Powered flight Water turbine Electric battery Rechargeable Li-ion battery Silicon photocell Power station

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4c.

1881

Select an answer choice Power station Powered flight Electric battery Water turbine Silicon photocell Rechargeable Li-ion battery

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4d.

1903

Select an answer choice Power station Powered flight Rechargeable Li-ion battery Silicon photocell Electric battery Water turbine

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4e.

1954

Select an answer choice Rechargeable Li-ion battery Powered flight Water turbine Power station Electric battery Silicon photocell

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4f.

1980

Select an answer choice Silicon photocell Rechargeable Li-ion battery Water turbine Electric battery Power station Powered flight

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5) The global total energy consumed by users and as products is called the _____ ______ ______.

Your response

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6) Which of the following statements are true? Please select all that apply.

The greenhouse effect is mainly due to carbon dioxide and water vapour in the atmosphere. correct incorrect

Watt's idea of installing a separate condenser made steam engines more efficient. correct incorrect

There is no correlation between a person's standard of living and their energy consumption. correct incorrect

Edison patented the first electric light bulb. correct incorrect

Most energy is derived from fossil fuels. correct incorrect

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7) _____ energy is _____ and affordable, and its generation is not damaging to the environment or to people.

Your response

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8) Match the efficiencies with the power sources.

8a.

Electric motor

Select an answer choice ~25% ~90% ~35% ~45%

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8b.

Petrol (gasoline) car

Select an answer choice ~45% ~35% ~25% ~90%

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8c.

Diesel car

Select an answer choice ~90% ~45% ~35% ~25%

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8d.

Diesel truck

Select an answer choice ~35% ~25% ~45% ~90%

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9) Which part of the world has shown the largest economic growth since 2000?

USA correct incorrect

China correct incorrect

Europe correct incorrect

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10) The variations in solar irradiance on Earth associated with small periodic changes in the Earth's orbit around the Sun are called ____________ ______.

Your response

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11) Which of the following statements about the Earth's climate are true? Please select all that apply.

The amount of atmospheric water vapour is essentially determined by the Earth's temperature. correct incorrect

The Ice Ages were caused by a decrease in the atmospheric concentration of carbon dioxide. correct incorrect

Global warming is mainly determined by the cumulative emissions of carbon dioxide rather than the rate of emissions. correct incorrect

Global warming can cause increased snowfall as well as rainfall. correct incorrect

Aerosols in the atmosphere have a warming effect on the climate. correct incorrect

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12) In the _______ _______of 2015, nations agreed to limit global warming to 2 °C and, if possible, move towards a limit of 1.5 °C.

Your response

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13) Which of the following is the largest contributor to anthropogenic greenhouse gas emissions after fossil fuel use?

Methane emissions correct incorrect

Nitrous oxide emissions correct incorrect

Land-use change correct incorrect

Fluorocarbon emissions correct incorrect

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14) Match the percentages to the given activities.

14a.

Energy from fossil fuels

Select an answer choice ~40% ~25% ~10% ~80% ~65%

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14b.

Energy-related CO₂ emissions from industry

Select an answer choice ~10% ~40% ~65% ~25% ~80%

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14c.

Energy-related CO₂ emissions from transport

Select an answer choice ~25% ~40% ~80% ~10% ~65%

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14d.

Contribution of CO₂ from fossil fuels and industry to global GHG emissions

Select an answer choice ~40% ~10% ~25% ~80% ~65%

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14e.

Contribution of CO₂ from forestry and other land-use to global GHG emissions

Select an answer choice ~40% ~80% ~25% ~65% ~10%

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15) The energy trilemma is the challenge of meeting the requirements of energy ____ , _____ energy for all, and environmental _____.

Your response

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16) The average annual power output of a power plant as a fraction of its rated power is called its _______ ________.

Your response

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17) A ____ _____ _____ is a calculation of the amount of greenhouse gases emitted in a process.

Your response

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18) Match the area requirements with the power sources.

18a.

Onshore wind farm

Select an answer choice ~0.2 sq km for 1 TWh per year ~7.5–20 sq km for 1 TWh per year ~30-50 sq km for 1 TWh per year ~50–90 sq km for 1 TWh per year

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18b.

Nuclear power plant

Select an answer choice ~7.5–20 sq km for 1 TWh per year ~0.2 sq km for 1 TWh per year ~30-50 sq km for 1 TWh per year ~50–90 sq km for 1 TWh per year

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18c.

Solar PV farm

Select an answer choice ~7.5–20 sq km for 1 TWh per year ~30-50 sq km for 1 TWh per year ~50–90 sq km for 1 TWh per year ~0.2 sq km for 1 TWh per year

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18d.

Offshore wind farm

Select an answer choice ~50–90 sq km for 1 TWh per year ~0.2 sq km for 1 TWh per year ~30-50 sq km for 1 TWh per year ~7.5–20 sq km for 1 TWh per year

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19) Match the capacity factors with the power sources.

19a.

Wind farm onshore

Select an answer choice ~35% ~90% ~50% ~20%

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19b.

Nuclear power plant

Select an answer choice ~35% ~50% ~90% ~20%

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19c.

Solar PV farm

Select an answer choice ~50% ~35% ~20% ~90%

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19d.

CCGT power plant

Select an answer choice ~20% ~35% ~90% ~50%

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20) In regions where there are good winds or medium to high solar intensities, is the levelized cost of electricity from wind and from solar PV now (2020) competitive with fossil fuel-generated electricity?

True correct incorrect

False correct incorrect

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21) The _____ _____ for a technology is the percentage reduction in costs for a doubling in cumulative production.

Your response

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22) Match the emissions (gCO₂eq kWh^-1) to the different sources of electricity.

22a.

Nuclear power

Select an answer choice ~450 ~10 ~950 ~45

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22b.

Solar PV

Select an answer choice ~10 ~45 ~450 ~950

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22c.

Coal

Select an answer choice ~950 ~10 ~45 ~450

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22d.

Gas

Select an answer choice ~10 ~450 ~950 ~45

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23) Which of the following are units of energy? Please select all that apply.

gigawatt correct incorrect

BTU s^-1 correct incorrect

kWh correct incorrect

toe y^-1 correct incorrect

N m correct incorrect

GWy correct incorrect

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24) The contribution that a technology can make by a certain time in terms of the electricity generation in TWh per year is termed the __________ potential.

Your response

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25) What are the following acronyms: H____ D____ I____, I___ P___ C___ C___, L___ C___ A____, L___ C___ O___ E___ .

Your response

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26) 10000 tonnes of coal are used per day in a power station. What is the approximate annual production of electricity in TWh?

~2 correct incorrect

~5 correct incorrect

~11 correct incorrect

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27) Match the correct units to each of the following quantities.

27a.

ML^-1T^-2

Select an answer choice Efficiency Power Pressure Force Energy

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27b.

ML²T^-3

Select an answer choice Energy Efficiency Force Pressure Power

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27c.

ML²T^-2

Select an answer choice Force Energy Efficiency Power Pressure

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27d.

MLT^-2

Select an answer choice Efficiency Power Pressure Energy Force

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27e.

M⁰L⁰T⁰

Select an answer choice Energy Pressure Force Efficiency Power