EGEE 101 Final exam

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wind is caused by uneven heating of the earth's surface a- true b- false

a

nuclear, wind, solar, and hydropower are all renewable forms of energy? a- true b- false

b

what is the main component of natural gas? A: oxygen B: ethane C: propane D: decane E: methane

e

what is work? A: the capacity to create energy B: A real bummer C: the capacity to create power D: A job E: Force*displacement

e

which coal has the highest heating value? A: anthracite B: lignite C: sub-bituminous D: bituminous E: anthrogenous

A

A proximate analysis shows that a certain lignite coal is 10% moisture, 30% volatiles, and 10% ash. What is the % fixed carbon? A: 50% B: 40% C: 30% D: 20% E: 10%

a

As population increases, energy consumption increases a- true b- false

a

A btu is defined as the amount of energy required to raise the temperature of one lb of water by one degree Celsius a- true b- false

b

the temperature at which nuclear fusion becomes possible A: 13 million F B: 100 million C C: 13 million C D: 100 million F E: 13 C

c

which fossil fuel contains ash? a- oil b- natural gas c- coal

c

nuclear fuel rods are _____ uranium by concentration A: 90-100% B: 60-63% C: 10-15% D: 3-4% E: 1-2%

d

the consensus of the scientific community is that deep geologic storage of high level radioactive waste is a safe long term solution a- true b- false

a

geothermal power plants are best when located A: Near rift zones B: Near energy markets C: In the interior of continents D: Near the equator E: Far away from active seismic zones

a

is the US a net importer or exporter of natural? a- net exporter b- net importer c- touchdown

a

Which is more expensive, $100/ton of coal or $3/MCF of natural gas? a- natural gas b- coal

b

weather and climate change are the same thing a- true b- false

b

what percentage of the US's electricity comes from hydroelectric damns A: 2.8% B: 5% C: 6% D: 20% E: 40%

c

A power plant produces 50 MJ of useful energy and 200 MJ of wasted heat. What is the Efficiency? A: 50% B: 100% C: 33% D: 20% E: 67%

d

After a uranium based fuel rod has spent 3 years in a reactor, how much of its uranium has been used? a- 90% b- 70% c- 50% d- 10% e- 3%

d

Betz's law dictates that the maximum efficiency that can be achieved with a wind turbine is A: 5.9% B: 33% C: 50% D: 100% E: 59%

e

biomass is essentially carbon neutral a- true b- false

a

radioactive decay that emits two protons and two neurons a- alpha decay b- beta decay c- gamma radiation

a

a technology that extracts energy out of waves A: lunar energy B: solar energy C: nuclear energy D: tidal energy E: astro energy

d

A hydropower dam is rated for 1 GW power generation. The annual energy output is 4380 GWh. What percentage of its capacity is used? A: 10% B: 25% C: 50% D: 75% E: 100%

c

A power plant produces 50 MJ of useful energy and 100 MJ of wasted heat. What is the Efficiency? A: 50% B: 100% C: 33% D: 20% E: 67%

c

The process of one larger nucleus dividing into smaller nuclei A: Combinatorics B: Nuclear reactor C: Nuclear fission D: Nuclear fusion E: Nucleation

c

Which size of particulates are the most harmful to human health? A: 0 microns B: 0 microns to 0.1 microns C: 0.1 micron to 2.0 microns D: 2.0 microns to 4.0 microns E: greater than 4.0 microns

c

the challenge associated with wind energy that fluctuates throughout the day A: storage B: unpredictability C: intermittency D: location E: dilute

c

which fossil fuel has the highest heating value per lb? A: coal B: oil (petroleum) C: natural gas

c

which fossil fuel is the cleanest burning? a- coal b- oil (petroleum) c- natural gas

c

which of the fossil fuels are regional commodities with regional prices a- coal and oil b- oil and natural gas c- coal and natural gas

c

How long has hydraulic fracturing "fracking" been being performed in the US A: since 2002 B: since 1996 C: since 1968 D: since 1947 E: since 1958

d

How much carbon dioxide have we emitted into the atmosphere by burning fossil fuels since the industrial revolution? A: a million tons B: a billion tons C: half a billion tons D: half a trillion tons E: a trillion tons

d

The process of two smaller nuclei combining into one larger nucleus A: Combinatorics B: Nuclear reactor C: Nuclear fission D: Nuclear fusion E: Nucleation

d

What is the form of energy contained in a dam called? A: Kinetic B: Chemical C: Nuclear D: Potential E: Electrical

d

how many ranks of coal are there? a- one b- two c- three d- four e- five

d

if a solar farm requires 40 acres in Iowa (210 sunny days per year), how much land would it require in Nevada (350 sunny days per year)? A: 40 acres B: 35 acres C: 28 acres D: 24 acres E: 21 acres

d

if h = 3 meters, q = 3 cubic meters per second, and efficiency is 50%, what is the power output in watts? Assume 9.81 A: 33,145 Watts B: 20,018 Watts C: 40,544 Watts D: 44,145 Watts E: 64,518 Watts

d

Approximately how much stronger do climate models predict extreme weather like hurricanes will become by 2100 A: 2% B: 100% C: 20% D: 30% E: 10%

e

If there are 6,500 TCF of proved reserves of natural gas in the world and we are consuming 123 TCF per year, how long until we run out? A: 100 years B: 23.3 years C: 16 years D: 88 years E: 52.8 years

e

at current US reserves, how long will coal last? A: 10 years B: 86 years C: 100 years D: 150 years E: 283 years

e

installing radiant flooring, insulating windows, and heavy curtains to absorb the sun's warmth A: active solar heating B: PV cells C: conductors D: concentrated thermal energy E: passive solar heating

e

the problem of needing to install large transmission capacity to move electrons from the power generation source to a market A: storage problem B: dilute energy problem C: intermittency problem D: unpredictability problem E: location problem

e

what is energy? A: The ability to create power B: The capacity to do work C: The propensity to commit crime D: The density of milk E: Force*displacement

b

what is the largest energy consumer at home? A: insulation B: space heating C: lighting D: driving a car E: cat memes

b

At current US reserves, how long will natural gas last? a- 86 yrs b- 8 yrs c- 50 yrs d- 200 yrs e- 300 yrs

a

Human development (health, nutrition, education, housing) and a high level of energy use are correlated - we rarely see one without the other. a- true b- false

a

In the past, decreasing fertility rates were associated with decreasing poverty levels a- true b- false

a

The three main problems with fossil fuels are that they are non-renewable (fixed amount), pollution, and climate change. a- true b- false

a

how much did the temperature warm from 1850 to 2007? A: 0.85 C B: 0.85 F C: 2.0 C D: 3.0 F E: 3.85 C

a

if a solar farm generates 10 MW in Arizona (320 sunny days per year) is moved to Pennsylvania (160 sunny days per year), what is the new power output? A: 5 MW B: 10 MW C: 20 MW D: 2.5 MW E: 8 MW

a

layers of silicon that directly convert sunlight into an electric current A: photovoltaic cells B: passive solar C: active solar D: concentrated solar E: conductors

a

oil and natural gas typically form in what environment A: marine life preserved at the bottom of deep lakes B: plants in a humic, swamp environment C: at a gas station D: in whales E: in cows

a

reflecting sunlight off of mirrors to create concentrated heat for generating steam to rotate a turbine to induce an electric current A: solar thermal energy conversion B: passive solar C: active solar D: PV cells E: conductors

a

the sun delivers approximately 10,000 times more energy per second to the earth than the whole world's population uses a- true b- false

a

what is the main use for petroleum? A: transportation B: electricity production C: home heating D: kerosene lamps E: creation of plastics

a

A calorie is defined as the amount of energy required to raise the temperature of one lb of water by one degree Celsius a- true b- false

b

What percentage of the world's electricity comes from hydroelectric dams? A: 7% B: 16% C: 40% D: 27% E: 47%

b

panels that use sunlight to heat up air or water and transfer it to your forced air heating or residential water heater A: PV cells B: active solar heating C: passive solar heating D: concentrated solar E: conductors

b

the challenge associated with wind energy whose power output cannot be forecast in advance A: intermittency B: predictability C: storage D: dilute E: location

b


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