EGEE 101 Final exam
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
