EGEE 101 – Exam 3 – Energy and Environmental Engineering – study material
Which of the following is not a challenge with wind and solar power? - correct answer ✔✔non-
renewable
What is the main reason that our power grid uses alternating current technology? - correct answer
✔✔AC power is easier to transform to higher/lower voltages
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? - correct answer ✔✔5 MW
the consensus of the scientific community is that deep geologic storage of high level radioactive waste is
a safe long term solution - correct answer ✔✔true
If a wind turbine extracted 100% of the kinetic energy out of the wind, what would happen? - correct
answer ✔✔the wind would stop blowing
layers of silicon that directly convert sunlight into an electric current are called what? - correct answer
✔✔photovoltaic cells
panels that use sunlight to heat up water, spinning a turbine are called what? - correct answer
✔✔concentrated solar
Alternating current power is based on what physical concept? - correct answer ✔✔The relationship
between electricity and magnetism
Which describes a main difference between solar and wind? - correct answer ✔✔wind turbines tend
to produce more at night, while solar panels to produce more during the day
he problem of needing to install large transmission capacity to move electrons from the power
generation source to a market is called what? - correct answer ✔✔location problem
, Wind energy produced depends on which of the following factors: - correct answer ✔✔turbine height,
wind speeds, size of the blades
In an alternating current power system, if the current is increased while keeping power constant, what
must happen to voltage? - correct answer ✔✔voltage decreases
nuclear, wind, solar, and hydropower are all renewable forms of energy - correct answer ✔✔false
the reason hydropower is considered renewable is - correct answer ✔✔the hydrologic cycle
the challenge associated with wind energy whose power output cannot be forecast in advance - correct
answer ✔✔predictability
the Chernobyl accident was a nuclear explosion - correct answer ✔✔false
nuclear weapons can be converted to nuclear reactors - correct answer ✔✔true
wind is caused by uneven heating of the earth's surface - correct answer ✔✔true
Which of the following probably produces direct current? - correct answer ✔✔solar photovoltaics
Which of the following describes the minute to minute variability of wind energy? - correct answer
✔✔turbulence
nuclear, wind, solar, and hydropower are all energy forms that do not directly emit carbon dioxide into
the atmosphere - correct answer ✔✔true
Which of the following strategies is used to smooth variability from wind and solar? - correct answer
✔✔energy storage, interconnecting multiple wind and solar plants
Which of the following is not a challenge with wind and solar power? - correct answer ✔✔non-
renewable
What is the main reason that our power grid uses alternating current technology? - correct answer
✔✔AC power is easier to transform to higher/lower voltages
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? - correct answer ✔✔5 MW
the consensus of the scientific community is that deep geologic storage of high level radioactive waste is
a safe long term solution - correct answer ✔✔true
If a wind turbine extracted 100% of the kinetic energy out of the wind, what would happen? - correct
answer ✔✔the wind would stop blowing
layers of silicon that directly convert sunlight into an electric current are called what? - correct answer
✔✔photovoltaic cells
panels that use sunlight to heat up water, spinning a turbine are called what? - correct answer
✔✔concentrated solar
Alternating current power is based on what physical concept? - correct answer ✔✔The relationship
between electricity and magnetism
Which describes a main difference between solar and wind? - correct answer ✔✔wind turbines tend
to produce more at night, while solar panels to produce more during the day
he problem of needing to install large transmission capacity to move electrons from the power
generation source to a market is called what? - correct answer ✔✔location problem
, Wind energy produced depends on which of the following factors: - correct answer ✔✔turbine height,
wind speeds, size of the blades
In an alternating current power system, if the current is increased while keeping power constant, what
must happen to voltage? - correct answer ✔✔voltage decreases
nuclear, wind, solar, and hydropower are all renewable forms of energy - correct answer ✔✔false
the reason hydropower is considered renewable is - correct answer ✔✔the hydrologic cycle
the challenge associated with wind energy whose power output cannot be forecast in advance - correct
answer ✔✔predictability
the Chernobyl accident was a nuclear explosion - correct answer ✔✔false
nuclear weapons can be converted to nuclear reactors - correct answer ✔✔true
wind is caused by uneven heating of the earth's surface - correct answer ✔✔true
Which of the following probably produces direct current? - correct answer ✔✔solar photovoltaics
Which of the following describes the minute to minute variability of wind energy? - correct answer
✔✔turbulence
nuclear, wind, solar, and hydropower are all energy forms that do not directly emit carbon dioxide into
the atmosphere - correct answer ✔✔true
Which of the following strategies is used to smooth variability from wind and solar? - correct answer
✔✔energy storage, interconnecting multiple wind and solar plants
