EGEE – Exam 2 Prep – Energy and Environmental Engineering – study
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True - ANS ✔✔True or False? Solar water heating systems reduce the amount of heat that must be
provided by conventional energy sources such as electricity.
120 degrees - ANS ✔✔Water heaters are typically set to _____degrees F.
False - ANS ✔✔True or False? Insulating the cold water pipes will save a lot of energy.
True - ANS ✔✔True or False? Leaking faucets can increase your energy costs.
High - ANS ✔✔Solar thermosiphon systems are most efficient in areas with ____ levels of solar
radiation.
Operating Cost - ANS ✔✔The cost of energy used by an appliance over a year is referred to as
___________
Water will become more acidic - ANS ✔✔If you leave a glass of distilled water on the table in contact
with air, how will the water acidity change over time?
4.2-5.2 - ANS ✔✔What is the typical acid rain pH?
Sulfur Dioxide and Nitrogen Dioxide - ANS ✔✔Which of the following pollutants are known to
contribute to acid rain? Check all that apply.
Chlorine compounds (CFCs etc) - ANS ✔✔Which of the common pollutants are known to harm the
Earth's ozone layer?
True - ANS ✔✔True or False? Most of the Earth's ozone is present in the stratosphere.
, 3mm - ANS ✔✔If the all the ozone dispersed in the atmosphere is compressed to pure state, what
would be the thickness of this hypothetical ozone layer?
False - ANS ✔✔True or False? The ozone hole is located where the atmospheric ozone (O3) is
completely absent, for example over Antarctica.
NOx gasses, sunlight, volatile organic compounds, oxygen - ANS ✔✔What components are necessary
to produce photochemical smog near the Earth surface? Check all that apply.
Transportation cars and trucks - ANS ✔✔In large cities, most smog forming pollutants are emitted by
which sector?
Forms in air - ANS ✔✔Where does tropospheric ozone (O3) come from?
Capacity / total energy per cycle - ANS ✔✔Which efficiency metric is used to characterize
performance of clothes washers?
Clothes Dryer - ANS ✔✔The combined energy factor is used to characterize the performance of which
appliance?
Energy Star Label - ANS ✔✔Which label on appliance indicates that it provides significant energy
savings compared to Federal minimum standards?
Evaporation - ANS ✔✔In the heat pump cycle, which physical processes create cooling effect for the
surrounding?
Compressor >> Condenser >> Expansion valve >> Evaporator - ANS ✔✔What is the correct order of
the heat pump stages in the refrigeration cycle?
Dryer - ANS ✔✔Which home appliance is responsible for highest energy costs in the clothes washing
cycle?
material
True - ANS ✔✔True or False? Solar water heating systems reduce the amount of heat that must be
provided by conventional energy sources such as electricity.
120 degrees - ANS ✔✔Water heaters are typically set to _____degrees F.
False - ANS ✔✔True or False? Insulating the cold water pipes will save a lot of energy.
True - ANS ✔✔True or False? Leaking faucets can increase your energy costs.
High - ANS ✔✔Solar thermosiphon systems are most efficient in areas with ____ levels of solar
radiation.
Operating Cost - ANS ✔✔The cost of energy used by an appliance over a year is referred to as
___________
Water will become more acidic - ANS ✔✔If you leave a glass of distilled water on the table in contact
with air, how will the water acidity change over time?
4.2-5.2 - ANS ✔✔What is the typical acid rain pH?
Sulfur Dioxide and Nitrogen Dioxide - ANS ✔✔Which of the following pollutants are known to
contribute to acid rain? Check all that apply.
Chlorine compounds (CFCs etc) - ANS ✔✔Which of the common pollutants are known to harm the
Earth's ozone layer?
True - ANS ✔✔True or False? Most of the Earth's ozone is present in the stratosphere.
, 3mm - ANS ✔✔If the all the ozone dispersed in the atmosphere is compressed to pure state, what
would be the thickness of this hypothetical ozone layer?
False - ANS ✔✔True or False? The ozone hole is located where the atmospheric ozone (O3) is
completely absent, for example over Antarctica.
NOx gasses, sunlight, volatile organic compounds, oxygen - ANS ✔✔What components are necessary
to produce photochemical smog near the Earth surface? Check all that apply.
Transportation cars and trucks - ANS ✔✔In large cities, most smog forming pollutants are emitted by
which sector?
Forms in air - ANS ✔✔Where does tropospheric ozone (O3) come from?
Capacity / total energy per cycle - ANS ✔✔Which efficiency metric is used to characterize
performance of clothes washers?
Clothes Dryer - ANS ✔✔The combined energy factor is used to characterize the performance of which
appliance?
Energy Star Label - ANS ✔✔Which label on appliance indicates that it provides significant energy
savings compared to Federal minimum standards?
Evaporation - ANS ✔✔In the heat pump cycle, which physical processes create cooling effect for the
surrounding?
Compressor >> Condenser >> Expansion valve >> Evaporator - ANS ✔✔What is the correct order of
the heat pump stages in the refrigeration cycle?
Dryer - ANS ✔✔Which home appliance is responsible for highest energy costs in the clothes washing
cycle?
