2.3 Energy Utilization

Which of these contributes to a product’s embodied energy?

• Initial Use

• Disposal

• Assembly

• Disassembly

Which of the following systems for individual energy generation would have the least impact on the surrounding area?

• Geo-thermal

• Solar PV Systems

• Wind Turbine

• Micro-Hyro

Which of the following strategies would be the easiest way to ensure energy was being used most efficiently?

• Constructing power plants closer to cities

• Combining renewable and non-renewable energy sources

• Implementing combined heat and power (CHP)

• Reducing reliance on international grid systems

What is a major disadvantage of lead acid batteries?

• They are inefficient

• They are expensive

• They contain hazardous chemicals which are harmful to the environment

• They are unreliable

Which of the following battery types is the most efficient?

• Lithium

• Lead acid

• Hydrogen fuel cell

• NiCad

As an energy generation process, CHP (Combined Heat and Power) is fuel neutral. What does this mean?

• It can clean fuels

• It can neutralise fuels

• It can be applied to renewable and fossil fuels

• It can take subsidies from fossil fuels

Embodied energy is the sum of all the energy required to produce any goods or services. Which of the following building materials would have the lowest levels of embodied energy?

• Steel

• Stone

• Concrete

• Plastic

What best describes a combined heat and power approach?

• A national energy distribution system

• A macro energy policy

• A sustainable energy strategy

• An efficient way of generating electrical and thermal energy from a single source

How is the embodied energy of a product best described?

• The energy consumed by just the extraction of raw materials

• The energy consumed by the manufacturing processes and the product in use

• The energy consumed by the extraction of raw materials, manufacturing processes and the product in use

• The energy consumed by the extraction of raw materials, manufacturing processes and recovery

What type of batteries are used in cell/mobile phones?

• Hydrogen fuel cells

• NiCad

• Lead acid

• Lithium