INT6066 - Green Energy

Which of the following forms of energy is primarily used in a hydroelectric power station?

• Chemical Energy

• Heat Energy

• Mechanical Energy

•  Electrical Energy

 Which of the following statements about energy conversion is true?

• Energy can be created from nothing

• Energy can be destroyed

• Energy can be converted from one form to another

•  None of the above

What is the formula for calculating energy efficiency?

•  Efficiency = (Useful Energy Output / Total Energy Input) × 100%

• Efficiency = (Total Energy Input / Useful Energy Output)

• Efficiency = Useful Energy Output - Total Energy Input

• Efficiency = Total Energy Input + Useful Energy Output

Which process primarily involves the transfer of heat through fluids?

• Conduction

• Convection

• Radiation

• Evaporation

Which of the following factors does NOT affect heat transfer?

• Temperature

• Material

• Distance

• Color of light

What is one disadvantage of using fossil fuels as an energy source?

• Renewable

• Causes Air Pollution

• High Efficiency

•  Low Cost