Renewable Energy Systems MCQs (Part-6)

What is the primary function of photovoltaic (PV) systems?

A Generate heat
B Store energy
C Convert sunlight to electricity
D Reduce carbon footprint

Which of the following is a key factor in improving energy efficiency?

A Reducing waste
B Expanding infrastructure
C Burning more fossil fuels
D Increasing consumption

Which energy source produces the smallest carbon footprint?

A Oil
B Coal
C Natural gas
D Solar

What is the role of an inverter in a photovoltaic system?

A Measure power output
B Store electricity
C Convert DC to AC
D Convert AC to DC

Which of the following is a benefit of using energy-efficient appliances?

A Lower performance
B Reduced carbon emissions
C Higher energy costs
D Increased energy consumption

What is the main environmental impact of burning fossil fuels for energy?

A Soil degradation
B Habitat destruction
C Water pollution
D High carbon emissions

What is a common use of energy storage in renewable energy systems?

A Reduce electricity output
B Store excess energy
C Increase energy consumption
D Burn fossil fuels

Which of the following is an example of distributed generation?

A Solar panels on rooftops
B Gas-fired power plants
C Hydroelectric dams
D Large nuclear power plants

What is a carbon footprint?

A The amount of waste produced
B The amount of land needed for energy production
C The total greenhouse gas emissions
D The amount of water used

Which renewable energy source has the least environmental impact during operation?

A Solar energy
B Hydropower
C Biomass
D Wind energy

What is the main function of an energy audit?

A Burn fossil fuels
B Install energy-efficient systems
C Assess energy usage and savings
D Increase energy costs

Which of the following is an important factor in the design of a photovoltaic system?

A Wind speed
B Temperature fluctuations
C Solar panel efficiency
D Water availability

What does the term “net metering” refer to in renewable energy?

A Buying energy from the grid
B Selling energy to the grid
C Measuring solar panel output
D Returning excess energy to the grid

What is the most common method used to reduce energy consumption in buildings?

A Increasing heating usage
B Improving insulation
C Using more appliances
D Installing solar panels

What is the primary purpose of a photovoltaic cell?

A Protect against weather
B Convert solar energy to electricity
C Increase sunlight absorption
D Store solar energy