Wind Energy (Unit-1_Introduction)

Which of the following are renewable energy resource?

• Solar
• Wind
• Geothermal
• All of the above

Which of the area can often displaces conventional fuel by renewable energy?

• Space Heating
• Transportation
• Electricity Generation
• All of the above

Photovoltaic cell converts solar energy into

• Heat energy
• Electric energy
• Mechanical energy
• Chemical energy

Concentrated solar power (CSP) systems use ____ to focus a large area of sunlight into a small beam.

• Lens
• Mirrors
• Trackers
• All of the above

What is a disadvantage of renewable energy?

• High pollution
• Region specific availability
• High running cost
• Unreliable supply

A Solar cell is an electrical device that converts the energy of light directly into electricity by the ____________

• Photovoltaic effect
• Chemical effect
• Atmspheric effect
• Physical effect

What does heating and cooling of the atmosphere generates?

• Conduction currents
• Radiation currents
• Convection currents
• All of the above

What is the estimated wind energy available over the earth surface?

• 2.9 X 120 MW
• 1.6 X 107 MW
• 1 MW
• 5 MW

What is the main source of wind?

• Uneven land
• Sun
• Vegetation
• Seasons

Wind energy is converted into electrical energy with the use of

• Turbines
• Generators
• Motors
• Blades