Wind Energy

What does Heating and cooling of the atmosphere generates?

• Thermo line circulation

• Radiation currents

• Convection currents

• Conduction currents

   

How much is the energy available in the winds over the earth surface is estimated to be?

• 2.9 X 120 MW

• 1.6 X 107 MW

• 1 MW

• 5 MW

What is the main source for the formation of wind?

• Uneven land

• Sun

• Vegetation

• Seasons

“During the day, the air above the land heats up more quickly than the air over water”.

• True

• False

What are used to turn wind energy into electrical energy?

• Turbine

• Generators

• Yaw motor

• Blades

At what range of speed is the electricity from the wind turbine is generated?

• 100 – 125 mph

• 450 – 650 mph

• 250 – 450 mph

• 30-35 mph

Which of the following is a reason for variable wind speed?

• Water

• Earth’s rotation

• Electrons

• Fans

The amount of energy available in the wind at any instant is proportional to (a)   of the wind speed.

The following is (are) the classification of winds

• Global wind

• Local wind

• Both (a) and (b)

• None of the above

Global Cold wind move from

• Polar to equatorial region

• Equatorial to polar region

• Equatorial to oceanic region

• Oceanic to Equatorial region