Contents

Why wind is used to produce electrical energy?
a) it carries light   

b) it propagates sound
c) it has energy                   

d) none of these

c

A wind turbine converts ………energy into electricity
a) heat                                  

b) kinetic
c) thermal energy                

d) solar energy

b

To change ………energy to electricity, wind should turn the rotor blades which need to spin the turbine.
a) heat  

b) sound                               

c) sun    

d) wind

d

Which of the following is fitted inside the turbine that supplies an electrical output?
a) concave mirror               

b) electric generator
c) magnet                                             

d) all of these

b

A wind turbine is connected to the …….and its movement generates electricity.
a) machine                                           

b) mirror
c) motor                                               

d) none of these

c

Which of the following is used to measure how much electricity is produced by wind turbine generator?
a) ammeter                          

b) voltmeter
c) thermometer                   

d) meter ruler

b

Explanation:A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. It is connected in parallel. It usually has a high resistance so that it takes negligible current from the circuit.