Question 41 : Which type of wind turbine has low RPM?
1. Small wind turbine
2. Large wind turbine
3. Medium wind turbine
4. Remote wind turbine
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Question 42 : Which type of generator are made use in wind turbines?
1. Recreational generators
2. Synchronous generator
3. Asynchronous generator
4. Alternator
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Question 43 : How much wind power does India hold?
1. 20,000 MW
2. 12,000 MW
3. 140,000 MW
4. 5000 MW
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Question 44 : When was the Darrieus type machine invented?
1. 1925
2. 1932
3. 1929
4. 1948
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Question 45 : Why is Savonius rotor not suitable for installation?
1. Because of long drive shaft
2. Because of its low capacity motor
3. Because of its typical blade design
4. Due to the light material it is made of
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Question 46 : What happens when the land near the earth's equator is heated?
1. All the oceans gets heated up
2. Small wind currents are formed
3. Rise in tides
4. Large atmospheric winds are created
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Question 47 : Which type of vertical wind machine has relatively low solidity and low starting torques?
1. Cup anemometer
2. Savonius rotor
3. Darrieus type rotor
4. Magnus effect rotor
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Question 48 : A rotor installed in a fixed orientation with the swept area perpendicular to the pre dominate wind direction is called ______
1. Nacelle
2. Yaw fixed machines
3. Blades
4. Anemometer
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Question 49 : What type of cross sections does wind turbine blades have?
1. Penta hedral cross section
2. Air foiled type cross section
3. Radar cross section
4. Turbo cross section
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Question 50 : Which part of the wind turbines senses wind speed, wind direction, shaft speed and torque?
1. Turbine blade
2. Shaft
3. Rotor
4. Controller
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