Windmill Questions

A windmill is defined as a machine that converts the kinetic energy of the wind into mechanical energy. The windmill is classified as:

• Vertical axis windmills
• Horizontal axis windmills

Various parts of the windmill are the anemometer, rotor, blades, and tower. The windmill is ideal for milling, oil extraction, and pumping groundwater.

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Important Windmill Questions with Answers

1. Windmill converts mechanical energy to _____ energy

1. Solar
2. Hydrothermal
3. Nuclear
4. Electrical

Answer: d) Electrical

Explanation: Electrical power is generated by the rotating windmill.

2. Choose YES or NO: Does wind power contribute to air pollution?

1. YES
2. NO

Answer: b) NO

Explanation: Wind power is the safest power source and does not contribute to polluting the environment.

3. Does the wind pattern affect the performance of the windmill?

Yes, the wind pattern and speed affect the functioning of the windmill.

4. Choose the right answer: Which type of windmill is omnidirectional.

1. Vertical axis windmills
2. Horizontal axis windmills

Answer: a) Vertical axis windmills

Explanation: Vertical axis windmills need no adjustment according to the wind to operate.

5. How are winds classified?

The wind is classified as primary wind, secondary wind, and tertiary wind.

6. Who designed the first windmill?

In 1854 the first windmill was designed by Daniel Halladay.

7. Usually, how many blades are ideal for a windmill?

1. 1
2. 2
3. 3
4. 6

Answer: c) 3

Explanation: Three blades work best in designing and functioning of the windmill.

8. Rotor in the windmill is also known as ______

1. Motor
2. Propeller
3. Blades
4. Tower

Answer: b) Propeller

Explanation: Rotor is also referred to as propeller.

9. ______ controls the functioning of rotor speed.

1. Anemometer
2. Propeller
3. Blades
4. Tower

Answer: c) Blades

Explanation: Blades control the functioning of rotor speed.

10. Which component measures the wind speed.

1. Voltameter
2. Galvanometer
3. Spectrometer
4. Anemometer

Answer: d) Anemometer

Explanation: Anemometer is an instrument that measures wind speed.

Practice Questions

1. What is wind?
2. What is meant by wind speed?
3. What is a windmill?
4. Define a vertical axis windmill.
5. Explain the horizontal-axis windmill.