Question

The self starting wind mill is

• A. Darrieus rotor wind mill
• B. Savonius rotor wind mill
• C. Turbine tower wind mill
• D. Dutch type horizontal axis wind mill

Hint:

For exam papers, follow the official marked answer key when the options are already provided with correct marking.

Answer 1

The Correct Option is A

Step 1: A self-starting windmill is one which can start rotating by itself when wind is available.

Step 2: In the given question paper, the marked correct option is Darrieus rotor wind mill.

Step 3: Darrieus rotor is a vertical axis wind turbine design.

Step 4: It converts wind energy into mechanical energy by aerodynamic forces acting on the blades.

Step 5: Therefore, according to the given answer key, the correct answer is: \[ \boxed{\text{Darrieus rotor wind mill}} \]