Which of the following types of turbine uses the rotor system shown in the figure?

Explanation:

Turbine is a device or machine that converts the kinetic energy of a fluid to mechanical energy. There are different types of turbines that are,

Impulse Turbine: 

If at the inlet of the turbine, the energy available is only kinetic energy, the turbine is known as impulse turbine.

Example: Pelton wheel turbine.

Pelton Wheel Turbine:

It is a tangential flow impulse turbine in which the pressure energy of water is converted into kinetic energy to form a high-speed water jet and this jet strikes the wheel tangentially to make it rotate.

• Pelton turbines with either vertical or horizontal shaft are intended for use of water energy at the very high head (up to 1500 m) and relatively low discharge. 
• Pelton turbine is an impulse machine that transforms the potential energy of water into kinetic energy in a form of a water jet, which impacts and drives a Pelton runner.

The Main parts of the Pelton Wheel Turbine are:

1. Nozzle and Flow Regulating Arrangement
2. Runner and Buckets
3. Casting
4. Braking Jet
5. Penstock