Question Bank: Important Questions

Chapter 13

STEAM TURBINES

I. Answer the following:

1. With the help of a neat sketch, explain the principle of a single stage impulse turbine.

2. Sketch and explain a velocity compounding impulse turbine. Give the pressure velocity diagram.

3. Sketch and explain a pressure compounding impulse turbine. Give the pressure velocity diagram.

4. Explain the principle of reaction turbine. Explain the constructional features and working of Parson's reaction turbine.

5. Distinguish between impulse and reaction steam turbines.

II. Answer the following in one or two sentences:

1. How do you classify prime movers?

2. Define the terms: Impulse and Reaction.

3. Draw the pressure velocity diagram of a single stage impulse turbine.