I. Steam turbine is the cheapest and most easily available fuel burning plant for high power production purpose. It is in a highly develotied stage after Ion~ experience and has higher efficiency than that of the gas turbine plant. 2. Steam turbine, due to higher heating surfaces required, is bulkier than a gas turbine plant. This, though, is not very important for stationary plants but is highly critical for mobile power plants. 3. Due to low pressures used in gas turbine plants specific power based on volume basis is lower than that for steam plants. 4. Little or no cooling is required in gas turbine plants where- as a large amount of cooling is required in a steam plant. This makes the ga5 turbine highly suitable for rail road transportation and aircraft propulsion. Closed cycle plants need about 10 to 20 per cent of the cooling water need~d for steam plants. 5. Usually gas turbines run at a higher speed and the blades are also twisted as compared to steam turbine blades. 6. A gas turbine plant can be rapidly started a>1d stopped as compared to a steam plant. Thus it is highly suitable for peak load purposes. 7. Due to the absence of components such as condenser, feed water treatment device, etc., the aµx:iliary equipment is small for a gas turbine. Thus a gas turbine plant requires less maintenance and is simpler to operate. 8. Manpower required to operate gas turbine plant is much less than for a steam turbine plant. The control is easier and quicker to adopt to variations in load.