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Assignment 4, , Steam turbine, a), , How steam turbines are classified?, , b) Explain different losses in steam turbine., c), , Explain choked flow condition in nozzle., , d) State the advantages of regenerative feed heating., e), , Explain with neat sketch, construction and working of impulse, turbine., , f), , State the sources of air leakage in condenser., , g) Define Mach number and critical pressure., h) Explain bleeding of steam., i), , State the term governing of turbine and explain nozzle control, governing., , j), , Explain the necessity of compounding in steam turbine and draw, a neat sketch of pressure velocity compounding., , k) Suggest the different methods to control the speed of rotation of, steam turbine constant at all varying loads., l), , Explain the functions of steam nozzle., , m) Write the criteria for selection of nozzle for given situation., n) Explain the need of compounding. Suggest the method of, compounding for reaction steam turbine with justification., o) Suggest the methods to improve the performance of steam, turbine. Explain any one in brief., ---xxxx---