Steam Boilers, Engines, Nozzles and Turbines Steam turbines may be classified according to Direction of steam flow Mode of steam action Number of stages All of these Direction of steam flow Mode of steam action Number of stages All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The equivalent evaporation of a boiler is a measure to compare The given boiler with the model Two different makes of boilers operating under the same operating conditions The two different boilers of the same make Any type of boilers operating under any conditions The given boiler with the model Two different makes of boilers operating under the same operating conditions The two different boilers of the same make Any type of boilers operating under any conditions ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of 20 : 48 : 7 : 15 : 10 7 : 15 : 20 : 10 : 48 48 : 20 : 15 : 7 : 10 10 : 7 : 15 : 20 : 48 20 : 48 : 7 : 15 : 10 7 : 15 : 20 : 10 : 48 48 : 20 : 15 : 7 : 10 10 : 7 : 15 : 20 : 48 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Heating value of fuel used is as on fired basis. If it is reported for dry or moisture free fuel, then latter should be multiplied by the following factor to correct for as fired value (1- moisture content) 1 – moisture content (1 + moisture content) 1 + moisture content (1- moisture content) 1 – moisture content (1 + moisture content) 1 + moisture content ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The missing quantity per stroke is equal to Mass of cushion steam + indicated mass of steam Mass of cushion steam + cylinder feed Cylinder feed indicated mass of steam Cylinder feed + indicated mass of steam Mass of cushion steam + indicated mass of steam Mass of cushion steam + cylinder feed Cylinder feed indicated mass of steam Cylinder feed + indicated mass of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A boiler in India should conform to safety regulations of ASTM IBR BS DIN ASTM IBR BS DIN ANSWER DOWNLOAD EXAMIANS APP