Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at 950-1100°C Atmospheric temperature 500-600°C 700-850°C 950-1100°C Atmospheric temperature 500-600°C 700-850°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is 0.067 bar 0.053 bar 0.06 bar 0.007 bar 0.067 bar 0.053 bar 0.06 bar 0.007 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The compounding of turbines is done in order to Reduce speed of rotor All of these Reduce exit losses Improve efficiency Reduce speed of rotor All of these Reduce exit losses Improve efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine The steam is expanded from a high pressure to a condenser pressure in one or more nozzles The pressure and temperature of steam remains constant The expansion of steam takes place partly in the fixed blades and partly in the moving blades The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades The steam is expanded from a high pressure to a condenser pressure in one or more nozzles The pressure and temperature of steam remains constant The expansion of steam takes place partly in the fixed blades and partly in the moving blades The steam is allowed to expand in the nozzle, where it gives a high velocity before it enters the moving blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At very low temperature, the melting and boiling temperatures become equal. This temperature is 373°K 0°K 303°K 273.16°K 373°K 0°K 303°K 273.16°K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called Gross or stage efficiency Nozzle efficiency Blading efficiency Mechanical efficiency Gross or stage efficiency Nozzle efficiency Blading efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
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