Steam Boilers, Engines, Nozzles and Turbines A supercritical boiler is one that operates above the pressure and temperature of following values 218 kg/cm² abs and 540°C 218 kg/cm² abs and 373°C 1 kg/cm² and 100°C 100 kg/cm² and 540°C 218 kg/cm² abs and 540°C 218 kg/cm² abs and 373°C 1 kg/cm² and 100°C 100 kg/cm² and 540°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be 188 m/s 450 m/s 900 m/s 79 m/s 188 m/s 450 m/s 900 m/s 79 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At which pressure the properties of water and steam become identical 225.6 kg/cm² 0.1 kg/cm² 100 kg/cm² 1 kg/cm² 225.6 kg/cm² 0.1 kg/cm² 100 kg/cm² 1 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine when the degree of reaction is zero, then there is No heat drop in fixed blades No heat drop in moving blades Maximum heat drop in fixed blades Maximum heat drop in moving blades No heat drop in fixed blades No heat drop in moving blades Maximum heat drop in fixed blades Maximum heat drop in moving blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as Power of the boiler Efficiency of the boiler Efficiency of the chimney Efficiency of the fan Power of the boiler Efficiency of the boiler Efficiency of the chimney Efficiency of the fan ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Incomplete combustion can be best judged by Smoky chimney exit Measuring carbon monoxide in flue gases Measuring temperature of flue gases at exit of furnace Excess air in flue gases Smoky chimney exit Measuring carbon monoxide in flue gases Measuring temperature of flue gases at exit of furnace Excess air in flue gases ANSWER DOWNLOAD EXAMIANS APP
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