Steam Boilers, Engines, Nozzles and Turbines Gusset stays in a boiler are provided to Prevent leakage of hot flue gases Support furnace freely from top Prevent the bulging of flat surfaces Avoid explosion in furnace Prevent leakage of hot flue gases Support furnace freely from top Prevent the bulging of flat surfaces Avoid explosion in furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor depends upon Initial pressure and superheat Turbine stage efficiency Exit pressure All of these Initial pressure and superheat Turbine stage efficiency Exit pressure All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than Atmospheric pressure 5 kg/cm² 7580 kg/cm² 10 kg/cm² Atmospheric pressure 5 kg/cm² 7580 kg/cm² 10 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a boiler, the heat is lost In moisture present in the fuel All of these To steam formed by combustion of hydrogen per kg of fuel To dry flue gases In moisture present in the fuel All of these To steam formed by combustion of hydrogen per kg of fuel To dry flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle) V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Spontaneous combustion is a phenomenon in which Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal All the fuel burns instantaneously producing high energy release Fuel burns with less air Explosion in furnace Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal All the fuel burns instantaneously producing high energy release Fuel burns with less air Explosion in furnace ANSWER DOWNLOAD EXAMIANS APP
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