Steam Boilers, Engines, Nozzles and Turbines The crown of the fire box is made hemispherical in order to Give maximum space Give maximum strength Withstand pressure inside boiler Resist intense heat in fire box Give maximum space Give maximum strength Withstand pressure inside boiler Resist intense heat in fire box ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In water wall furnace, the heat is transferred to the water walls by Conduction Convection Radiation and conduction Radiation Conduction Convection Radiation and conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser in a boiler Increases steam flow Decreases fuel consumption Increases steam pressure Decreases steam pressure Increases steam flow Decreases fuel consumption Increases steam pressure Decreases steam pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Equivalent evaporation is the amount of water evaporated in a boiler from and at Room temperature Saturation temperature at given pressure 0°C 100°C Room temperature Saturation temperature at given pressure 0°C 100°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Over fire burning is the phenomenon of Supply of excess, air Burning CO and unburnt in upper zone of furnace by supplying more air Fuel bed firing Supply of excess coal Supply of excess, air Burning CO and unburnt in upper zone of furnace by supplying more air Fuel bed firing Supply of excess coal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure at which latent heat of vaporisation of water is zero, is 225.6 kg/cm² Below atmospheric pressure 1 kg/cm² 100 kg/cm² 225.6 kg/cm² Below atmospheric pressure 1 kg/cm² 100 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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