Steam Boilers, Engines, Nozzles and Turbines A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as Injector Economizer Air-preheater Superheater Injector Economizer Air-preheater Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure at which latent heat of vaporisation of water is zero, is 1 kg/cm² Below atmospheric pressure 100 kg/cm² 225.6 kg/cm² 1 kg/cm² Below atmospheric pressure 100 kg/cm² 225.6 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of the plant __________ with the mechanical draught. None of these Remains constant Decreases Increases None of these Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler H.P. is defined as the The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam Steam evaporation rate per kg of fuel fired Work done by 1 kg of steam at saturation condition Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam Steam evaporation rate per kg of fuel fired Work done by 1 kg of steam at saturation condition Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as Ratio of heat actually used in producing steam to the heat liberated in the furnace Ratio of the heat liberated in the furnace to the heat actually used in producing steam None of these Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of heat actually used in producing steam to the heat liberated in the furnace Ratio of the heat liberated in the furnace to the heat actually used in producing steam None of these Ratio of the mass of steam produced to the mass of total water supplied in a given time ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum steam pressure in a Locomotive boiler is limited to 0.18 MN/m² 1.8 MN/m² 18 MN/m² 180 MN/m² 0.18 MN/m² 1.8 MN/m² 18 MN/m² 180 MN/m² ANSWER DOWNLOAD EXAMIANS APP
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