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 Air-preheater Injector Superheater Economizer Air-preheater Injector Superheater Economizer ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water and sediment in fuel oil can be removed by Heating the oil in the settling tanks Suspension Burning the oil Cooling the oil in the settling tanks Heating the oil in the settling tanks Suspension Burning the oil Cooling the oil in the settling tanks ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The amount of water evaporated in kg per kg of fuel burnt is called Evaporative capacity of a boiler Equivalent evaporation from and at 100° C None of these Boiler efficiency Evaporative capacity of a boiler Equivalent evaporation from and at 100° C None of these Boiler efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A steam nozzle converts Heat energy of steam into kinetic energy Potential energy into heat energy of steam Heat energy of steam into potential energy Kinetic energy into heat energy of steam Heat energy of steam into kinetic energy Potential energy into heat energy of steam Heat energy of steam into potential energy Kinetic energy into heat energy of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Latent heat of dry steam at atmospheric pressure is equal to 427 kcal/ kg 539 kcal/ kg 539 BTU/ lb 100 kcal/ kg 427 kcal/ kg 539 kcal/ kg 539 BTU/ lb 100 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Caking coals are those which Form lumps or masses of coke Show little or no fusing action Burn completely Burn freely Form lumps or masses of coke Show little or no fusing action Burn completely Burn freely ANSWER DOWNLOAD EXAMIANS APP
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