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 Superheater Economizer Injector Air-preheater Superheater Economizer Injector Air-preheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At very low temperature, the melting and boiling temperatures become equal. This temperature is 0°K 303°K 273.16°K 373°K 0°K 303°K 273.16°K 373°K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Reheating of steam in a turbine Increases the efficiency of the turbine Increases the work-done through the turbine Reduces wear on the blades All of these Increases the efficiency of the turbine Increases the work-done through the turbine Reduces wear on the blades All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of shell of a Locomotive boiler is 3 m 2 m 4 m 1 m 3 m 2 m 4 m 1 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Vacuum for reciprocating steam engines compared to steam turbines is Could be more or less depending on the size of plant More Equal Less Could be more or less depending on the size of plant More Equal Less ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of total useful heat drop to the total isentropic heat drop, is called Internal efficiency None of these Stage efficiency Rankine efficiency Internal efficiency None of these Stage efficiency Rankine efficiency ANSWER DOWNLOAD EXAMIANS APP
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