Steam Boilers, Engines, Nozzles and Turbines Reheating of steam in a turbine Increases the efficiency of the turbine All of these Increases the work-done through the turbine Reduces wear on the blades Increases the efficiency of the turbine All of these Increases the work-done through the turbine Reduces wear on the blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor) pa = pm + K pa = K/pm pa = pm × K pa = pm/K pa = pm + K pa = K/pm pa = pm × K pa = pm/K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The power of a boiler may be defined as The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100° C into dry and saturated steam The amount of water evaporated or steam produced in kg per kg of fuel burnt The evaporation of 15.653 kg of water per hour from and at 100° C The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100° C into dry and saturated steam The amount of water evaporated or steam produced in kg per kg of fuel burnt The evaporation of 15.653 kg of water per hour from and at 100° C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are those in which Water passes through the tubes and flue gases around it Flue gases pass through tubes and water around it Forced circulation takes place Tubes are laid vertically Water passes through the tubes and flue gases around it Flue gases pass through tubes and water around it Forced circulation takes place Tubes are laid vertically ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler H.P. is defined as the Work done by 1 kg of steam at saturation condition Steam evaporation rate per kg of fuel fired 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 Work done by 1 kg of steam at saturation condition Steam evaporation rate per kg of fuel fired 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 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder. None of the listed here Less than More than Equal to None of the listed here Less than More than Equal to ANSWER DOWNLOAD EXAMIANS APP
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