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 The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blades are equiangular Blades are equiangular and frictionless Blade velocity coefficient is unity Blade solidity is 0.65 Blades are equiangular Blades are equiangular and frictionless Blade velocity coefficient is unity Blade solidity is 0.65 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of super-saturation is that the All of these Mass of the steam discharged increases Exit velocity of steam reduces Entropy and specific volume of the steam increases All of these Mass of the steam discharged increases Exit velocity of steam reduces Entropy and specific volume of the steam increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The numbers of fire tubes in a Cochran boiler are 165 75 115 225 165 75 115 225 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Pulverized fuel is used for Less radiation loss Medium sized units Better burning More calorific value Less radiation loss Medium sized units Better burning More calorific value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines On Mollier chart, flow through turbine is represented by Vertical straight line Curved line Horizontal straight line Straight inclined line Vertical straight line Curved line Horizontal straight line Straight inclined line ANSWER DOWNLOAD EXAMIANS APP
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