Steam Boilers, Engines, Nozzles and Turbines A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be 450 m/s 79 m/s 900 m/s 188 m/s 450 m/s 79 m/s 900 m/s 188 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of super-saturation is that the Mass of the steam discharged increases Exit velocity of steam reduces All of these Entropy and specific volume of the steam increases Mass of the steam discharged increases Exit velocity of steam reduces All of these Entropy and specific volume of the steam increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of whirl at outlet for an axial discharge turbine is None of these Maximum Minimum Zero None of these Maximum Minimum Zero ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Orsat meter is used for Gravimetric analysis of the flue gases Mass flow of the flue gases Measuring smoke density of flue gases Volumetric analysis of the flue gases Gravimetric analysis of the flue gases Mass flow of the flue gases Measuring smoke density of flue gases Volumetric analysis of the flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of the heat liberated in the furnace to the heat actually used in producing steam Ratio of heat actually used in producing steam to the heat liberated in the furnace None of these Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of the heat liberated in the furnace to the heat actually used in producing steam Ratio of heat actually used in producing steam to the heat liberated in the furnace None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The purpose of governing in steam turbines is to Reduce the effective heat drop Maintain the speed of the turbine Completely balance against end thrust Reheat the steam and improve its quality Reduce the effective heat drop Maintain the speed of the turbine Completely balance against end thrust Reheat the steam and improve its quality ANSWER DOWNLOAD EXAMIANS APP
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