Steam Boilers, Engines, Nozzles and Turbines The expansion of steam, as it flows over the blades in reaction turbine, represents Isothermal process Isentropic process Free expansion process Throttling process Isothermal process Isentropic process Free expansion process Throttling process ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 160/3 m/s 320/3 m/s 640/3 m/s 640 m/s 160/3 m/s 320/3 m/s 640/3 m/s 640 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high steam and low water safety valve is used to blow off steam when the None of these Water level in the boiler becomes too low Both (A) and (B) Steam pressure exceeds the working pressure None of these Water level in the boiler becomes too low Both (A) and (B) Steam pressure exceeds the working pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Thermal efficiency of a thermal power plant is of the order of 0.3 0.45 0.15 0.2 0.3 0.45 0.15 0.2 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Coke is produced by Heating wood in a limited supply of air at temperatures below 300°C Pulverizing coal in inert atmosphere Enriching carbon in the coal Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel Heating wood in a limited supply of air at temperatures below 300°C Pulverizing coal in inert atmosphere Enriching carbon in the coal Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum steam pressure in a Locomotive boiler is limited to 1.8 MN/m² 0.18 MN/m² 180 MN/m² 18 MN/m² 1.8 MN/m² 0.18 MN/m² 180 MN/m² 18 MN/m² ANSWER DOWNLOAD EXAMIANS APP
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