Steam Boilers, Engines, Nozzles and Turbines The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle) Decreases Increases None of these Remains constant Decreases Increases None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The difference of supersaturated temperature and saturation temperature at that pressure is called Degree of superheat Degree of super-saturation None of the listed here Degree of under-cooling Degree of superheat Degree of super-saturation None of the listed here Degree of under-cooling ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used to increase the temperature of saturated steam without raising its pressure, is called Fusible plug Superheater Stop valve Blow off cock Fusible plug Superheater Stop valve Blow off cock ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of 48 : 20 : 15 : 7 : 10 7 : 15 : 20 : 10 : 48 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 48 : 20 : 15 : 7 : 10 7 : 15 : 20 : 10 : 48 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be Over-damping Under-damping Choked None of these Over-damping Under-damping Choked None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of friction on the flow of steam through a nozzle is to Decrease the mass flow rate and to decrease the wetness of steam Increase the exit temperature without any effect on mass flow rate Decrease the mass flow rate and to increase the wetness of steam Increase the mass flow rate and to increase the exit temperature Decrease the mass flow rate and to decrease the wetness of steam Increase the exit temperature without any effect on mass flow rate Decrease the mass flow rate and to increase the wetness of steam Increase the mass flow rate and to increase the exit temperature ANSWER DOWNLOAD EXAMIANS APP
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