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 increase the wetness of steam Decrease the mass flow rate and to decrease the wetness of steam Increase the mass flow rate and to increase the exit temperature Increase the exit temperature without any effect on mass flow rate Decrease the mass flow rate and to increase the wetness of steam Decrease the mass flow rate and to decrease the wetness of steam Increase the mass flow rate and to increase the exit temperature Increase the exit temperature without any effect on mass flow rate ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of fire tube of Cornish boiler compared to its shell is One third One fifth One fourth One half One third One fifth One fourth One half ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in a Cochran boiler usually have _________ diameter. 62.5 mm 72.5 mm 92.5 mm 6.25 mm 62.5 mm 72.5 mm 92.5 mm 6.25 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The aim of a compound steam engine is All of these To reduce the temperature range in each cylinder To reduce the ratio of expansion in each cylinder To reduce the length of stroke All of these To reduce the temperature range in each cylinder To reduce the ratio of expansion in each cylinder To reduce the length of stroke ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of steam turbines may be improved by Reheating of steam Any one of these Regenerative feed heating Binary vapor plant Reheating of steam Any one of these Regenerative feed heating Binary vapor plant 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 320/3 m/s 640 m/s 640/3 m/s 160/3 m/s 320/3 m/s 640 m/s 640/3 m/s 160/3 m/s ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS