Steam Boilers, Engines, Nozzles and Turbines The change in internal energy in steam engines equals to Work done during the Rankine cycle Work done during adiabatic expansion Change in enthalpy Work done during compression Work done during the Rankine cycle Work done during adiabatic expansion Change in enthalpy Work done during compression ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as Externally fired boiler Internally fired boiler Natural circulation boiler Forced circulation boiler Externally fired boiler Internally fired boiler Natural circulation boiler Forced circulation boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of friction on the flow of steam through a nozzle is to 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 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 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum discharge through a chimney occurs when the height of chimney is Around 200 meters Outside temperature is very low Infinitely long Equal to the height of the hot gas column producing draught Around 200 meters Outside temperature is very low Infinitely long Equal to the height of the hot gas column producing draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The specific heat of superheated steam in kcal/kg is generally of the order of 0.8 0.1 0.5 0.3 0.8 0.1 0.5 0.3 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Proximate analysis of fuel is determination of percentage of Carbon, hydrogen, nitrogen, sulphur, moisture Higher calorific value Fixed carbon, ash, volatile matter, moisture Lower calorific value Carbon, hydrogen, nitrogen, sulphur, moisture Higher calorific value Fixed carbon, ash, volatile matter, moisture Lower calorific value ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS