Steam Boilers, Engines, Nozzles and Turbines The ratio of total useful heat drop to the total isentropic heat drop, is called Stage efficiency Rankine efficiency None of these Internal efficiency Stage efficiency Rankine efficiency None of these Internal efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines During polytropic process Steam may be wet, dry or superheated after expansion Work is done All of these Heat transfer takes place across cylinder walls Steam may be wet, dry or superheated after expansion Work is done All of these Heat transfer takes place across cylinder walls ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In water wall furnace, the heat is transferred to the water walls by Convection Conduction Radiation and conduction Radiation Convection Conduction Radiation and conduction Radiation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of the plant __________ with the mechanical draught. Increases Decreases None of these Remains constant Increases Decreases None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The change in internal energy in steam engines equals to Work done during compression 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 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about pulverized fuel firing? Fuel burns economically Heat release can be easily controlled It is the best technique for burning high ash content fuel having low fusion ash High burning rate is possible Fuel burns economically Heat release can be easily controlled It is the best technique for burning high ash content fuel having low fusion ash High burning rate is possible ANSWER DOWNLOAD EXAMIANS APP
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