Steam Boilers, Engines, Nozzles and Turbines During polytropic process Work is done Heat transfer takes place across cylinder walls All of these Steam may be wet, dry or superheated after expansion Work is done Heat transfer takes place across cylinder walls All of these Steam may be wet, dry or superheated after expansion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The Parsons' reaction turbine has Fixed and moving blades of different shape Only moving blades Only fixed blades Identical fixed and moving blades Fixed and moving blades of different shape Only moving blades Only fixed blades Identical fixed and moving blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The equivalent evaporation of a boiler is a measure to compare The given boiler with the model Two different makes of boilers operating under the same operating conditions Any type of boilers operating under any conditions The two different boilers of the same make The given boiler with the model Two different makes of boilers operating under the same operating conditions Any type of boilers operating under any conditions The two different boilers of the same make ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler Remain unaffected Increases First increases and then decreases Decreases Remain unaffected Increases First increases and then decreases Decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are limited to a maximum working pressure of 17 MN/m² 1.7 MN/m² 170 MN/m² 0.17 MN/m² 17 MN/m² 1.7 MN/m² 170 MN/m² 0.17 MN/m² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as Injector Feed pump Feed check valve Pressure gauge Injector Feed pump Feed check valve Pressure gauge ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS