Steam Boilers, Engines, Nozzles and Turbines The performance of a boiler is measured by the All of the listed here Amount of water evaporated per hour Steam produced in kg/h Steam produced in kg/kg of fuel burnt All of the listed here Amount of water evaporated per hour Steam produced in kg/h Steam produced in kg/kg of fuel burnt ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines During polytropic process Work is done Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls All of these Work is done Steam may be wet, dry or superheated after expansion Heat transfer takes place across cylinder walls All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An air preheater is installed None of these Before the economiser Before the superheater Between the economiser and chimney None of these Before the economiser Before the superheater Between the economiser and chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The equivalent evaporation is defined as The evaporation of 15.653 kg of water per hour from and at 100°C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100°C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100°C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100°C into dry and saturated steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Duplex feed pumps are used in small steam boilers. These operate on the principle of Reciprocating pump Centrifugal pump Axial flow pump Gear pump Reciprocating pump Centrifugal pump Axial flow pump Gear pump ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of Lancashire boiler varies from 7.25 to 9 m 5 to 6 m 9 to 10 m 6 to 7 m 7.25 to 9 m 5 to 6 m 9 to 10 m 6 to 7 m ANSWER DOWNLOAD EXAMIANS APP