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 Natural circulation boiler Forced circulation boiler Internally fired boiler Externally fired boiler Natural circulation boiler Forced circulation boiler Internally fired boiler Externally fired boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines If partial pressure of air and steam be ‘pa’ and ‘ps’ respectively in a condenser, then according to Dalton's law, the pressure in condenser is equal to pa - ps None of these pa + ps ps - pa pa - ps None of these pa + ps ps - pa ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The height of chimney in a power plant is governed by Quantity of flue gases to be handled Control of pollution Limitation of construction facilities The draft to be created Quantity of flue gases to be handled Control of pollution Limitation of construction facilities The draft to be created ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The principal function of a stop valve is to Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Increase the temperature of saturated steam without raising its pressure Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Increase the temperature of saturated steam without raising its pressure Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the fixed blades, Pressure decreases while velocity increases Pressure and velocity both increases Pressure increases while velocity decreases Pressure and velocity both decreases Pressure decreases while velocity increases Pressure and velocity both increases Pressure increases while velocity decreases Pressure and velocity both decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The amount of water evaporated from feed water at _________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C. 40°C 0°C 60°C 100°C 40°C 0°C 60°C 100°C ANSWER DOWNLOAD EXAMIANS APP
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