Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Extract heat from the exhaust flue gases Increase flue gas temperature Economize on fuel Increase thermal efficiency of boiler Extract heat from the exhaust flue gases Increase flue gas temperature Economize on fuel Increase thermal efficiency of boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which device is used in thermal power plants to reduce level of pollution? Chimney Precipitator Induced draft fan Smoke meter Chimney Precipitator Induced draft fan Smoke meter ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines O₂ content in atmospheric air on volume basis is 0.4 0.21 0.23 0.3 0.4 0.21 0.23 0.3 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The principal function of a stop valve is to Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Increase the temperature of saturated steam without raising its pressure 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 Put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit Increase the temperature of saturated steam without raising its pressure Empty the boiler when required and to discharge the mud, scale or sediments which are accumulated at the bottom of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of the plant __________ with the mechanical draught. Increases Remains constant Decreases None of these Increases Remains constant Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The variation of steam pressure in the nozzle depends upon All of these Specific volume of steam Velocity of steam Dryness fraction of steam All of these Specific volume of steam Velocity of steam Dryness fraction of steam ANSWER DOWNLOAD EXAMIANS APP
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