Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is To determine the thermal efficiency of the boiler when working at a definite pressure To prepare heat balance sheet for the boiler All of these To determine the generating capacity of the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To prepare heat balance sheet for the boiler All of these To determine the generating capacity of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In locomotives, the draught is produced by Both combined (A) and (B) Induced draft fan Chimney Steam jet draught Both combined (A) and (B) Induced draft fan Chimney Steam jet draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The principal function of a stop valve is to 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 Control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an impulse reaction turbine, the pressure drops gradually and continuously over Fixed blades Both fixed and moving blades Moving blades None of these Fixed blades Both fixed and moving blades Moving blades None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The temperature of flue gases at air heater outlet should be 100°C Less than wet bulb temperature of flue gases Above dew point temperature of flue gases Below dew point temperature of flue gases 100°C Less than wet bulb temperature of flue gases Above dew point temperature of flue gases Below dew point temperature of flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Over fire burning is the phenomenon of Fuel bed firing Supply of excess, air Supply of excess coal Burning CO and unburnt in upper zone of furnace by supplying more air Fuel bed firing Supply of excess, air Supply of excess coal Burning CO and unburnt in upper zone of furnace by supplying more air ANSWER DOWNLOAD EXAMIANS APP
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