Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is All of these To prepare heat balance sheet for the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler All of these To prepare heat balance sheet for the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the 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 None of these pa + ps ps - pa pa - ps None of these pa + ps ps - pa pa - ps ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The feed check valve is used in order to Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Recirculate unwanted feed water Check level of water in boiler drum Regulate flow of boiler water Allow high pressure feed water to flow to drum and not allow reverse flow to take place Recirculate unwanted feed water Check level of water in boiler drum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The flow through a nozzle is regarded as Constant pressure flow Isothermal flow Constant volume flow Isentropic flow Constant pressure flow Isothermal flow Constant volume flow Isentropic flow ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In designing air preheaters, the important design consideration is that Stack gases should not be cooled to the dew point Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Rateau turbine is Simple reaction turbine Pressure compounded turbine Velocity compounded turbine Pressure-velocity compounded turbine Simple reaction turbine Pressure compounded turbine Velocity compounded turbine Pressure-velocity compounded turbine ANSWER DOWNLOAD EXAMIANS APP
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