Steam Boilers, Engines, Nozzles and Turbines A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine is known as Steam boiler Steam condenser Steam preheater Economiser Steam boiler Steam condenser Steam preheater Economiser ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is used where working pressure and power required are Low High None of these Moderate Low High None of these Moderate ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The expansion of steam, as it flows over the blades in reaction turbine, represents Throttling process Free expansion process Isothermal process Isentropic process Throttling process Free expansion process Isothermal process Isentropic process 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 Handling and maintenance should be easier Heat transfer area should be optimum Stack gases should not be cooled to the dew point Approach temperature should be as low as possible Handling and maintenance should be easier Heat transfer area should be optimum ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be Choked Over-damping None of these Under-damping Choked Over-damping None of these Under-damping ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diagram factor is the ratio of the Area of the actual indicator diagram to the area of theoretical indicator diagram Actual workdone per stroke to the theoretical workdone per stroke Any one of the above Actual mean effective pressure to the theoretical mean effective pressure Area of the actual indicator diagram to the area of theoretical indicator diagram Actual workdone per stroke to the theoretical workdone per stroke Any one of the above Actual mean effective pressure to the theoretical mean effective pressure ANSWER DOWNLOAD EXAMIANS APP
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