Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for steam turbines as compared to reciprocating steam engines? The efficiency of steam turbine is higher A steam turbine develops higher speeds The steam consumption is less All of these The efficiency of steam turbine is higher A steam turbine develops higher speeds The steam consumption is less All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Willian’s line follows the law (where b = A constant representing the shape of the Willian’s line, a = Another constant i.e. no load consumption per hour, I.P. = Indicated power, and m = Steam consumption per hour) I.P. = b × m + a m = (b/I.P.) - a I.P. = a × m + b m = a + b × I.P. I.P. = b × m + a m = (b/I.P.) - a I.P. = a × m + b m = a + b × I.P. ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Pulverized fuel is used for Less radiation loss Better burning Medium sized units More calorific value Less radiation loss Better burning Medium sized units More calorific value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be 0.67 1.67 0.4 0.56 0.67 1.67 0.4 0.56 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In designing air preheaters, the important design consideration is that 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 Stack gases should not be cooled to the dew point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than 10 kg/cm² Atmospheric pressure 7580 kg/cm² 5 kg/cm² 10 kg/cm² Atmospheric pressure 7580 kg/cm² 5 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS