Steam Boilers, Engines, Nozzles and Turbines The crown of the fire box is made hemispherical in order to Withstand pressure inside boiler Give maximum strength Resist intense heat in fire box Give maximum space Withstand pressure inside boiler Give maximum strength Resist intense heat in fire box Give maximum space ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called Chimney draught Induced steam jet draught None of these Forced steam jet draught Chimney draught Induced steam jet draught None of these Forced steam jet draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of 7 : 15 : 20 : 10 : 48 48 : 20 : 15 : 7 : 10 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 7 : 15 : 20 : 10 : 48 48 : 20 : 15 : 7 : 10 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of superheated tubes in a locomotive boiler is 130 mm 31 mm 230 mm 13 mm 130 mm 31 mm 230 mm 13 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Equivalent evaporation of water is the evaporation for a feed water supply at 100°C Conversion into steam at atmospheric condition Conversion into steam at the same pressure at which feed water is supplied And its corresponding conversion into dry steam at desired boiler pressure And its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm² Conversion into steam at atmospheric condition Conversion into steam at the same pressure at which feed water is supplied And its corresponding conversion into dry steam at desired boiler pressure And its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The density of supersaturated steam is about __________ that of the ordinary saturated vapor at the corresponding pressure. Same as 8 times 2 times 4 times Same as 8 times 2 times 4 times ANSWER DOWNLOAD EXAMIANS APP
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