Steam Boilers, Engines, Nozzles and Turbines For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine. Three times Equal to Twice Four times Three times Equal to Twice Four times ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The crown of the fire box is made hemispherical in order to Give maximum strength Withstand pressure inside boiler Resist intense heat in fire box Give maximum space Give maximum strength Withstand pressure inside boiler Resist intense heat in fire box Give maximum space ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor depends upon Turbine stage efficiency All of these Exit pressure Initial pressure and superheat Turbine stage efficiency All of these Exit pressure Initial pressure and superheat ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The equivalent evaporation is defined as The amount of water evaporated from and at 100°C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100°C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100°C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100°C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p₂) will be 5.46 bar 3.3 bar 9.9 bar 8.2 bar 5.46 bar 3.3 bar 9.9 bar 8.2 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are None of these Internally as well as externally fired Internally fired Externally fired None of these Internally as well as externally fired Internally fired Externally fired ANSWER DOWNLOAD EXAMIANS APP
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