Steam Boilers, Engines, Nozzles and Turbines The diameter of superheated tubes in a locomotive boiler is 13 mm 130 mm 31 mm 230 mm 13 mm 130 mm 31 mm 230 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In recuperative air preheaters, the heat is transferred By direct mixing From heating an intermediate material and then heating the air from this material Heat is transferred by bleeding some gases from furnace From a metal wall from one medium to another By direct mixing From heating an intermediate material and then heating the air from this material Heat is transferred by bleeding some gases from furnace From a metal wall from one medium to another ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blades are equiangular Blade solidity is 0.65 Blades are equiangular and frictionless Blade velocity coefficient is unity Blades are equiangular Blade solidity is 0.65 Blades are equiangular and frictionless Blade velocity coefficient is unity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A regenerative steam cycle renders Decreased work output per unit mass of steam as well as increased thermal efficiency Increased thermal efficiency Increased work output per unit mass of steam Decreased work output per unit mass of steam Decreased work output per unit mass of steam as well as increased thermal efficiency Increased thermal efficiency Increased work output per unit mass of steam Decreased work output per unit mass of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The expansion of steam, as it flows over the blades in reaction turbine, represents Free expansion process Throttling process Isothermal process Isentropic process Free expansion process Throttling process Isothermal process Isentropic process ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as Equivalent evaporation Boiler efficiency Factor of evaporation Power of a boiler Equivalent evaporation Boiler efficiency Factor of evaporation Power of a boiler ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS