Steam Boilers, Engines, Nozzles and Turbines The basic job of feed water treatment in boilers is to overcome the problem of Corrosion All of these Carryover Scale Corrosion All of these Carryover Scale ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 640 m/s 320/3 m/s 640/3 m/s 160/3 m/s 640 m/s 320/3 m/s 640/3 m/s 160/3 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines De-Laval turbine is a Impulse-reaction turbine None of these Simple reaction turbine Simple impulse turbine Impulse-reaction turbine None of these Simple reaction turbine Simple impulse turbine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The evaporation of 15.653 kg of water per hour from and at 100°C is called Equivalent evaporation One boiler h.p. Factor of evaporation Evaporative capacity Equivalent evaporation One boiler h.p. Factor of evaporation Evaporative capacity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio is given by (where p₁ = Initial pressure of steam, and p₂ = Pressure of steam at throat or critical pressure) p₁ + p₂ p₂/p₁ p₁/p₂ p₁. p₂ p₁ + p₂ p₂/p₁ p₁/p₂ p₁. p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler parameters are expressed by All of these Temperature of steam in °C Tonnes/hr. of steam Pressure of steam in kg/cm² All of these Temperature of steam in °C Tonnes/hr. of steam Pressure of steam in kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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