Steam Boilers, Engines, Nozzles and Turbines The chimney draught varies with Climatic conditions Temperature of furnace gases Height of chimney All of these Climatic conditions Temperature of furnace gases Height of chimney All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of heat utilized to produce steam and the heat liberated in furnace is known as Factor of evaporation Boiler evaporative capacity Boiler efficiency Boiler effectiveness Factor of evaporation Boiler evaporative capacity Boiler efficiency Boiler effectiveness ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is (1 + cos²α)/2 cos²α (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + cos²α)/2 cos²α (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are limited to a maximum working pressure of 0.17 MN/m² 1.7 MN/m² 17 MN/m² 170 MN/m² 0.17 MN/m² 1.7 MN/m² 17 MN/m² 170 MN/m² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Adiabatic process is Reversible process Essentially an isentropic process Constant temperature process Non-heat transfer process Reversible process Essentially an isentropic process Constant temperature process Non-heat transfer process 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
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