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) p₂/p₁ p₁. p₂ p₁ + p₂ p₁/p₂ p₂/p₁ p₁. p₂ p₁ + p₂ p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The cylindrical shell of a Lancashire boiler has diameter from 1.5 to 2.5 m 1.75 to 2.75 m 1 to 2 m 1.25 to 2.25 m 1.5 to 2.5 m 1.75 to 2.75 m 1 to 2 m 1.25 to 2.25 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of shell of a Locomotive boiler is 3 m 4 m 1 m 2 m 3 m 4 m 1 m 2 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The chimney draught varies with Climatic conditions All of these Height of chimney Temperature of furnace gases Climatic conditions All of these Height of chimney Temperature of furnace gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of total useful heat drop to the total isentropic heat drop, is called None of these Stage efficiency Internal efficiency Rankine efficiency None of these Stage efficiency Internal efficiency Rankine efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At which pressure the properties of water and steam become identical 225.6 kg/cm² 0.1 kg/cm² 1 kg/cm² 100 kg/cm² 225.6 kg/cm² 0.1 kg/cm² 1 kg/cm² 100 kg/cm² ANSWER DOWNLOAD EXAMIANS APP