Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially wet steam is 0.582 0.577 0.601 0.546 0.582 0.577 0.601 0.546 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 p₁ + p₂ p₂/p₁ p₁/p₂ p₁. p₂ p₁ + p₂ p₂/p₁ p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure at which latent heat of vaporisation of water is zero, is 100 kg/cm² 1 kg/cm² Below atmospheric pressure 225.6 kg/cm² 100 kg/cm² 1 kg/cm² Below atmospheric pressure 225.6 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following boiler works on a forced circulation of water? Loeffler boiler Benson boiler All of these Lamont boiler Loeffler boiler Benson boiler All of these Lamont boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In locomotives, the draught is produced by Induced draft fan Chimney Both combined (A) and (B) Steam jet draught Induced draft fan Chimney Both combined (A) and (B) Steam jet draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction present between the steam and the nozzle surfaces reduces the heat drop by 25 to 40% 15 to 25% 40 to 60% 10 to 15% 25 to 40% 15 to 25% 40 to 60% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
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