Steam Boilers, Engines, Nozzles and Turbines The safety valve on boiler drum compared to safety valve on superheater is set at Higher value Same value Lower/higher depending on steam flow Lower value Higher value Same value Lower/higher depending on steam flow Lower value ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The average operating pressure of Benson boiler is 150 bar 250 bar 200 bar 100 bar 150 bar 250 bar 200 bar 100 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The latent heat of steam with increase of pressure Remain same Behaves unpredictably Decreases Increases Remain same Behaves unpredictably Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In order to compare the capacity of boilers, the feed water temperature and working pressure are taken as 100°C and 1.1 bar pressure 50°C and normal atmospheric pressure 50°C and 1.1 bar pressure 100°C and normal atmospheric pressure 100°C and 1.1 bar pressure 50°C and normal atmospheric pressure 50°C and 1.1 bar pressure 100°C and normal atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio (p₂/p₁) is given by (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [(n + 1)/2] n - (1/n) (p₂/p₁) = [2/(n - 1)] n/(n + 1) (p₂/p₁) = [2/(n + 1)] n/(n-1) (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [(n + 1)/2] n - (1/n) (p₂/p₁) = [2/(n - 1)] n/(n + 1) (p₂/p₁) = [2/(n + 1)] n/(n-1) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A supercritical boiler is one that operates above the pressure and temperature of following values 100 kg/cm² and 540°C 218 kg/cm² abs and 373°C 1 kg/cm² and 100°C 218 kg/cm² abs and 540°C 100 kg/cm² and 540°C 218 kg/cm² abs and 373°C 1 kg/cm² and 100°C 218 kg/cm² abs and 540°C ANSWER DOWNLOAD EXAMIANS APP
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