Steam Boilers, Engines, Nozzles and Turbines When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be Over-damping None of these Under-damping Choked Over-damping None of these Under-damping Choked ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser in a boiler Decreases steam pressure Decreases fuel consumption Increases steam pressure Increases steam flow Decreases steam pressure Decreases fuel consumption Increases steam pressure Increases steam flow ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio (p₂/p₁) is given by (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) (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [(n + 1)/2] n - (1/n) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as Power of the boiler Efficiency of the fan Efficiency of the chimney Efficiency of the boiler Power of the boiler Efficiency of the fan Efficiency of the chimney Efficiency of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The major axis of elliptical manholes on the shell should be provided Longitudinally Circumferentially On dished end Anywhere Longitudinally Circumferentially On dished end Anywhere ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Stage efficiency is also known as Gross efficiency None of these Diagram efficiency Nozzle efficiency Gross efficiency None of these Diagram efficiency Nozzle efficiency ANSWER DOWNLOAD EXAMIANS APP
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