Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) sin²α cot²α cos²α tan²α sin²α cot²α cos²α tan²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught in locomotive boilers is produced by a Centrifugal fan None of these Steam jet Chimney Centrifugal fan None of these Steam jet Chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Feed water conditioning in thermal power plants in done to Reduce hardness and for removal of solids Increase heat transfer rate Increase steam parameters Increase efficiency of thermal power plant Reduce hardness and for removal of solids Increase heat transfer rate Increase steam parameters Increase efficiency of thermal power plant 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) = [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) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure at which latent heat of vaporisation is zero is 1 kgf/ cm² 100 kgf/ cm² 225.65 kgf/ cm² 273 kgf/ cm² 1 kgf/ cm² 100 kgf/ cm² 225.65 kgf/ cm² 273 kgf/ cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A condenser where circulating water flows through tubes which are surrounded by steam, in known as Jet condenser Barometric condenser Surface condenser Evaporative condenser Jet condenser Barometric condenser Surface condenser Evaporative condenser ANSWER DOWNLOAD EXAMIANS APP
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