Steam Boilers, Engines, Nozzles and Turbines A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg per hour of steam. The steam consumption in kg per hour when developing 20 kW will be nearly 210 kg/h 280 kg/h 340 kg/h 150 kg/h 210 kg/h 280 kg/h 340 kg/h 150 kg/h ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about pulverized fuel firing? High burning rate is possible It is the best technique for burning high ash content fuel having low fusion ash Fuel burns economically Heat release can be easily controlled High burning rate is possible It is the best technique for burning high ash content fuel having low fusion ash Fuel burns economically Heat release can be easily controlled ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A safety valve mainly used with locomotive and marine boilers is High steam and low water safety valve Lever safety valve Dead weight safety valve Spring loaded safety valve High steam and low water safety valve Lever safety valve Dead weight safety valve Spring loaded safety valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades. 30 to 40% 15 to 20% 20 to 30% 10 to 15% 30 to 40% 15 to 20% 20 to 30% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blades are equiangular Blade velocity coefficient is unity Blade solidity is 0.65 Blades are equiangular and frictionless Blades are equiangular Blade velocity coefficient is unity Blade solidity is 0.65 Blades are equiangular and frictionless ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηB × ηN ηS = ηN / ηB ηS = ηB / ηN None of the listed here ηS = ηB × ηN ηS = ηN / ηB ηS = ηB / ηN None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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