Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) sin²α cos²α cot²α tan²α sin²α cos²α cot²α tan²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in, a Coarran and Scottish marine boiler are Both horizontal and vertical Horizontal Vertical Inclined Both horizontal and vertical Horizontal Vertical Inclined ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The air pressure at the fuel bed is reduced below that of atmosphere by means of a fan placed at or near the bottom of the chimney to produce a draught. Such a draught is called Balanced draught Induced draught Natural draught Forced draught Balanced draught Induced draught Natural draught Forced draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum steam pressure in a Locomotive boiler is limited to 180 MN/m² 18 MN/m² 1.8 MN/m² 0.18 MN/m² 180 MN/m² 18 MN/m² 1.8 MN/m² 0.18 MN/m² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure at which latent heat of vaporisation of water is zero, is 225.6 kg/cm² Below atmospheric pressure 100 kg/cm² 1 kg/cm² 225.6 kg/cm² Below atmospheric pressure 100 kg/cm² 1 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Rateau turbine is Pressure compounded turbine Velocity compounded turbine Simple reaction turbine Pressure-velocity compounded turbine Pressure compounded turbine Velocity compounded turbine Simple reaction turbine Pressure-velocity compounded turbine ANSWER DOWNLOAD EXAMIANS APP
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