Steam Boilers, Engines, Nozzles and Turbines The ratio of total useful heat drop to the total isentropic heat drop, is called Stage efficiency Internal efficiency Rankine efficiency None of these Stage efficiency Internal efficiency Rankine efficiency None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio is given by (where p₁ = Initial pressure of steam, and p₂ = Pressure of steam at throat or critical pressure) p₁/p₂ p₁. p₂ p₁ + p₂ p₂/p₁ p₁/p₂ p₁. p₂ p₁ + p₂ p₂/p₁ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Pick up wrong statement about desired properties of a good fuel Ease in storing Produce minimum smoke and gases High calorific value High ignition point Ease in storing Produce minimum smoke and gases High calorific value High ignition point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure at which latent heat of vaporisation of water is zero, is 100 kg/cm² 225.6 kg/cm² 1 kg/cm² Below atmospheric pressure 100 kg/cm² 225.6 kg/cm² 1 kg/cm² Below atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Presence of moisture in fuel oil would Keep the burner tips cool Aid in proper combustion Clean the nozzles Because sputtering, possibly extinguishing flame Keep the burner tips cool Aid in proper combustion Clean the nozzles Because sputtering, possibly extinguishing flame ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of superheated tubes in a locomotive boiler is 130 mm 31 mm 13 mm 230 mm 130 mm 31 mm 13 mm 230 mm ANSWER DOWNLOAD EXAMIANS APP
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