Steam Boilers, Engines, Nozzles and Turbines Expanding steam to a very low pressure (high vacuum) in steam engines is Desirable Essential Uneconomical Economical Desirable Essential Uneconomical Economical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum discharge of steam through a convergent-divergent nozzle depends upon Area of nozzle at throat Both (A) and (B) Final pressure of steam leaving the nozzle Initial pressure and volume of steam Area of nozzle at throat Both (A) and (B) Final pressure of steam leaving the nozzle Initial pressure and volume of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Heating of dry steam above saturation temperature is known as Superheating Latent heat Enthalpy Super saturation Superheating Latent heat Enthalpy Super saturation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The clearance in the engine cylinder Decreases the efficiency of the engine All of these Increases the mean effective pressure Increases the workdone Decreases the efficiency of the engine All of these Increases the mean effective pressure Increases the workdone 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) p₂/p₁ p₁/p₂ p₁ + p₂ p₁. p₂ p₂/p₁ p₁/p₂ p₁ + p₂ p₁. p₂ ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines One kg of steam sample contains 0.8 kg dry steam? Its dryness fraction is 0.8 0.2 0.6 1 0.8 0.2 0.6 1 ANSWER DOWNLOAD EXAMIANS APP
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