Steam Boilers, Engines, Nozzles and Turbines The ratio of the actual vacuum to the ideal vacuum in a condenser is called Boiler efficiency Vacuum efficiency Nozzle efficiency Condenser efficiency Boiler efficiency Vacuum efficiency Nozzle efficiency Condenser efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An air preheater Increases the efficiency of the boiler Enables low grade fuel to be burnt All of these Increases evaporative capacity of the boiler Increases the efficiency of the boiler Enables low grade fuel to be burnt All of these Increases evaporative capacity of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of Lancashire boiler varies from 9 to 10 m 7.25 to 9 m 6 to 7 m 5 to 6 m 9 to 10 m 7.25 to 9 m 6 to 7 m 5 to 6 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines While steam expands in turbines, theoretically the entropy Remains constant Behaves unpredictably Decreases Increases Remains constant Behaves unpredictably Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The three "Ts" for good combustion are Total air, time, and temperature Temperature, time, and turbulence Total air, true fuel, and turbulence Thorough mixing, total air and temperature Total air, time, and temperature Temperature, time, and turbulence Total air, true fuel, and turbulence Thorough mixing, total air and temperature ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines O₂ content in atmospheric air on weight basis is 0.21 0.23 0.3 0.4 0.21 0.23 0.3 0.4 ANSWER DOWNLOAD EXAMIANS APP
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