Steam Boilers, Engines, Nozzles and Turbines Reheating of steam in a turbine Reduces wear on the blades Increases the work-done through the turbine Increases the efficiency of the turbine All of these Reduces wear on the blades Increases the work-done through the turbine Increases the efficiency of the turbine All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In designing air preheaters, the important design consideration is that Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point Approach temperature should be as low as possible Heat transfer area should be optimum Handling and maintenance should be easier Stack gases should not be cooled to the dew point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at 700-850°C 950-1100°C Atmospheric temperature 500-600°C 700-850°C 950-1100°C Atmospheric temperature 500-600°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse reaction turbine has its driving force As a reaction force As an impulsive force Partly as an impulsive force and partly as a reaction force None of the listed here As a reaction force As an impulsive force Partly as an impulsive force and partly as a reaction force None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by Curved line Straight inclined line Vertical straight line Horizontal straight line Curved line Straight inclined line Vertical straight line Horizontal straight line ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following gases has the highest calorific value? Producer gas Water gas Coal gas Blast furnace gas Producer gas Water gas Coal gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
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