Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Increase flue gas temperature Increase thermal efficiency of boiler Economize on fuel Extract heat from the exhaust flue gases Increase flue gas temperature Increase thermal efficiency of boiler Economize on fuel Extract heat from the exhaust flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Coke is produced by Enriching carbon in the coal Heating wood in a limited supply of air at temperatures below 300°C Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel Pulverizing coal in inert atmosphere Enriching carbon in the coal Heating wood in a limited supply of air at temperatures below 300°C Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel Pulverizing coal in inert atmosphere ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The steam enters the nozzle at a High pressure and a high velocity Low pressure and a high velocity High pressure and a low velocity Low pressure and a low velocity High pressure and a high velocity Low pressure and a high velocity High pressure and a low velocity Low pressure and a low velocity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Hard coke is produced by carburization of coal at 950-1100°C Atmospheric temperature 500-600°C 700-850°C 950-1100°C Atmospheric temperature 500-600°C 700-850°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The three "Ts" for good combustion are Thorough mixing, total air and temperature Total air, time, and temperature Total air, true fuel, and turbulence Temperature, time, and turbulence Thorough mixing, total air and temperature Total air, time, and temperature Total air, true fuel, and turbulence Temperature, time, and turbulence ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of friction in the nozzle ___ dryness fraction of steam. Has no effect on None of the listed here Increases Decreases Has no effect on None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
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