Steam Boilers, Engines, Nozzles and Turbines Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler Remain unaffected Decreases First increases and then decreases Increases Remain unaffected Decreases First increases and then decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The amount of water evaporated in kg per kg of fuel burnt is called None of these Evaporative capacity of a boiler Boiler efficiency Equivalent evaporation from and at 100° C None of these Evaporative capacity of a boiler Boiler efficiency Equivalent evaporation from and at 100° C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A steam turbine, in which a part of the steam after partial expansion, is used for process heating and the remaining steam is further expanded for power generation, is known as Pass out turbine Back pressure turbine Low pressure turbine Impulse turbine Pass out turbine Back pressure turbine Low pressure turbine Impulse turbine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The average operating pressure of Benson boiler is 150 bar 100 bar 200 bar 250 bar 150 bar 100 bar 200 bar 250 bar ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially wet steam is 0.601 0.577 0.582 0.546 0.601 0.577 0.582 0.546 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Secondary air is the air used to Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Air delivered by induced draft fan Provide air around burners for obtaining optimum combustion Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Air delivered by induced draft fan Provide air around burners for obtaining optimum combustion ANSWER DOWNLOAD EXAMIANS APP
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