Steam Boilers, Engines, Nozzles and Turbines The natural draught is produced by Both (A) and (B) Centrifugal fan Chimney Steam jet Both (A) and (B) Centrifugal fan Chimney Steam jet ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Expansion ratio is the ratio of Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the clearance volume Swept volume to the volume at cut-off Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the clearance volume Swept volume to the volume at cut-off ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Incomplete combustion can be best judged by Measuring temperature of flue gases at exit of furnace Smoky chimney exit Measuring carbon monoxide in flue gases Excess air in flue gases Measuring temperature of flue gases at exit of furnace Smoky chimney exit Measuring carbon monoxide in flue gases Excess air in flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and α = Nozzle angle) Vb = V cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V² cosα Vb = V cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V² cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The size of a boiler drum in pulverized fuel fired boiler, as its size and capacity, (steam pressure and flow ratings) increase Increases/decreases depending on steam temperature requirements Decreases Remains unchanged Increases Increases/decreases depending on steam temperature requirements Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following substance will have same percentage in both proximate and ultimate analysis? Moisture Hydrogen Volatile matter Ash Moisture Hydrogen Volatile matter Ash ANSWER DOWNLOAD EXAMIANS APP
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