Steam Boilers, Engines, Nozzles and Turbines A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called Woolf type compound engine Receiver type compound engine Both (A) and (B) Tandem type compound engine Woolf type compound engine Receiver type compound engine Both (A) and (B) Tandem type compound engine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Incomplete combustion can be best judged by Excess air in flue gases Measuring temperature of flue gases at exit of furnace Measuring carbon monoxide in flue gases Smoky chimney exit Excess air in flue gases Measuring temperature of flue gases at exit of furnace Measuring carbon monoxide in flue gases Smoky chimney exit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as Equivalent evaporation Factor of evaporation Power of a boiler Boiler efficiency Equivalent evaporation Factor of evaporation Power of a boiler Boiler efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines O₂ content in atmospheric air on weight basis is 0.4 0.21 0.3 0.23 0.4 0.21 0.3 0.23 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 V² cosα Vb = 0.5 V cosα Vb = V² cosα Vb = V cosα Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V² cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The radius of a dished head is taken approximately as One Two One fourth Half One Two One fourth Half ANSWER DOWNLOAD EXAMIANS APP
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