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 = 0.5 V cosα Vb = V² cosα Vb = 0.5 V² cosα Vb = V cosα Vb = 0.5 V cosα Vb = V² cosα Vb = 0.5 V² cosα Vb = V cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam engine operates on Stirling cycle Joule cycle Carnot cycle Brayton cycle Stirling cycle Joule cycle Carnot cycle Brayton cycle ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about the function of furnace? To provide proper conditions for continuous complete combustion Separate ash from coal Maintain heat supply to prepare and ignite the incoming fuel Mix fuel with air and ignite To provide proper conditions for continuous complete combustion Separate ash from coal Maintain heat supply to prepare and ignite the incoming fuel Mix fuel with air and ignite ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines By compounding the expansion of steam in two or more cylinders, the length of stroke Increases None of these Does not change Decreases Increases None of these Does not change Decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are Purchased from several parties and packed together at site Packaged boiler does not exist Supplied mounted on a single base Supplied by same manufacturer loose and assembled at site Purchased from several parties and packed together at site Packaged boiler does not exist Supplied mounted on a single base Supplied by same manufacturer loose and assembled at site ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The relative heat absorption for successively added equal areas of boiler convection heating surfaces Remain unaffected Decreases Increases First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS