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 = V² cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cosα Vb = V² cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The three "Ts" for good combustion are Total air, true fuel, and turbulence Total air, time, and temperature Thorough mixing, total air and temperature Temperature, time, and turbulence Total air, true fuel, and turbulence Total air, time, and temperature Thorough mixing, total air and temperature Temperature, time, and turbulence ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fittings mounted on the boiler for its proper and safe functioning is a All of these Water level indicator Pressure gauge Safety valve All of these Water level indicator Pressure gauge Safety valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than 10 kg/cm² 5 kg/cm² 7580 kg/cm² Atmospheric pressure 10 kg/cm² 5 kg/cm² 7580 kg/cm² Atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines It is required to produce large amount of steam at low pressure. Which boiler should be used? Lancashire boiler Pulverized fuel fired boiler Babcock and Wilcox boiler Cochran boiler Lancashire boiler Pulverized fuel fired boiler Babcock and Wilcox boiler Cochran boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam turbines may be classified according to Number of stages All of these Direction of steam flow Mode of steam action Number of stages All of these Direction of steam flow Mode of steam action ANSWER DOWNLOAD EXAMIANS APP
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