Steam Boilers, Engines, Nozzles and Turbines The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blades are equiangular and frictionless Blade velocity coefficient is unity Blades are equiangular Blade solidity is 0.65 Blades are equiangular and frictionless Blade velocity coefficient is unity Blades are equiangular Blade solidity is 0.65 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The rate of discharge through the nozzle ___ when the exit pressure is gradually reduced. Remains same Decreases None of the listed here Increases Remains same Decreases None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Duplex feed pumps are used in small steam boilers. These operate on the principle of Axial flow pump Reciprocating pump Gear pump Centrifugal pump Axial flow pump Reciprocating pump Gear pump Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Ultimate analysis of fuel is determination of percentage of Fixed carbon, ash, volatile matter, moisture Higher calorific value Lower calorific value Carbon, hydrogen, nitrogen, sulphur, moisture Fixed carbon, ash, volatile matter, moisture Higher calorific value Lower calorific value Carbon, hydrogen, nitrogen, sulphur, moisture ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The state of vapor under saturation condition is described by Temperature alone Pressure alone Pressure and temperature Pressure and dryness fraction Temperature alone Pressure alone Pressure and temperature Pressure and dryness fraction ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following gases has the highest calorific value? Coal gas Producer gas Blast furnace gas Water gas Coal gas Producer gas Blast furnace gas Water gas ANSWER DOWNLOAD EXAMIANS APP
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