Steam Boilers, Engines, Nozzles and Turbines Desecration of feed water is carried out because it reduces pH value of water Cavitation of boiler feed pumps Heat transfer coefficient Corrosion caused by oxygen pH value of water Cavitation of boiler feed pumps Heat transfer coefficient Corrosion caused by oxygen ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called Gross or stage efficiency Nozzle efficiency Mechanical efficiency Blading efficiency Gross or stage efficiency Nozzle efficiency Mechanical efficiency Blading efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in, a Coarran and Scottish marine boiler are Inclined Horizontal Vertical Both horizontal and vertical Inclined Horizontal Vertical Both horizontal and vertical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a single acting steam engine The steam is admitted, in turn, on both sides of the piston and one working stroke is produced during each revolution of the crankshaft The steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft The steam is admitted, in turn, on both sides of the piston and two working strokes are produced during each revolution of the crankshaft The steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft The steam is admitted, in turn, on both sides of the piston and one working stroke is produced during each revolution of the crankshaft The steam is admitted on one side of the piston and two working strokes are produced during each revolution of the crankshaft The steam is admitted, in turn, on both sides of the piston and two working strokes are produced during each revolution of the crankshaft The steam is admitted on one side of the piston and one working stroke is produced during each revolution of the crankshaft ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + cos²α)/2 cos²α (1 + sin²α)/2 sin²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + cos²α)/2 cos²α (1 + sin²α)/2 sin²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is used where working pressure and power required are Moderate None of these High Low Moderate None of these High Low ANSWER DOWNLOAD EXAMIANS APP
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