Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Extract heat from the exhaust flue gases Increase flue gas temperature Increase thermal efficiency of boiler Economize on fuel Extract heat from the exhaust flue gases Increase flue gas temperature Increase thermal efficiency of boiler Economize on fuel ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A nozzle is said to be a convergent nozzle When the cross-section of the nozzle increases continuously from entrance to exit When the cross-section of the nozzle decreases continuously from entrance to exit None of these When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit When the cross-section of the nozzle increases continuously from entrance to exit When the cross-section of the nozzle decreases continuously from entrance to exit None of these When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a flywheel is To convert rotary motion of the crankshaft into to and fro motion of the valve rod To prevent fluctuation of speed To convert reciprocating motion of the piston into rotary motion To keep the engine speed uniform at all load conditions To convert rotary motion of the crankshaft into to and fro motion of the valve rod To prevent fluctuation of speed To convert reciprocating motion of the piston into rotary motion To keep the engine speed uniform at all load conditions ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of Cornish boiler is of the order of 2.53.5 m 23 m 1.52.5 m 12 m 2.53.5 m 23 m 1.52.5 m 12 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Desecration of feed water is carried out because it reduces Corrosion caused by oxygen 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 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At which pressure the properties of water and steam become identical 225.6 kg/cm² 0.1 kg/cm² 100 kg/cm² 1 kg/cm² 225.6 kg/cm² 0.1 kg/cm² 100 kg/cm² 1 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
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