Steam Boilers, Engines, Nozzles and Turbines The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle) V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following are boiler accessories? Both (A) and (B) Superheater Economizer None of these Both (A) and (B) Superheater Economizer None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The effect of super-saturation is that the Exit velocity of steam reduces Entropy and specific volume of the steam increases All of these Mass of the steam discharged increases Exit velocity of steam reduces Entropy and specific volume of the steam increases All of these Mass of the steam discharged increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks 0° to each other None of these 180° to each other 90° to each other 0° to each other None of these 180° to each other 90° to each other ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Economize on fuel Increase flue gas temperature Increase thermal efficiency of boiler Extract heat from the exhaust flue gases Economize on fuel Increase flue gas temperature Increase thermal efficiency of boiler Extract heat from the exhaust flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit. Fusible plug Stop valve Blow off cock Safety valve Fusible plug Stop valve Blow off cock Safety valve ANSWER DOWNLOAD EXAMIANS APP
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