Steam Boilers, Engines, Nozzles and Turbines A condenser in a steam power plant All of these Reduces temperature of exhaust steam Increases expansion ratio of steam Reduces back pressure of steam All of these Reduces temperature of exhaust steam Increases expansion ratio of steam Reduces back pressure of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by (h × hf1)/2257 (h - hf1)/2257 None of these (h + hf1)/2257 (h × hf1)/2257 (h - hf1)/2257 None of these (h + hf1)/2257 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of Fouling of heat transfer surfaces Higher effectiveness of boiler Raising of steam temperature High calorific value coal being burnt Fouling of heat transfer surfaces Higher effectiveness of boiler Raising of steam temperature High calorific value coal being burnt ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly 2.86 1.05 6.65 10.05 2.86 1.05 6.65 10.05 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is _________ the condenser pressure. Equal to Lower than Higher than None of these Equal to Lower than Higher than None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of 40 atmospheres 30 atmospheres 20 atmospheres 10 atmospheres 40 atmospheres 30 atmospheres 20 atmospheres 10 atmospheres ANSWER DOWNLOAD EXAMIANS APP
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