Steam Boilers, Engines, Nozzles and Turbines If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by Combined separating and throttling calorimeter Separating calorimeter Throttling calorimeter Bucket calorimeter Combined separating and throttling calorimeter Separating calorimeter Throttling calorimeter Bucket calorimeter ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades. 10 to 15% 15 to 20% 30 to 40% 20 to 30% 10 to 15% 15 to 20% 30 to 40% 20 to 30% 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 The ratio of heat actually used in producing the steam to the heat liberated in the furnace, is known as Boiler efficiency Factor of evaporation Power of a boiler Equivalent evaporation Boiler efficiency Factor of evaporation Power of a boiler Equivalent evaporation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Steam in water tube boiler as compared to fire tube boiler Can be raised rapidly Could be raised at fast/slow rate depending on design Is raised at slower rate Is raised at same rate Can be raised rapidly Could be raised at fast/slow rate depending on design Is raised at slower rate Is raised at same rate ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a nozzle, the effect of super-saturation is to Increase the entropy Decrease specific volume of steam Decrease dryness fraction of steam Increase the heat drop Increase the entropy Decrease specific volume of steam Decrease dryness fraction of steam Increase the heat drop ANSWER DOWNLOAD EXAMIANS APP
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