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 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 1.05 6.65 2.86 10.05 1.05 6.65 2.86 10.05 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler H.P. is defined as the Work done by 1 kg of steam at saturation condition Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam Steam evaporation rate per kg of fuel fired The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam Work done by 1 kg of steam at saturation condition Work done in evaporating 1 kg of steam per hour from and at 100°C into dry saturated steam Steam evaporation rate per kg of fuel fired The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The shell of the Cochran boiler is made hemispherical To withstand the pressure of steam inside the boiler None of these Both (A) and (B) To give maximum space and strength To withstand the pressure of steam inside the boiler None of these Both (A) and (B) To give maximum space and strength ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are Internally fired None of these Internally as well as externally fired Externally fired Internally fired None of these Internally as well as externally fired Externally fired ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The relative efficiency is defined as the Ratio of thermal efficiency to Rankine efficiency Ratio of brake power to the indicated power Product of thermal efficiency and Rankine efficiency Ratio of heat equivalent to indicated power to the energy supplied in steam Ratio of thermal efficiency to Rankine efficiency Ratio of brake power to the indicated power Product of thermal efficiency and Rankine efficiency Ratio of heat equivalent to indicated power to the energy supplied in steam ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS