Steam Boilers, Engines, Nozzles and Turbines The three "Ts" for good combustion are Temperature, time, and turbulence Total air, true fuel, and turbulence Thorough mixing, total air and temperature Total air, time, and temperature Temperature, time, and turbulence Total air, true fuel, and turbulence Thorough mixing, total air and temperature Total air, time, and temperature ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as Efficiency of the boiler Efficiency of the fan Efficiency of the chimney Power of the boiler Efficiency of the boiler Efficiency of the fan Efficiency of the chimney Power of the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Boiler H.P. is defined as the 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 Work done by 1 kg of steam at saturation condition The evaporation of 15.65 kg of water per hour from and at 100°C into dry saturated steam 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 Work done by 1 kg of steam at saturation condition 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 A supercritical boiler is one that operates above the pressure and temperature of following values 218 kg/cm² abs and 540°C 100 kg/cm² and 540°C 1 kg/cm² and 100°C 218 kg/cm² abs and 373°C 218 kg/cm² abs and 540°C 100 kg/cm² and 540°C 1 kg/cm² and 100°C 218 kg/cm² abs and 373°C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade. None of these Greater than Less than Equal to None of these Greater than Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The proximate analysis of fuel lists Various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as percents by weight Fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash Fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash Various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as percents by volume Various chemical constituents, carbon, hydrogen, oxygen, etc, plus ash as percents by weight Fuel constituents as percents by weight of moisture, volatile, fixed carbon and ash Fuel constituents as percents by volume of moisture, volatile, fixed carbon and ash Various chemical constituents, carbon, hydrogen, oxygen etc, plus ash as percents by volume ANSWER DOWNLOAD EXAMIANS APP
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