Steam Boilers, Engines, Nozzles and Turbines Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of 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 Fouling of heat transfer surfaces Higher effectiveness of boiler Raising of steam temperature ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following boiler works on a forced circulation of water? Loeffler boiler Lamont boiler Benson boiler All of these Loeffler boiler Lamont boiler Benson boiler All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The increase in pressure Raises the boiling point of a liquid Reduces its volume Lowers the boiling point of a liquid Does not affects the boiling point of a liquid Raises the boiling point of a liquid Reduces its volume Lowers the boiling point of a liquid Does not affects the boiling point of a liquid ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is All of these To determine the generating capacity of the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To prepare heat balance sheet for the boiler All of these To determine the generating capacity of the boiler To determine the thermal efficiency of the boiler when working at a definite pressure To prepare heat balance sheet for the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used to heat feed water by utilizing the heat in me exhaust flue gases before leaving through the chimney, is known as Superheater Economizer Stop valve Fusible plug Superheater Economizer Stop valve Fusible plug ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = V² cos α Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cos α ANSWER DOWNLOAD EXAMIANS APP
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