Steam Boilers, Engines, Nozzles and Turbines At very low temperature, the melting and boiling temperatures become equal. This temperature is 373°K 273.16°K 0°K 303°K 373°K 273.16°K 0°K 303°K ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared to fire tube boiler. None of these Equal More Less None of these Equal More Less ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A condenser in a steam power plant Increases expansion ratio of steam Reduces temperature of exhaust steam Reduces back pressure of steam All of these Increases expansion ratio of steam Reduces temperature of exhaust steam Reduces back pressure of steam All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is All of these To prepare heat balance sheet for the boiler To determine the generating capacity of the boiler To determine the thermal efficiency of the boiler when working at a definite pressure All of these To prepare heat balance sheet for the boiler To determine the generating capacity of the boiler To determine the thermal efficiency of the boiler when working at a definite pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The shell of the Cochran boiler is made hemispherical 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 To withstand the pressure of steam inside the boiler None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where H = Height of the chimney in meters, and T1 = Absolute temperature of air outside the chimney in K) 176.5H/T1 88.25H/T1 T1 /176.5H T1 /88.25H 176.5H/T1 88.25H/T1 T1 /176.5H T1 /88.25H ANSWER DOWNLOAD EXAMIANS APP
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